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When purchasing a product, price is the consumer's primary concern. At present, WESTOBiG has 26 products for sale. WESTOBiG products range in price from $19.99 to $278.71, and the average price of all the products is about $76.08.

We found that most of the WESTOBiG products are manufactured by FNIRSI, WESTOBIG-FNIRSI, and FNIRSI-WESTOBIG. The manufacturers provide WESTOBiG with a steady supply of products, and they have a good cooperative relationship with each other.

You can confidently purchase WESTOBiG products from the seller WESTO GIANT. The brand holds an average rating of 4.72, testifying to its excellent reputation.

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Last Updated: Jan 10, 2026

【FNRSI 2C53P Plus Upgraded with Carrying CASE】 3in1 Oscilloscope/Multimeter/DDS Signal Generator Tablet Touch Screen Portable Digital Automotive Oscilloscope 2 Channel 50MHz Bandwidth 250Ms/S Counts

[3in1] Upgraded from 2C23T, FNIRSI 2C53P has combined the functions of 2 channels oscilloscope, digital multimeter and signal generator, but also highly improved its performances in all aspects.
[Oscilloscope ] FPGA+MCU+ADC hardware architecture, protects it from overheat and ensures strong capture function. Sampling rate 250MS/s, bandwidth 50Mhz and a built-in high-voltage protection module. Maximum voltage ±400V; supports waveform screenshots.
[Multimeter Mode] 4 and a half digit 19999 Counts. It could measure both AC and DC voltage, measure the current, capacitance, resistance, diode, continuity, and temperature, etc.
[DDS Signal Generator Mode] Output 12 kinds of function signals such as sine, square, triangle, full, half, noise, and DC etc. The maximum output 10MHz. Adjustable frequency, amplitude, and duty cycle.
[Accurate Analysis] Excellent analyzation function. It has afterglow, FFT spectrum analysis, cursor measurement, LISSAJOUS graphics display, etc., displaying and analyzing the signal frequency ingredients, and helping you obtain the accuracy of analysis
[Large Capacity Battery] It is 4.3-inch IPS touchscreen tablet with 480*272 ultra high resolution, easy for users to operate. The 4000mAh built-in battery allows you to use it for 4 hours atfer fully charged

FNRSI Battery Spot Welder, 5000m Portable Handheld Spot Welder Double Pulse 4 Combination Gears Adjustable Spot Welding 0.1MM-0.25MM for Iron/Stainless Steel/Nickel Strip /18650 Battery Pack

[Double Pulses Welding] Two pulses are released simultaneously in welding-one cleans the oxide layer on welderment, reducing the spark spattering, and the other keeps on welding to ensure the consistency of energy output and improvement o f welding stability
[A-Grade Battery& 2in1] The spot welder is equipped with 2 high rate power A-Grade batteries (5000mAH large capacity) . You could use it to weld thousands of spots after fully charged. And you could also use it as a power bank
[Adjustable Output& Wide Application] 4 combination gear adjustment. The welding thickness is 0.1-0.25mm. It can be used to weld nickel sheet, iron sheet, statinless steel sheet, aluminum sheet
[Brass Spot Welding Pen ] The head of welding pen is detachable. You don`t need to replace the whole welding pen if the head is damged. And the welding pen is made of brass, solid and endurable!
[Colorful Screen] With 1.8 inch LCD colorful screen, shows you the welding status, the battery voltage, temperature, preheat time, pulse time, interval time, charging voltage/current/power and over temperature/low voltage/short circuit warning indicator

FNRSI LC1020E LCR Meter, 19,999 Counts Resistor Inductor Capacitor Tester, Auto Component Detect, Measures ESR/Q/D/θ/X, 2.8” Color TFT, Dual Parameter Display, Sorting & Open/Short Calibration

[All-in-One Component Analyzer] Quickly and accurately identify and measure a wide range of electronic components. This versatile meter tests capacitors (LCR), resistors, inductors, diodes, transistors (NPN/PNP), MOSFETs, and more, making it an essential tool for hobbyists and professionals.
[Large Color Display & Intuitive Operation] Features a clear 2.4-inch TFT color screen that presents measurement results, component graphics, and pinout diagrams vividly. The user-friendly interface makes component identification and verification fast and foolproof, even for beginners.
[Dual Ranging Modes for Precision] Switch between Automatic and Manual ranging modes to suit your needs. Get quick readings automatically, or use manual mode to lock a specific range for more stable and precise measurements on components with unknown or fluctuating values.
[Portable & Ready to Use] Powered by a built-in battery for cordless convenience. The complete kit comes with test leads, a 3-pin SMD tweezers clip for tiny surface-mount components, and a user manual, providing everything you need to start testing right out of the box.
[Saves Time & Prevents Circuit Errors] Stop guessing component values and prevent project failures. The FNIRSI LC1020E helps you sort through unmarked parts, verify new components, and troubleshoot faulty ones with high reliability, saving you valuable time and money on your electronics projects.

