DUOYI feature image

DUOYI

Review rating Review rating Review rating Review rating Review rating 4.4 Fact checked

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

When purchasing a product, price is the consumer's primary concern. At present, DUOYI has 183 products for sale. DUOYI products range in price from $17.99 to $299, and the average price of all the products is about $81.36.

You can confidently purchase DUOYI products from the seller DUOYIDirect. The brand holds an average rating of 4.4, testifying to its excellent reputation.

DUOYI Best Sellers

Last Updated: Jan 12, 2025

Power Circuit Probe Tester 6V-24V DC Test Light Short Circuit Tester Component Activation Electrical Tester Polarity Identify Continuity Tester with LED Light, Long Test Lead, Overload Protection

[Short Circuit Following and Locating Test Light] The circuit tester is suitable for diagnostic in all 6V to 24V DC vehicle electrical systems. It can check switches, relays and the on-off of diodes, fuses and circuits, which can help you reduce diagnostic time in automotive electrical systems. In most cases, short circuit or instant overload of component will lead to blown fuse or circuit breaker tripping.This probe tester can assist you tracing problem wires and locating breaking points.
[Polarity Identification & Continuity Testing & Jumper Lead Operation] This power circuit probe tester can help you quickly identify positive and negative polarity of electric cables and plugs of vehicles. When the probe tip contact to the positive electrode, the RED light on. When the probe tip contact to the negative electrode, the GREEN light on. It can also test for continuity and do the jumper lead operation with the assistance of its auxiliary ground lead.
[Activate and Test Components In/Out of Vehicle's Electrical System&Poor Ground Contact Testing] Power circuit probe tester could activate components in and out of the vehicle's electrical system, test and check the components if defective or not, or if rating current of component is higher than that of the circuit tester. For some components, the negative terminal is required to be well grounded to cope with the flow of large currents, this circuit tester is a good tool to test their grounding.
[13FT Long Extension Cable&LED Light Prompt&Buzzer Warning&Highly Sensitive Probe&Clips with Strong Bite] The cable length of the circuit tracer is about 4m(13ft) which allows you access and test any electrical system easily. The LED indicator and buzzer warning can help you clear problems at a glance. Test light adopts advanced high sensitivity probe, which provides you quick and accurate detection. Its clips with strong bite force which not easy to fall off, providing you better experience.
[Quick Self-Test & Overload Protection] Before you test a circuit or component, the test light can perform a quick self-test to ensure your tool is in good condition. Equipped with overload protection, when the current exceeds 7A, the circuit tester will disconnect the current automatically and give you a buzzer prompt. You can test poor ground contacts directly. Note: This electrical tester can not be used for 110/220V systems, it is only used for DC 6-24V systems. Do not use on AC voltage.
[Automatic Reset Test Light] When the circuit breaker trip is detected, the power circuit probe tester will sound a prompt to remind you that there is a short circuit problem. Then it will automatically reset within 3 to 5 seconds(the prompt sound will automatically turn off), so you can retest or go to test other places.
[Easy Operation Circuit Tester] Unroll the leads. Clamp the red clip of the power circuit probe tester to the positive terminal of the vehicle's battery. Clamp the black clip to the negative terminal of the vehicle's battery. After a simple hook-up of the circuit tracer to the vehicle's battery, automotive technician can conduct a positive or negative battery current to the tip by rocking the power switch forward or backward.

Digital Manifold Gauge For 93 Refrigerant Digital Manifold Gauge Set HVAC pressure&Temp Test Air Conditioning Tools & Equipment Supercooling/Superheating Test HVAC Digital Gauges with 3.5"LCD Display

[Digital Manifold Gauge Set For 93 Refrigerants] Compared with other refrigerants meter,our digital manifold gauge can be filled with 93 types of refrigerants and has a wide range of applications.Meter have multiple functions such as dual pressure/temperature test,condensation evaporation pressure/temperature test,pressure leak test,vacuum degree test,calculation of supercooling/superheating.It is suitable for refrigeration equipment such as air conditioners, cold storages and refrigerators.
[Dual Pressure&Temp Test Of High/Low Pressure Pipelines] HVAC gauges can measure the pressure/temperature of the refrigerant in the high/low pressure pipelines of the air conditioner in real time.During the refrigerant pressure test,the meter can display the corresponding evaporation/condensation temperature.The smaller the deviation between the temperature measured by the temperature sensor and the evaporative condensation temp., the better the cooling effect and the quality of the refrigerant.
[Condensing/Evaporating Pressure And Temp Test&Supercooling/Superheating Test] During the refrigerant pressure test,it can automatically test the refrigerant condensation/evaporation pressure temp.The lower the condensation/evaporation pressure and temp, the better the cooling effect.The degree of supercooling/superheating is automatically read.The greater the degree of superheating,the less refrigerant is filling,the lower the degree of subcooling can improve the cooling capacity of the system.
[Vacuum Measurement & Pressure Leakge Test&High/Low Pressure Temp Test] Refrigerant meter vacuum table of the digital gauges hvac can be switched to each other.Vacuum test can test the percentage of vacuum measurement and vacuum pressure,can judge the air tightness of the pipeline.Calculate the pressure difference between the initial test pressure and the second test pressure, and observe whether there is any leakage in the refrigeration system pipeline,and can record the leakage time speed.
[V-Shaped Valve Switch&High-Precision Data] High/low pressure valve of the digital refrigerant gauges adopts a V-shaped design.Compared with the ordinary knob valve,the V-shaped valve is easier to control the amount of refrigerant filling,saving operation time,and Material is more durable.Built-in 32-bit digital processing unit and high-precision data acquisition unit,the data volume is high and stable.Pressure/temperature multi-unit automatic conversion (kPa,Mpa,bar,inHg,PSI,Celsius,Fahrenheit)
[3.5" Backlit Display & Visual Refrigerant Filling Window & High Strength Material] HVAC digital manifold gauge set adopts 3.5-inch backlight display design,the data is easy to read,and each test result is divided by lines on the screen,the data is more intuitive.HVAC digital gauges is made of high-strength engineering plastic,with anti-slip design on both sides,which is comfortable to hold and durable.Meter has a visualization window through which you can keep an eye on the refrigerant filling.
[Note] To ensure normal use, be sure to close the valve before each start or use, and then press ZERO to reset . When the value on the display is eliminated, then connect the three-color hose and then open the valve for use.