【FNRSI Upgraded 2C53T with 2 P6100 Probe】 3In1 Oscilloscope/Multimeter/DDS Signal Generator 50MHz Bandwidth 250MS Sampling Rate 20000 Count RMS for Voltage, Current, Capacitor, Resistor, Diode

[LATEST VERSION OF FNIRSI FAMILY] Among all the combined 3in1 oscilloscopes of FNIRSI family, the 2C53T is the newest and most advanced version. It has upgraded from 2C23t and has not only improved its bandwith from 10Mhz to 50Mhz, but also improved the sampling rate from 50MS/s to 250MS/s.
[DUAL CHANNEL OSCILLOSCOPE MODE] 50 MHz bandwidth, 250 MSa/s sampling rate, 1 Kpts record depth, automatic measurement function, vertical sensitivity 10mV/div-10V/div. The FNIRSI 2C53T supports peak voltage measurements up to ±400V and also supports waveform image storage and export.
[4.5-Digit 19999 COUNTS DIGITAL MULTIMETER MODE] The multimeter mode is good enough for professionals. It offers 4.5 digits with 19999 counts true RMS, supporting AC/DC voltage and current measurements, as well as capacitance, resistance, diode, and continuity measurements. AC Voltage: 0-750 V, DC Voltage: 0-999.9 V, DC/AC Current: 0-9.999 A, Resistance: 0-19.99 MΩ, Capacitance: 0-99.99 mF.
[DDS SIGNAL GENERATOR MODE] The built-in DDS function signal generator can output 13 types of function signals, with a maximum output frequency of 50KHz and a step size of 1Hz. The output frequency, amplitude, and duty cycle are adjustable. It supports advanced functions such as XY mode, cursor measurement, persistence measurement, mathematical operations, etc., making it easy to capture abnormal signals.
[EXQUISITE DESIGN WITH LARGE CAPACITY BATTERY] The 2C53T adopts FPGA+MCU+ADC hardware architecture, built-in high-voltage protection module, adopts 2.8 inch LCD display, built-in 3000mAh battery. It can be used for 6 hours after fully charged.

【FNRSI Upgraded 2in1 DSO-510 Oscilloscope with 10X Probe】Digital Portable Oscilloscope/DDS Signal Generator Automotive 2.8 inch TFT, 10MHz Bandwidth, 48MS/s Sampling Rate, Auto Trigger Function

[UPGRADED VERSION OF DSO153] FNIRSI DSO510 is slightly more expensive than the previous DSO153, but it was equipped with higher functionalities. It is not only upgraded to 10MHz Bandwidth, 48 MS/s Sampling Rate, , 50ns-20 S time base range, but with the 10X prode comes with the package, voltages up to 400V can be measured.                                           .
[2 IN1 DDS SIGNAL GENERATOR] FNIRSI DSO153 is not only an digital oscilloscope, but it also has the functionality of signal generator combined. It could output and display 13 different waveforms including sine, square, triangle, full, half, noise, and DC,etc, and the maximum waveform output frequency is up to 50KHz. It can be used freely for both periodic analog signals and non periodic digital signals.                                           .
[QUICK MEASUREMENT] With one-key AUTO setting of all parameters, it can quick measure waveform. Your working efficiency would be highly improved. Only need to long press the AUTO button, the baseline would be quickly calibrated.                                           .  
[FASHIONABLE DESIGN] Testing tools need to be cooler than before. This is the concept we live up to when we designed our product.The FNIRSI DSO153 Oscilloscope is equipped with built-in 1000mAH battery. It could continually work for 4 hours after fully charged. You could use it indoor or outdoor without worrying that the battery is running out.                                           .  
[Portable&lightweight] The size of this oscilloscope is 99x68.3x19.5mm, which makes it lightweight and easy to carry. No assembling process is needed because it is assembled completely.