Golf Cart Charger 36 Volt EZGO Charger 20AMP 36 Volt Golf Cart Battery Charger EZGO TXT 36v Golf Cart Charger Trickle Charger EZGO Golf Cart Charger IP67 Waterproof Lead Acid Battery Charger

[36V 20A Fast Charger for EZGO/TXT] Golf cart battery charger is designed for 36 volt EZGO and TXT golf carts, with advanced intelligent charging technology, working efficiency up to 92%, providing 36V 20A 1250W high output, with high output voltage/current precision and good stability. The charging process is automatically controlled by the charging program, and when the battery reaches full charge, the charger will automatically shut down and provide zero DC output to prevent overcharging.
[Intelligent Trickle Charging Technology] EZGO golf cart charger adopts intelligent trickle charging technology, when the battery is close to full, it will automatically reduce the AMP output, and will automatically shut down and enter trickle charging mode after the battery is fully charged, which can keep the battery fully charged without overcharging or damaging the battery. When the battery is low (battery voltage is below 52V), the golf cart battery charger will restart and charge again.
[7 Safety Functions & IP67 Waterproof] 36 volt golf cart battery charger is designed with safety in mind, it is designed with overcharge/overheat/overcurrent/overvoltage/reverse connection/short circuit/no load protection, so you can use it with confidence. 36v golf cart charger is fully potted inside to provide IP67 weatherproof rating, you don't have to worry that the charger will be damaged due to water, dust, or vibration, it's perfect for outdoor use.
[Intelligent Temperature Compensation & Superior Heat Dissipation] EZGO charger has intelligent temperature compensation function: one is to stop charging when the battery is overheated to protect the battery; the other is to automatically adjust the charging voltage according to the ambient temperature to achieve the best charging effect.A fan is installed on the top, and a large amount of air flows through the radiator, hich can effectively dissipate heat, so that the charger always stays cool.
[Visual Charging & Charging Time Control] EZGO 36v charger is designed with a three-color indicator light to display the charging status. Red/Green Flash:Waiting mode or no-Load; Red Flash: Low Charging(80%); Green Flash: Trickle Mode(≈ 100%); Green On: Fully Charged(100%). Golf cart charger is set with a maximum charging time (15 hours), when the charging time reaches 15 hours, the charger will automatically stop output to prevent overcharging.
[Compact & Durable Aluminum Body] 36v golf cart charger is well-made and made of die-cast aluminum, with a durable shell that can withstands the wear and tear of daily use and provides good heat dissipation. One of the outstanding features of the ezgo 36v charger is its compact and lightweight design, the entire body is made of lightweight die-cast aluminum, weighing only 3.2kg, which is very light and easy to carry, which is very suitable for golfers with limited storage space.
[More Excellent Design] 36 volt golf cart battery charger is equipped with 10ft power cable and 6ft charging cable, which can easily connect to the power outlet and the battery, and the cable is designed with thickened design, which can well carry the current required by the 36V battery; Strong protection function, with 100% full load aging test, and automotive-grade anti-vibration range. Reliable hardware protection, perfect charging strategy and voltage and current self-test protection.
[FCC and ETL Certified and 3-Year Warranty] 36v golf cart charger is safe and reliable. It not only applies PFC and LLC technology, but also passes FCC and ETL certification, you can rest assured to buy and use our golf battery charger. We provide a 3-year warranty for this golf cart charger. If you have any questions during use, please feel free to contact us.

Spot Welder Dent Puller Machine Body Repair Dent Removal Tools 6 Models Dent Puller Welder 110V 3800A Car Dent Puller Smaller Welding Spot Stud Welder Dent Repair Kit Dent Remover Tool For Car/Trucks

[Smaller Welding Spots & Stronger Welding] Dent puller welder is specially designed for repairing various dents on the car body (only for iron material).It adopts intelligent induction welding technology, the welding joints are extremely small,with low consumables consumption and no damage to the back metal coating or paint surface.Built-in E-type high-frequency transformer,3800A super-large current output, stable output,which makes the welding stronger.Single-sided welding thickness: 0.6-1.5mm.
[Multifunction- Welding/Puller Function] Spot welder dent puller is equipped with welding tongs and pullers, as well as a variety of welding accessories, etc.,with super high configuration. Through the welding tongs and puller, you can operate two functions of welding and pulling, which can helpe you reduce the time and energy for switching welding tongs and improve work efficiency. Dent puller welder are widely used in sheet metal repair, dent forming, body damage and other repair work.
[6 Welding Modes & Auto/Manual Welding] Spot welder dent puller adopts a new generation of microcomputer program control,which greatly improves the welding range and welding accuracy.6 welding modes are available,including Triangular meson pull,Round meson pull,OT meson pull,Wave line welding,Carbon rod to close the fire,Single-sided spot welding.Stud welder dent repair kit has auto welding and manual welding two modes can be switched at any time, easy to operate.
[Overheat Protection & Efficient Cooling] Dent puller has an overheat protection function, if it is overused, the high temperature alarm indicator will light up and the machine will stop working. When the transformer cools down, the alarm indicator will automatically go out and the machine will resume normal operation. Built-in high-efficiency radiator and the ventilation holes on the side of the body can help the machine dissipate heat quickly to meet your needs for long-term continuous work.
[Cold-Rolled Steel Body & Pure Copper Core Input/Output Cable] The body of the spot welder dent puller is made of high-quality cold-rolled steel, which has high strength/hardness, sturdy and durable, and has good wear resistance and corrosion resistance.The input/output cable of the dent puller welder are made of international pure copper welding wire, which is soft and not easy to break, not only generates little heat, but also saves energy and saves power.