【Upgraded Model 2*P6100 Probe】 FNIRSI 3 in1 Oscilloscope/Multimeter/DDS Signal Generator with 2 Channels, 10MHz Bandwidth, 50MSa/s Sampling Rate, 10000 Counts, Voltage, Current, Capacitor, Resistor

[3 in 1] The FNIRSI-2C23T has combined the functions of 2 channels oscilloscope, digital multimeter and signal generator. Handheld and easy to carry. An ideal multi-functional instrument for professionals, factories, schools, enthusiasts, or families
[Oscilloscope Mode] 2 channel, 10MHz bandwidth, real-time sampling rate 50MSa/s, record depth 32kb, measurement voltage ±400V, automatic measurement, trigger function auto/normal/single, 200mv/div-10v/div vertical sensitivity, waveform storage and export
[Multimeter Mode] 4-digit 10000 Counts. AC Voltage: 0-750V, DC Voltage: 0-999.9V, DC/AC Current: 0-9.999A, Resistance: 0-99.99MΩ, Capacitance: 0-99.99mF, Temperature: -55°C-1300°C/-67~2372℉, Diode, Continuity Measurement
[Signal Generator Mode] Waveform output frequency 2MHz and a step of 1Hz,outputs seven waveforms including sine, square, triangle, full, half, noise, and DC. The output frequency, amplitude, and duty cycle are adjustable
[Large Capacity Battery] FPGA+MCU+ADC hardware architecture, built-in high-voltage protection module, 2.8-inch 320*240 resolution HD LCD display, built-in rechargeable battery 3000mAH, standby time 6H, Type-C , 5V/1A power adapter charging
[DATA storage function] The product is user friendly. There is on-click save and screening function. Those saved images could be uploaded to PC via TYPE C

FNRSI DPOS350P 4-in-1 Oscilloscope, 350MHz Digital Phosphor Scope + 50MHz Signal Generator + 350MHz Spectrum Analyzer + 50MHz FRA, 1GSa/s, 7" Touchscreen, Portable Lab Analyzer with Fast Charging

[All-in-One Professional Tool] Combines a **350MHz digital phosphor oscilloscope** (1GSa/s sampling, 50,000 wfm/s refresh), **50MHz signal generator** (14 waveforms + custom), **350MHz spectrum analyzer** (FFT/3D waterfall), and **50MHz frequency response analyzer** – perfect for labs, production, and field diagnostics. .
[350MHz Digital Phosphor Oscilloscope] Dual-channel scope with **1GSa/s real-time sampling**, **50,000 wfm/s refresh rate**, and **1ns rise time** captures elusive signal anomalies. Features **8-bit to 16-bit high-res mode**, 400V overvoltage protection, and XY/Zoom/Roll modes for precision debugging. .
[50MHz Arbitrary Waveform Generator] Output **14 standard waveforms + custom signals** (500 storage slots) up to **50MHz (sine)/10MHz (square)**. Adjust amplitude (**0-5Vpp**), offset (**±2.5V**), and duty cycle (**0.1%-99.9%**) at **1mV/1Hz resolution** for versatile stimulus. .
[350MHz Spectrum Analyzer] **200kHz-350MHz FFT analysis** with **32K points**, **3D waterfall display**, and **-60dBmV to +260dBmV** dynamic range. Ideal for EMI/RF troubleshooting with max harmonic marker and auto-calibration. .
[50MHz Frequency Response Analyzer] Perform sweep tests (**100Hz-50MHz**) with **20-500 excitation points**. Measure gain/phase response for filters, amplifiers, or system validation via cursor tracking. .
[Precision Signal Capture] Ultra-high **350MHz analog bandwidth** and **1ns rise time** detect low-probability anomalies, while **8-16bit high-res mode**, adjustable grayscale, and **50,000 wfm/s refresh rate** ensure crystal-clear waveform visualization. .
[Advanced Analysis & Generation] Generate complex signals via the **50MHz generator** (0-5VPP amplitude, ±2.5V offset) and analyze RF/EMI with the **200kHz-350MHz spectrum analyzer**, featuring 3D waterfall displays and auto-calibration. .
[Intuitive 7" Touchscreen Operation] High-res **1024×600 IPS display** supports touch controls, color temperature adjustment, and stores **500 waveforms + 90 screenshots**. Includes one-key auto-adjust, zoom, and XY mode for streamlined testing.