DUOYI Digital Earth Ground Resistance Tester 0-2000 ohm Meter AC Ground Voltage Tester Quick Response Earth Resistance Tester Overload Protection Voltage Meter Tester with Tool Bag

[Earth Voltage/Resistance Tester] Resistance tester is powerful and can perform precise three-wire measurements or simple two-wire measurements. It can test earth resistance of various earth systems including power systems, electric equipments, lightning conductors as well as resistance value of low resistance conductor and AC voltage test, and widely used in measurement in electric power, post and telecommunications, railways, petroleum, chemical industry, communications and other sectors.
[Quick Response & Accurate Measurement] Digital grounding resistance meter adopts one-button fast measurement function, by pressing the "Test" button, the test result will appear in a few seconds: measuring earth resistance is about 5 seconds, measuring earth voltage is about 2 seconds, realising efficient work. Earth resistance measurement accuracy: ±2%rdg, earth voltage measurement accuracy: ±3%rdg.
[Multiple Gear Selections] Earth resistance tester provides resistance voltage gear switching, which can easily switch between voltage and resistance modes. Digital earth resistance tester has 3 resistance measurement ranges, which can accurately measure resistance up to 2000Ω, meeting the needs of many different occasions and achieving high-precision measurement. Resistance measurement range: 0-20Ω; 0-200Ω; 0-2000Ω. Earth voltage measurement range: 0-30V(AC).
[Overload Protection & Data Hold] In the ground resistance test mode, the resistance tester can withstand 300V AC within one minute, and in the earth voltage test mode, the resistance tester can withstand 200V AC within 10 seconds. The voltage and resistance overload protection makes your measurement safer. The resistance tester has a data retention function. Resistance tester with data hold function, press the "HLOD" key to lock the measured value, easy for you to view or record the test value.
[Battery Power Reminder & Led Light Indication] Ground resistance meter powered by 1.5V and 12V batteries, When the battery icon appears on the display, it means that the 12V battery needs to be replaced, otherwise, it means that the 12V battery is in good condition.In addition, when the red LED light off indicates insufficient 1.5V battery. When the LED green light on indicates normal connecting of lead and E,C terminals.If the green LED light is off,check the lead connecting E and C terminals.
[Thickened Shell & LED HD display] Resistance tester is made of high-quality ABS engineering plastic, withstands voltage, can safely withstand 500V AC within one minute, and has an insulation function. The shell is made of thickened material, making the whole machine thick and durable, and a protective cover design is added to protect the instrument from falling, dust, and moisture. The resistance tester uses a 31/2-digit high-definition LCD display, making readings more direct and convenient
[Packaging Details] We provide a 2-year warranty for the resistance tester. Resistance tester package contains:1Pc Resistance tester;2Pcs auxiliary earth bar;Testing wire:1pc red 15-meter testing wire; 1pc yellow 10-meter testing wire; 1pc green 5-meter testing wire; Simple testing wire: 1pc red 1.6-meter testing wire; 1pc green 1.6-meter testing wire; 6Pcs 1.5V(R6AA) battery; 1Pc 12V(23A) battery; 1Pc tool bag; 1Pc instruction manual

Olive Puller Not Damage The Pipe Olive Remover Ferrule Puller Corrosion-Resistant Compression Ring Removal Tool Suitable for Brass Pipes with Diameters of NPT 1/2" & NPT 3/4" Ferrule Removal Tool

[Olive Puller That Will Not Damage The Pipe] This DUOYI olive puller is an ideal tool for taking out olives.Without damaging the pipe,puller utilises the compression fitting locking nut to remove the olives which used or damaged from the copper piping.
[Suitable For Brass Pipes With Diameters Of NPT 1/2 Inch & NPT 3/4 Inches] The olive puller can work on air-conditioning pipes,and is suitable for brass pipes with diameters of NPT 1/2 Inch & NPT 3/4 Inches.
[Abrasion-Resistant & Corrosion-Resistant Solid Brass] The DUOYI ferrule puller is made of high-quality solid brass,which not only has high strength and high hardness,but also has good wear and corrosion resistance. In addition,the olive puller has a smooth surface High,with high-grade texture,and long service life,can provide you with long-term service.
[Easy To Use] Olive ring removal tool is easy to operate,and you can work without reading the manual or with the help of other tools,reducing work time and energy.
[Suitable for various tasks] Compression ring removal tool is suitable for various tasks.It can increase torque and remove olives more easily.It provides a quick and reliable remedy for removing most olives.
[Warm Reminder] The threads on the ferrule puller are tapered pipe thread, which is not copatable for straight thread on compression fittings.

DUOYI OBD2 Breakout Box Can Bus Breakout Box with LED Light Auto OBDII Protocol Detector 16-Pin OBD2 Breaker Box Automotive Electrical Diagnostic Tools Can Bus Analyzer with 35inch Cable

[OBD2 breakout box With Pass-Through Feature] OBD2 breakout box is a car diagnostic tool with pass-through function, which can connects inline between your OBDII diagnostic port and your ODB 2 reader or other ODB 2 device for effective and safe monitoring signals of protocol, power and grounds, and you can also use it to charge scanning tools via the ODB II port. Additionally, the breakout box can also be connected to a multimeter or oscilloscope for further detection of unconfirmed signals.
[Detect CAN bus/K-line/L-line/PWM Protocol Line] OBD2 breakout box works great for communication line diagnoses, which not only helps you see the OBD signals as they are operational, but also detect some diesel signals, such as CAN bus, K-line, L-line and PWM protocol line. You can place this OBD2 breakout box between your diagnostic tool and your vehicle, which makes bus can and K-line diagnostics easier.
[LED Indicator] Breakout box is designed with LED indicators that you quick visual indicators of the state of each data line plus power and ground via led lights.When vehicle body is properly grounded,Green LED of pins 4 and 5 will be on;when the power supply is normal,Red LED of pin 16 will be on;when the decoder communicates with the vehicle,pin 2 or 6/7/10/14/ 15 has signal waveform.Breakout box makes it super easy to test for good connections at the pins without dealing with finicky probes.
[16 pins OBDII Interface & 90cm Cable] OBD interface of the detector adopts a 16 pins design,the input jack layout fully emulates the 16-pin layout of the OBDⅡ interface,allowing more tests to be performed quickly and intuitively,you can have quick access to all 16 pin connections during vehicle service and diagnostics.You do not need to directly operate the pins of the OBDII interface.The cable length of the OBDII data line detector is 90 cm,which makes the device connection more convenient.
[16 Standard 4mm Banana Sockets & Male and Female Connectors] The built-in input jack of the OBD2 breakout box can connect any type of 4mm banana plug, you can connect a multimeter or oscilloscope to any jack to check voltages or signal levels. OBD2 breakout box has male and female connectors for connecting the car OBDII system and the scan tool, so that after you connect the scan tool, you can also detect each pin on the connector through the breakout box.
[Note] Do not place a jumper between the power pin 16 and ground pins 4 and 5; Do not use this tool to power up a load devices exceeding 1 amp; Do not jumper pins together without understanding the circuits.

DUOYI Pneumatic Injector Puller 21pcs Diesel Injector Puller Set Labor-Saving Diesel Injector Extractor Tool for Diesel Engines Injector Puller Removal Set with Pneumatic Hammer,19pcs Adaptors

[Efficient & Labor Saving Pneumatic Injector Puller] Pneumatic injector puller is different from most manual diesel injector extractor tools, the operators do not need to use an inertia hammers or mechanical extractors, and just need to connect the tool to an air supply (up to 5-8 bar) and then use the air pressure drive to quickly and easily remove stubborn, rusty, or stuck diesel injectors, effectively reducing the time and effort required for manual removal.
[Working Principle] Pneumatic injector puller operates effectively in the range of 5 - 8bar. After connecting the air source, the pneumatic injector puller will hammer the injector up and down at high speed to achieve easy and effective removal, which not only effectively reduces the time and effort required by the operator, but also greatly reduces the risk of damaging the injector or the engine. (Note: When the injector is out of its seat, please reduce the air pressure)
[Widely Applicable - Support 99% of Injectors] Diesel injector puller set is designed to extract 99% of the diesel injectors in the market, it covers a wide range of injector systems and is compatible with a variety of injectors in the market, such as compatible with Bosch/Delphi/Denso/Siemens diesel injectors, which can satisfy the needs of a variety of engine models.
[1 x Enlarged Pneumatic Hammer & 1 x Air Inlet Hose] The pneumatic injector puller is equipped with an enlarged pneumatic hammer with an impact frequency of up to 2500 times/pm, which is more powerful and works more efficiently. Diesel injector extractor tool kit also contains a air inlet hose with an adjustable switch that allows the operator to control the air intake by adjusting the switch to adjust the vibration speed of the pneumatic hammer.
[19 Different Sizes of Adapters] Pneumatic injector puller comes with various size adapters to suit various injector sizes, including: M20*1.0, M18*0.75, M17*1.0; M8*1.25, M8*1.0, M8*1.5; M14*1.5, M16*1.5, M18*1.5, M20*1.5, M22*1.5; M25*0.5, M25*1.0; M26*0.75, M29*1.0, M31*0.75; M27*0.75, M27*1.0.
[High-Quality Material & Easy to Store] Pneumatic injector puller is made of high-quality chrome vanadium steel, which not only has high hardness/strength, but also has good abrasion/corrosion resistance and long service life. The diesel injector puller tool is equipped with a thickened anti-collision suitcase with built-in precise-sized slots, so that the tool can be neatly placed in the box after each use, which is not only convenient for storage, but also easy to carry.
[2-Year Warranty] We provide a 2-year warranty for the pneumatic injector puller. The kit includes: 1*pneumatic hammer, 1*injector extractor extender, 3*puller hooks, 19*adapters. If you have any questions before placing an order or during use, please feel free to contact us, and we will reply to you in time and do our best to help you solve the problem.