【Newly Upgraded】 FNRSI DMC-100 10000-Count True RMS Clamp Meter, 600A AC/DC Current & 750V Voltage Tester, NCV Detection, Temperature, Color Screen with Waveform, Power Meter, Type-C Rechargeable

[Professional Precision & Range] 10,000-count True RMS accuracy measures AC/DC voltage (750V), current (600A), resistance, capacitance, frequency, and extreme temperatures (-55°C~1300°C) for industrial, lab, automotive, and home use.
[Smart Color Visualization] 2-inch TFT color screen (240×320) displays real-time waveforms, power calculations, and curves—making complex diagnostics intuitive and readings instant.
[All-Day Efficiency] 1500mAh battery (Type-C rechargeable) powers flashlight, 10-level backlight, and 30-group data storage—ideal for dim worksites or field repairs.
[Advanced Safety Functions] Features NCV non-contact voltage detection, live/neutral wire identification, diode test, and continuity check to prevent electrical hazards before troubleshooting.
[Engineered for Versatility] Switch between standard measurements, live waveform analysis, and power meter modes; upgrade firmware, auto-range, and customize settings (℃/℉, auto-off, brightness).

FNRSI LCR-P1 Transistor Meter Multifunctional Capacitor Tester ESR Diode Triode NPN PNP MOSFET SMD NEC Infrared Decoding Anti-Burn

[Multifunctional Transistor tester] LCR-P1 is able to detect and analyze the performance and characteristics of semiconductor components such as transistors,diodes, triodes, and field-effect transistors (FETs),etc.
[Testing Range] Resistance:0.010-50MΩ;Capacitance: 25pF~100mF; Inductance:10uH-1000uH; Transistor:10
[Intelligent and Smart] LCR-P1 is able to identify component parameters with one button operation. It is equipped with anti-burn safety protection mechanism. The data could be transferred to PC via usb cable and exported as an Excel file for you to have more in-depth analysis.
[Well-Built Transistor Tester] The LCR-P1 is equipped with 300mAH battery, you could use it both indoor and outdoor; color screen with backlit make data easier for you to read; Test boards are replaceable,making your testing quicker and more convenient.
[ SMD Testing and NEC Infrared Signal Decoding] LCR-P1 is able to measure SMD components and supports NEC infrared signal decoding for remote testng.

FNRSI Upgraded Version LCR-ST1 Mini Smart LCR Meter, SMD Tester, ESR Meter - 100Hz, 1kHz, and 10kHz Resistance Capacitance Inductance Continuity Diodes Measurement Tool

[Multifunctional Smart LCR Meter] Our LCR meter could precisely measure the resistance, capacitance, inductance, diodes and continuity of electronic components.
[Testing Range] Our LCR meter supports three testing frequencies: 100Hz, 1kHz, and 10kHz with 0.3V, 0.6V RMS test levels. Capacitance range: 1pF-22mF; Inductance range: 1μh-10H; Resistance range: 10mΩ-10MΩ; Diodes: On voltage 0.7V.
[Intelligent Meter and data hold function] The LCR meter could automatically identify eletronic components, and it can automatically shutdown when it is no needed. And it can automatically save the test records. You could transfer all the data to PC via EXCEL after PC and LCR meter is connected.
[Well-bulit] The LCR Meter with 1.4 inch color screen could displays ESR, D value, Q value, Z value, X value, easy for you to read. With 240mAH built in battery, and weighs only 1.45ounces, you could use it indoor and outdoor.
[2 Types Replaceable Tweezer Heads] A pointed head and hook head for you to choose, depending on which types of eletronics you want to test..

【Upgraded Model USB Tester with Bluetooth, USB Power Multimeter 4-28V 7A LCD USB A&C Voltage Current Power Tester Fast Charge Detection Capacity Measurement, PD2.0/PD3.0,QC2.0/QC3.0

[Well-built and multifunctional] Equipped with a 2.0-inch color TFT LCD display, integrated USB-A, Micro-USB, Type-C interface. Measures power consumption of products such as USB interfaces, mobile phone chargers, and U disks, mobile phones mobile power supplies
[Fast Charge Protocol Trigger Detection] supports trigger detection of various fast charging protocols, such as QC2.0/QC3.0 trigger, FCP/SCP trigger, AFC trigger, PD2.0/3.0 trigger, VOOC/WARP trigger, Super VOOC 1.0/2.0 trigger,etc.
[Parameter Detection and Recording] able to record 10 sets of data of the charge-discharge enegery recording and calculate the capacity of the built-in batteries; record 1 set of voltage and current curve up to 9 hours; supports low-speed waveform(voltage, current, D+/D-) drawing,etc
[ Curve Display] D+D1 voltge curve can show the recharging protocols changes in real time; provides the high-speed power ripple measurement curve of chargers. Any abnormal charging status could be found immediately
[Blutooth function for ANDROID] For andorid smartphone users, there is an app to download. And open the bluetooth function you could synchronize the date to your smarthone and the computer. And there will be an overvolatge and overcurrent alarm in the app.

FNRSI DMC-100 Digital Clamp Meter Multimeter 10000 Counts for AC/DC Current/Voltage/Diode/Resistance/Capacitor/Continuity/Temperature/Frequency/Zero Live Wire/NCV Test with Flashlight Blacklight

[10000 COUNTS TRUE-RMS AC DC CLAMP METER] FNIRSI DMC-100 is a 10,000-count highly-precisive intelligent clamp meter, covering 750V voltage and 600A current ultra-wide range, whether it is engineering maintenance, laboratory research, or vehicle overhaul, home electrical diagnostics, can be easy to handle.
[WIDE RANGE OF MEASUREMENTS] FNIRSI Multiemter is not only able to test AC/DC current/voltage, but aslo zero fire line identification, NCV non-contact measurement, diodes, continuity, capacitors, resistance, temperature(55 ~ 1300 ℃), etc.
[USER FRIENDLY DESIGN ] FNIRSI Multimeter is equipped with 2 inch 240 * 320 backlight full color display and a flashlight , easy for user to read and use. With built-in 1500mAh battery, you could use it outdoor for very long time without worry battery running out. The "Hold" button enables you to keep data with one lick.
[SMART WAVEFORM DISPLAY&DATA STORAGE] FNIRSI multimeter has curve recording mode, easy for you to track the data fluctuation. It also suports 8 sets of data reviews and 30 sets of historical datas.
[DUAL-CHIPS DESIGN AND HIGH PERFORMANCE] With 2 high processing chips, the FNIRSI multimeter can simultaneously test current and volatge, and the display could show 2 data at the same time.

【Newly Upgraded】FNRSI ERD-10 Digital EMF Meter, Electromagnetic Field Radiation Detector with 2.4" Color Screen for Magnetic Electric RF, Temperature Monitoring, Portable Design

[Triple Radiation Detection] Precisely measures Magnetic Field (0.01-99.99μT), Electric Field (1-1999V/m), and RF Power Density (0.2-1000mW/cm²) to identify electromagnetic sources comprehensively.
[Safety Threshold Alarms] Features audible/visual alarms when readings exceed safe levels (Magnetic: >0.4μT, Electric: >40V/m), alerting you to potential high-radiation zones.
[2.4" Color LCD Display] High-definition screen with adjustable backlight clearly shows real-time data, units (μT, V/m, mW/cm²), and environmental temperature for easy monitoring.
[Portable & Rechargeable] Compact, lightweight design (143g) and built-in 1000mAh battery with Type-C charging (cable included) enable convenient use anywhere - home, office, car, or outdoors.
[Safety First Operation] Take control with auto-shutdown (5/10/15 min),and intuitive controls—effortlessly monitor EMF risks daily.

【Upgraded Model with 1xP6100 Probe】 FNRSI DSO-TC4 3in1 Digital Oscilloscope/Transistor Tester/Signal Generator 10MHz 48Ms/s Automative Ocsillscope LCR Tester Tools

[3-in-1 Versatility] Integrate an oscilloscope, signal generator, and transistor tester in one compact device. Perfect for electronics maintenance, R&D, and component analysis with automatic transistor/diode/FET identification and performance testing.
[High-Performance Oscilloscope] Capture precise waveforms with a 48MSa/s sampling rate, 10MHz bandwidth, and ±400V voltage protection. Features auto-measurement (Vpp, frequency, duty cycle), HOLD function, and screenshot storage for efficient data analysis.
[Adjustable Signal Generator] Generate 13 waveform types (0-50KHz) with customizable frequency, amplitude (0.1V-3.0V), and duty cycle (0-100%) for versatile signal simulation and testing needs.
[Comprehensive Component Testing ] Test transistors, diodes, capacitors (25pF–1000μF), resistors (0.01Ω–50MΩ), inductors (10μH–1000μH), and more. Simplify workflows with automated pin recognition and parametric analysis.
[Portable & User-Friendly] Equipped with a 2.8-inch color screen, rechargeable 1500mAh battery (4h runtime), and lightweight design (186g). Supports 8 languages and Type-C charging for on-the-go convenience.