Brake Master Cylinder Bleeder Kit 12Pcs Brake Bleeder Adapter with Japanese Quick Connector Master Cylinder Adapter Set Brake Pressure Bleeder Adapter Kit Fit for Toyota/Ford Master Cylinder Adapter

[12 Pieces Brake Master Cylinder Adapter Kit with Quick Connectors] Compared with most master cylinder bleeder kit on the market, our master cylinder bleeder kit adds a Japanese quick connector for wider applicability and better connection between the adapter and air hose. The kit also includes two rectangular adapters and 10 round adapters which can be used with brake fluid bleeder and brake fluid changer, which can help you to easily remove the fluid and refill the fluid into the whole brake.
[2 Rectangular Adapters & 10 Round Adapters Specifications] Brake master cylinder bleeder kit contains two rectangular adapters, one compatible with Chrysler/GM vehicles, one compatible with Toyota/Lexus vehicles. The ten round adapters have the following internal diameter sizes: 29mm, 34.5mm, 42mm, 43.5mm, 47mm, 49.5mm, 50.7mm, 56mm, and 74mm. The variety of sizes allows you to make a precise and secure connection between the adapter and the brake fluid bleeders.
[Widely Applicable] The 12pcs brake bleeder adapter for near all domestic and import cars, such as compatible with Honda/Chrysler/Dodge/Jeep/Buick, and compatible with Cadillac/Chevrolet/Nissan/Toyota/Lexus, etc,the applicability is very wide, providing you with more choices.
[Corrosion Resistant & good airtightness] The pressure brake bleeder adapters is made of high-quality PPC material, which is extremely durable, not easy to break or deform, and has good airtightness, which prevents leakage when you replace and fill the fluid for the brake system. The surface of the aluminum alloy adapter is chrome-plated and blue aluminum oxidation treatment to improve the strength and hardness, and at the same time endow it with good oxidation resistance and corrosion resistance
[Humanized Design - Easy to Carry/Organize] Brake master cylinder bleeder kit comes with a high-quality heavy-duty plastic case, and the handle design allows you to easily take it from one place to another. In addition, the master cylinder bleeder kit has the code of each adapter printed inside, so you can quickly organise it according to the code after each use, and at the same time, you can quickly find a suitable adapter according to the codes.

24V Battery Charger 20A 24V Forklift Battery Charger,Fully-Auto Forklift Charger 24 Volt Battery Charger,with 7 Charging Protections 24 Volt Charger,24V Charger For 100-200AH Lead Acid Battery Charger

[20A Quick Charging Golf Cart/Forklift Charger] Our forklift battery charger adopts advanced 4-stage smart charging technology with efficiency up to 90%, with four charging modes: constant voltage/constant current/trickle/power off. When the battery is close to full charging, it will automatically turn into a trickle mode. After full charging, it will automatically shut down to prevent overcharge. Suitable for a 24V forklift/floor washers/sightseeing car/golf cars 100AH-200AH lead-acid battery.
[HD LCD Display - View Charging & Fault Status] 24 volt battery charger is designed with a HD LCD display. During charging, the display will alternately show the voltage and current, when the battery is fully charged, the charger will automatically stop the output to prevent over-charging, and the display will show "FULL" at this time. When the 24v charger has no load or high -voltage/undercharging,the display will show the corresponding fault code to prompt the user and stop the use of the fan.
[Multiple Intelligent Protection to Ensure Safe Charging] Our forklift charger is an advanced as well as practical battery charger for everyday use.It has been installed with overvoltage,overcurrent and overheat protection to protect the circuit,when the grid voltage,output current and temperature inside the machine exceeds the set standard,the machine will stop working.It can also provide reverse polarity/short circuit/undervoltage protection to ensure that you can charge safely anytime, anywhere.
[Efficient Heat Dissipation & Charging Time Control] Built-in high-efficiency intelligent cooling fan, which is always running when charging, and can effectively cool the machine to make it work properly. 24v forklift battery charger can automatically adjust the charging current/voltage, and set the maximum charging time (15 hours). When the battery continues to be full for 15 hours, 24v charger will stop the output, effectively protect the battery,and gives you peace of mind charging overnight.
[High Quality Aluminum Alloy Shell & 89ft Pure Copper Core Cable] 24 volt battery charger shell is made of high -quality aluminum alloy material, which has the characteristics of high temperature resistance, corrosion resistance, rust resistance, and drop, and has good heat dissipation, safer to use and longer life. The 24v charger is equipped with a 48 -inch power cable and a 41 -inch long charging cable, made of standard pure copper core, strong and durable, stable current and voltage output.
[FCC and ETL Certified - Safe and Reliable] Our 24v forklift battery charger has passed FCC and ETL certification. It has a comprehensive charging strategy and reliable hardware protection, designed for charging for lead-acid batteries. 24v forklift charger equipped with the Anderson connector, and a spare plug connector and two terminal pins. When the Anderson connector is not suitable for your plug, you can achieve effective connection through a spare plug connector and two terminal pins.
[3-Year Warranty] We offer a 3-year warranty for this forklift battery charger. The input voltage of this 24 volt battery charger is AC 100-240V, the rated voltage is 24V, the fixed power is 600W, the maximum output voltage is 29.4V, and the maximum output current is 20A. If you have any questions about the 24 volt battery charger before ordering or during use, please feel free to contact us.

DUOYI Terminal Removal Tool Kit 23 Pcs, Terminal Ejector Kit with Stainless Steel Tips, Ergonomic Rubber Handle and Carrying Case, Universal Terminal Release Kit Replaces The Proprietary Kit

[UNIVERSAL PIN EXTRACTOR TOOL SET] ---23 piece Terminal EJector Kit Tool, suitable for a variety of manufacturers and models -American domestic, European and Japanese cars and trucks.
[GOOD HELPER FOR REMOVING BARBED TERMINALS] --- not damage the vehicle wiring harness,long handle protect technician's hands, easily remove terminals from electrical connectors. Make your job easier and faster.
[STAINLESS STEEL PRECISION TIP AND NON-SLIP RUBBER HANDLE] ---the tip is made of high-strength stainless steel for durability and will not bend or break when used in large quantities(A few tips are made of manganese steel). Ergonomic rubber handle for comfortable use and non-slip.
[REPLACE EXPENSIVE KIT] --- Avoid a dedicated kit that costs 10x and save time and money with this cost-effective Wire Terminal removal tool.
[HEAVY-DUTY CARRYING CASE] ---packed in heavy duty blow molded suitcase for easy transportation and quick organization. Each handle is marked with a number on and next to it for quick reference to the chart.