【Upgraded Version】FNRSI GC-03 Geiger Counter Nuclear Radiation Detector, Portable 3-in-1 Meter for Real-Time NR/EMF/EF Monitoring, w/Alarm, Color Screen, GM Tube (0.01μSv/h Range)

[Tri-Mode Radiation Detection ] Professionally monitors **Nuclear Radiation (NR)**, **Electric Fields (EF)**, and **Magnetic Fields (MF)** in real-time. Measures NR (0.01-999.99 μSv/h), EF (1-1999 V/m), and MF (0.01-99.99 μT) for comprehensive environmental safety.
[Smart Multi-Alert Safety System ] Features **3 customizable alarm modes** (Visual LED, Vibration, Loud Sound) that can work individually or combined. Triggers alerts based on user-set thresholds for NR, EF, or MF levels, ensuring immediate hazard awareness.
[High Accuracy & Flexible Units] Equipped with an energy-compensated **GM Tube** for precise NR detection (48keV-1.5MeV). Supports multiple units (μSv/h, uGy/h, mR/h, CPS, CPM for NR; V/m for EF; μT for MF) to meet professional standards and user preference.
[Clear Display & Data Logging ] ** View live readings and danger assessments on a **bright 2.4-inch color screen** (adjustable backlight). Access historical safety data via the **alarm log**, which records trigger type (NR/EF/MF) and exact timestamp for incident review.
[Portable & User-Friendly] * * Compact design (138x63x32mm, 141g) powered by a **1500mAh rechargeable battery** (USB Type-C). Ideal for home, office, outdoor, or travel use. Features multilingual support (English/Chinese) for global accessibility.

[FNRSI Upgraded 1013D Plus 100X Probe] Oscilloscope Portable Digital Tablet Oscilloscope with 2 Channels 100Mhz Bandwidth 1GSa/s Sampling Rate 7" TFT LCD Touch Screen 100X High Voltage

[Highly Professionalized Oscilloscope] The Fnirsi 1013D oscilloscope is equipped with 2 input channels that have 1MΩ input impedance, capable of measuring two distinct signals simultaneously. With complete trigger function(single/normal/automatic) , it is not only suitable for ind-depth analysis and comparison of different input/output signals, but also can be used for both periodic analog signals and aperiodic digital signals.                                                                          
[High-tech Hardwares] The 7 inches, 800 * 480 resolution, bright colors and high contrast screen makes all the data easy for you to read. It is ultra-thin and easy to carry. With built-in high-voltage protection module, the oscilloscope can tolerate a continuous voltage of up to 400V. The built-in 6000mAh high-performance lithium battery allows you to use continuously for 4 hours after fully charged. The capacitive touch screen, gesture operation and cursor measurement function makes you easy to operate.                                                                          
[Powerful Waveform Manager ] There is a waveform manager in oscilloscope,allowing you easy thumbnail browsing, viewing, page turning, zooming in &out and data storing. The built-in 1GB storage space can store up to 1000 screenshots 1000 sets of waveform data. The XY display generates Lissajous figures, facilitating amplitude, frequency, and phase comparisons between two input signals. Additionally, the USB image export feature simplifies sharing captured data with computers for further analysis.                                                                          
[Fully Trigger Functionality] The oscilloscope supports automatic, single, and normal trigger modes, catering to different testing scenarios. It can detect non-periodic bursts, digital logic signals, and periodic analog signals, providing versatility in waveform capture.                                                                          
[One Key Auto Adjustment] With an efficient blur control algorithm, the oscilloscope swiftly auto-adjusts the waveform, accurately centering it on the screen. This one-key auto-adjustment significantly reduces setup time, making it a valuable time-saving feature.