DUOYI Timing Light Automotive Engine Timing Lights 12V Ignition Timing Light with Strobe Lamp Inductive Timing Tool Kit Reverse Polarity/Overload Protection Ignition Timing Tool with 4.5ft Lead

[Quickly Detect/adjust ignition timing Light] Timing light automotive is specially designed to detect the ignition timing scale on the engine flywheel or pulley. When the timing changes due to ignition system failure or changes in car components, the timing can be reset/adjusted by the flash on the timing light. Able to detect the automotive knock suppression control system and vacuum advance angle control system, and change the advance angle as the speed changes.
[Wide Application] Timing lights is designed to re-timing your car's ignition so that your car has higher fuel efficiency to produce more power. Engine timing light is suitable for cars, motorcycles, boats and all two-stroke or four-stroke gasoline engines. Its working voltage is 12V and you can be easily operated on a 12V ignition system.
[High Impact ABS Shell & Strong Flash] Timing light shell is made of high-quality ABS material, which has good impact resistance and wear resistance and can withstand daily use. Ignition timing light use special bulbs that are much brighter than ordinary bulbs and can produce a very strong flash. The timing light not only has bright light, but also has a large illumination area, making it easy to observe the timing marks on the engine under strong light or during the day.
[Positive/ Negative Power Clip & High Voltage Wire induction clamp] The power clip of the timing lights has a strong bite and holds firmly, and the wires connected to the power clip can be torn apart separately to expand the range of movement. In addition, the wires are wrapped in insulating rubber to prevent accidental leakage/electric shock. The high-voltage wire induction clamp is a slide-open style, which allows for an easier and safer connection than pinch-open induction clamp.
[4.5ft Lead Length & Anti-Slip Handle] Automotive timing light has a long enough lead to reach other engine parts, saying goodbye to the trouble of limited range of movement caused by too short wires, and also helps you see the timing marks clearly. The ergonomically designed handle of the timing light automotive is comfortable and lightweight, weighing only 0.4kg, and can be grasped with one hand, making it easy and convenient to operate.
[Multiple Protection Functions] Timing lights has reverse polarity protection and overload protection functions, which effectively protects the battery and equipment safety during operation. Timing light is easy to operate, firstly connect the power clip to the 12V power supply, the red clip connects to the positive terminal and the black clip connects to the negative terminal, then connect the high pressure wire induction clamp to the high pressure wire of the cylinder to work normally.

DUOYI Exhaust Back Pressure Tester 2.5" HD Pressure Gauge Exhaust Back Pressure Gauge Kit with 6ft Hose Oil Pressure Gauge Shockproof Rubber Cover Exhaust Pressure Gauge,Car Exhaust Pressure Tester

[Professional Diagnosis of Exhaust Blockage Fault] Exhaust back pressure gauge tester is designed to diagnose where back pressure problems in the exhaust system lie,easily helping you diagnose whether your converter or muffler is clogged,preventing engine sluggish performance,reduced acceleration and overheating,providing you with a smooth and safe drive.Exhaust back pressure tester provides an effective way for car experts,car dealers or DIY mechanics to determine faults accurately and quickly.
[Simple And Practical Exhaust Back Pressure Gauge Kit] Exhaust pressure tester is tested at idle speed and 2500 rpm.At idle,read the lower scale on the gauge.It should not over 1.25PSI (0.09bar),or be in the red zone.If it is,stop the engine and find the location of the blockage and repair and unblock it.If the reading at idle is not red zone on the lower scale,rev-up the engine to 2500 RPM.If the reading is in red zone 3PSI,(.21bar) there is is a blockage in the exhaust system.
[HD Dual Scale Pressure Gauge & Shockproof rubber Cover] Equipped with a 2.5" HD pressure gauge designed with high visibility PSI/Bar pressure units to help users read test data quickly and accurately.In addition,the multi-coloured bars are designed to help you quickly determine if there is a problem with the exhaust system (green is a good condition,red is a bad condition) The gauge head is equipped with an anti-vibration rubber protective cover for real-time protection,reducing crash damage.
[6ft abrasion/heat resistant hose & M12 and M18 thread adapters] Exhaust back pressure tester hose length is made of high quality silicone material with good abrasion and high temperature resistance (≤300°C) and the 6ft hose length allows the user to test directly from the driver's seat, making it easy and fast.In addition,complete with M12 and M18 thread adapters,you can connect the exhaust pressure gauge tester to the exhaust system port.
[3 years warranty&Warm Tips] Instrument is provided with 3 years free warranty. To ensure accurate test results,the pressure gauge has been checked and calibrated.If the pressure gauge pointer is not at the initial state "0",it may have been affected during transportation.You can manually remove the cover and adjust the pointer to "0",this will not affect the accuracy of the test results.

6Pcs Wiper Arm Puller Doesn't Damage The Wiper Arm Removal Tool Strong Structure Windshield Wiper Arm Removal Tool with Toolbox Battery Terminal Puller Compatible with VW/BMW/Ford/Honda/Porsche

[Widely Applicable] Wiper arm puller compatible with Audi A3, A4, A5, A6, Q7. Compatible with VW Lupo/Polo/Touareg. Compatible with Honda/Jazz/CRV/FRV and others. Compatible with Opel Astra G/Zaphira B/Corsa C/Vectra C.
[Widely Applicable] Wiper arm removal tool is also compatible with VW Golf/Passat until 2005. Compatible with BMW 5 series E39 and 7 series E38 until 2005. Compatible with Ford Galaxy Seat Alhambra Mercedes A and B class from 2005. Compatible with Porsche Cayenne and other SUV.
[Remove Car Wiper/Battery] Windshield wiper arm removal tool is mainly used for car wiper arm removal and replacement. It can easily remove and replace some tight wiper arms. puller tool is not only easy to use, but also will not damage the glass, wipers,shaft and will not scratch the paint, etc.,which is a good helper for professional disassembly of the wiper arm. In addition,wiper arm puller can also remove the battery terminal clips without damaging the battery poles.
[Strong Structure & Creative Design] Windshield wiper arm removal tool has a sturdy construction and high thread precision,it's made of high-hardness metal, it's sturdy and durable, giving you the perfect pull to get the job done.In addition,the main shaft end is designed with a brass cover,which can effectively prevent damage to the windshield wiper arm,which is a good helper for auto maintenance workers.
[Easy To Store & Carry] Equipped with a heavy duty high quality blow molding box, it can be neatly and orderly placed in the box after each use, not only easy to carry, but also prevents tools from being lost and messy.

DUOYI Spark Plug Tester Dual Holes Spark Tester Working Frequency 0-6000rpm Spark Plug Tool for 12V Gasoline Vehicles Ignition Coil Tester with A Protective Cover, Spark Plug Not Included

[Spark Plug Tester For Small Engines Test Spark Plug Performance] Spark tester small engine mainly tests the performance of the spark plug by simulating the ignition of the car, thereby deciding whether to replace the spark plug.
[Dual Holes Spark Plug Tester] In order to be able to see more clearly whether the performance of the spark plug is good, the spark plug tester has a dual-hole test function. Just put a brand-new spark plug and a spark plug to be tested into the test hole respectively, and the performance of the spark plug can be tested quickly and accurately. Test hole inner size: 12mm.
[Adjustable Working Frequency Spark Tester] The working frequency of the small engine spark tester is 0-6000rpm. Its working frequency can be adjusted through the knob, which is very convenient.
[Ignition Tester For 12V Gasoline Vehicles Car Spark Plugs] This spark plug tester is suitable for most 12v gasoline car spark plugs, suitable for 14MM and 16MM spark plugs. Cannot be used for lawn mowers and chainsaws. If you are not sure whether it is suitable for your spark plug, please contact us before buying.
[Coil Tester With A Protective Cover] In order to make the process of use safer, the spark tester automotive comes with a transparent protective cover.

Fuel Injector Cleaner Machine 4-Cylinder Ultrasonic Fuel Injector Tester Cleaner With 9 Test Modes Fuel Injector Cleaner kit GDI/EFI/FSI Fuel Injector Cleaner Tool For Petrol Motorcycle Automotive

[Diagnosis & Cleaning Integrated Multi-Function Fuel Injector Equipment] Fuel injector cleaner is a 4 cylinder auto injector testing machine that cleans/tests most petrol cars and motorcycles,which can simulate various working conditions of the engine,and clean/inspect the fuel injectors,such as ultrasonic cleaning,fuel injection volume uniformity test,tightness test,atomization observation.It is very suitable for removing carbon deposits from the fuel system and is easy to operate.
[Ultrasonic Powerful Cleaning Technology & Electronic Pressure Regulating Control Technology] Fuel injector cleaner adopts ultrasonic powerful cleaning technology,which has strong cleaning ability.It can test and clean 4 fuel injectors at one time,and support reverse cleaning & on-vehicle cleaning.Plus,fuel injector tester can also be used on 6 cylinders,twice tests will do. Using electronic pressure regulation control technology, the oil pressure is stable and the adjustable range is wide.
[Tightness & Fuel Injection Volume & Uniformity Inspection] The diagnostic functions include detecting the uniformity of the fuel injection volume of each injector,the tightness and dripping of the fuel injector under high pressure,fuel injection volume of the fuel injection nozzle under specific working conditions,and the observation the spray atomization of nozzle.Within the allowable adjustment range,the test time/working frequency/injection times of the injector can be adjusted arbitrarily.
[Intuitive Display&Easy To Use] Glass measuring cylinder of the fuel injector cleaner kit adopts high-definition digital tube display,which can clearly observe the state of the injector test,and the operation is clear and easy to learn.Provides a visual display of the oil tank liquid level,and can observe the current amount of test agent(testing agent can be recycled).Device is also designed with bright background lights,you can clearly see the various states of the injector when it is working.
[9 Test Modes & Widely Applicable] Fuel injector cleaner machine provides nine test functions, such as idle speed/medium speed/high speed/acceleration/variable speed test,and leak/idle speed spray volume/high speed spray volume test,etc.Fuel injector tester is suitable for all EGI vehicles,easily remove the attachments and internal blockages on the injectors,and helps solve vehicle problems such as unstable idling,increased fuel consumption,weak acceleration,and difficult starting.
[Note] To avoid leakage of the glass tube, please do not pour cleaning fluid into the glass tube.

Fuel Injector Cleaner Kit Universal Fuel Injector Tester And Cleaner Kit,8 Pulse Modes Fuel Injector Cleaning Kit,DIY Fuel Injector Cleaner Tool with 6 Size Cleaning Adapters,12V/5V Output Power

[Widely Applicable to 12V Injector Cleaning Tester kit] Upgraded fuel injector cleaner kit is suitable for 12V and below injectors of most vehicles, including but not limited to: MPFI, SPFI, TBI, CFI, L-JET, LPG, EFI injectors, motorcycle injectors, K-Jetronic, FSI, coil-type direct injectors, Peak & Hold GDI, etc., which can help you diagnose injector problems such as sticking,leaking,clogged,damaged or burnt injector,and helps to identify good or bad injector with engine off.
[6 Sizes of Cleaning Adapters Available] Fuel injector cleaning kit is suitable for most 12V vehicles, including cars, motorcycles, ATVs, boats, etc. Equipped with 6 sizes of injector adapters, which is one of the most complete kits on the market with adapters, and compatible with most car and motorcycle fuel injectors. We also provide a special adapters (with threaded holes),which compatible for BMW N series, such as N14/N18/N20/N26/N53/N54/N55/N63/S63, which is more targeted and more adaptable
[Simultaneous testing/cleaning of 2 injectors] Fuel injector tester and cleaner kit is designed with a four-wire dual channel design, compared with other injector testers on the market, we have added an extra pair of pulse output terminal test wires. You can test or clean two injectors or one injector at a time, which greatly improves the work efficiency and helps you quickly and effectively remove carbon deposits in the injector and solve problems such as injector leakage and loose closure.
[8 Pulse Modes with Mode Lock Function] The fuel injector tester kit is designed with 8 pulse modes, which are composed of two output voltage levels and 4 pulse signal output modes(Short/ Medium/ Long/ Continuous pulse modes + High/Low(12V/5V) power drive modes). You can choose any mode according to your needs, and the LCD display is designed to clearly display the currently selected mode at a glance.
[Output Short Circuit Protection & Reverse Polarity Protection] Fuel injector cleaner kit has a new output short circuit protection function.If the injector is damaged or the pulse output terminal is short-circuited,the indicator for output status dims.Also,fuel injector cleaner tool can be used to determine whether the injector coil is short-circuited,it also includes a power input reverse connection protection function.In addition,it can be modified for relay testing or solenoid valve testing.
[52 Inch Extra Long Cable] Fuel injector cleaning kit has a power cable up to 33.5 inches long and a test lead up to 18.5 inches long, made of high-quality silicone, resistant to low/high temperatures, anti-aging, and has long service life. Injector cleaner tool uses the 12V battery on the vehicle or an external DC 12V (recommended at least 1.5A) power adapter as the power supply, it can be used with any fuel pressure tester (Note : only for gasoline engines, not for diesel engines).
[Packaging Details & 3-Year Maintenance Service] Fuel injector tester cleaner tool kit includes: 1*fuel injector tester cleaner with 2 pairs of pulse output terminals; 1*power cord with 1 pair of battery clips; 6*cleaning adapter; 1*English manual; 1*Portable handbag. We provide three-year maintenance service for the fuel injector tester kit. For damage caused by non -human factors, we promise to replace it for free. If you have any questions, please contact us at any time.

DUOYI Brake Spring Tool, 5081 S-Cam Air Brake Tools Replace for Semi Trucks Brakes Shoes, Brake Tools for Heavy Duty Trucks, Tractors & Trailers, Steel Mechanic Tool for Automotive Brake Repair

[Air Brake Spring Tool] It is safer and easier to replace the heavy duty tractors and trailers brake shoes, without the need for screwdrivers or tool pliers to remove the brake shoes.
[Brake Spring Tool is Easy to Operate] Just hook the tab to the fixed spring ring, press the bar end down on the shaft, hold the handle and push it down and inward until the spring ring is firmly fixed on the brake shoe.
[Principle of Use of Spring Tools] The end of this spring tool is in a "v"-shaped structure, which effectively utilizes the principle of leverage and is against the axle to separate the spring ring from the brake shoe more safely and easily.
[Brake Adjustment Tool is Made of High-quality Steel] Brake adjustment tool is made of high-quality steel, with excellent wear and corrosion resistance, can provide you with long-term service.
[Note] This tool is used for heavy machinery vehicles such as tractors and trailers. Pay attention to safety during operation and use.

DUOYI FAQs

Yes, DUOYI is a legitmate brand on Amazon. After conducting a comprehensive analysis of 1,711 customer reviews for DUOYI products on Amazon, we have determined its average rating. Offering great value and satisfying quality, DUOYI has achieved a respectable rating of 4.4 from many customers, showing that its products meet customer expectations. While there may have been minor issues reported occasionally, overall, it is safe to make purchases from DUOYI on Amazon.

Amazon has strict policies and safety measures in place that ensure only legitimate sellers and products are allowed on their platform. It also provides a secure payment gateway and offers buyer protection, ensuring your transaction is safe. In the unlikely event that there's an issue with your purchase, Amazon's customer service and return policies are designed to protect your interests.

If you're interested in DUOYI and want to find more DUOYI products, you can follow the steps below:

  1. Go back to FindThisBest's homepage.
  2. Type DUOYI in the search box and hit Enter to see the search results.
  3. Find and click the correct DUOYI to go to the new page.
  4. Select the products you want in the DUOYI buying guide, and take a glance at the prices and features of the products.
  5. View the products interest you on Amazon to read the customer reviews and check the ratings. Besides, you can hit the "brand" to find more DUOYI products.

We analyze millions of DUOYI products reviews and customer reviews to recommend the best picks for most consumers. We have a professional team with decades of experience to test the products, which can help ensure that we provide our readers with accurate advice and best recommendations.

There are usually 5 to 10 products in a brand buying guide. We found 183 DUOYI products for sale, 18 of which were analyzed in detail and recommended to customers.

  1. Go to the DUOYI page.
  2. Select the product you want in the DUOYI buying guide, and then view the product on Amazon. For example, if you are interested in the top 1 product Power Circuit Probe Tester 6V-24V DC Test Light Sh..., you can view it on Amazon page.
  3. Place your order on Amazon.

Our mission is to provide you with the most up-to-date and objective information about the DUOYI products, helping you make more informed buying decisions. We recommend best choices of the products from the DUOYI brand, helping you make better shopping choices with less time and energy.