[Rechargeable 3IN1 Decibel Meter] WESTOBIG Sound Level Meter, Digital dB Meter Noise Meter 30dB to 130dB Portable SPL Meter MAX Data Hold with Color Display Backlight

[3 IN1 DECIBEL METER] FDM01 is not only a decibel meter, but also a temeprature meter and humidity meter.
[ACCURATE MEASUREMENT]] The measuring range of the sound level meter is 30dB to 130dB . Highly accurate with ± 1.5 dB. Real-time monitoring gives you accurate data on noise in the area.
[AUDIBLE AND VISUAL ALARMS] Setting high/low alarm values, if the measured value higher than it,Red color alarm back light will light up to alert you it is over the high/low alarm value.
[BUILT IN RECHARGEABLE BATTERY] With 600mAH built-in rechargeable battery, you need to buy extra 3A battery to power your deceibel meter. It is more convenient to use.
[COLOR SCREEN AND BLACKLIGHT] Color screen makes data easy to read. With the backlight feature,it is appropriate for gathering the sound data at night. Backlight auto power off function is provided. With power saving and high-reliability circuit design,well-design high-efficiency power supply circuit makes the batteries more durable
[COMPACT AND STURDY DESIGN] Composite material injection molding process is adopted for casing with anti-drop structure design. It is not only extremely wear-resisting, but also elegant, It's a mini handheld portable sound level meter.

【FNRSI 2C23T Upgraded with Carrying CASE】 3 in1 Oscilloscope/Multimeter/DDS Signal Generator with 2 Channels, Automotive Oscilloscope 10MHz Bandwidth, 50MSa/s Sampling Rate, 10000 Counts, Voltage

[3 in1] The FNIRSI-2C23T has combined the functions of 2 channels oscilloscope, digital multimeter and signal generator. Handheld and easy to carry. An ideal multi-functional instrument for professionals, factories, schools, enthusiasts, or families
[Oscilloscope Mode] 2 channel, 10MHz bandwidth, real-time sampling rate 50MSa/s, record depth 32kb, measurement voltage ±400V, automatic measurement, trigger function auto/normal/single, 200mv/div-10v/div vertical sensitivity, waveform storage and export
[Multimeter Mode] 4-digit 10000 Counts. AC Voltage: 0-750V, DC Voltage: 0-999.9V, DC/AC Current: 0-9.999A, Resistance: 0-99.99MΩ, Capacitance: 0-99.99mF, Temperature: -55°C-1300°C/-67~2372℉, Diode, Continuity Measurement
[Signal Generator Mode] Waveform output frequency 2MHz and a step of 1Hz,outputs seven waveforms including sine, square, triangle, full, half, noise, and DC. The output frequency, amplitude, and duty cycle are adjustable
[Large Capacity Battery] FPGA+MCU+ADC hardware architecture, built-in high-voltage protection module, 2.8-inch 320*240 resolution HD LCD display, built-in rechargeable battery 3000mAH, standby time 6H, Type-C , 5V/1A power adapter charging
[DATA storage function] The product is user friendly. There is on-click save and screening function. Those saved images could be uploaded to PC via TYPE C

【Upgraded Kelvin Four-Terminal Sensing】 WESTOBIG Battery Tester Internal ResistanceTester for Universal Batteries Meter, Car Battery Tester, 0-100V 0m-200Ω, Digital Battery Analyzer for Automotive

[WIDE APPLICATION BATTERY TESTER] The FNIRSI HRM-10 battery tester is not only able to test car batteries, but also other types of batteries such as AA, AAA batteries, button batteries, lithuim batteries, lead-acid batteries,etc. The range of DC voltage is 0 - ±100V and resistance 0 - 200Ω. NOTE: The device must not be used with a DC voltage higher than 100V. Do not apply AC voltage under any circumstances.                                                                       
[ KELVIN FOUR-TERMINAL SENSING] The FNIRSI HRM-10 comes with a kelvin clip test line. With Kelvin four terminal sensing, it can be possible to accurately measure resistance values less than 0.1 Ω while eliminating the inherent resistance of the lead wires connecting the measurement instrument to the component being measured. It will provide you accurate values and help you identify the problematic batteries.                                                                       
[ DATA PRESET FUNCTION] The FNIRSI HRM-10 battery tester has auto mode.Voltage gears is: Automatic, 1V, 10V, 100V and the resistance gear is :Automatic, 20mΩ, 200mΩ, 2Ω, 20Ω, 200Ω. You could preset 8 sets of data and check if the batteries can meet the standard you set and help you quickly find out the problematic batteries.                                                                       
[NO DATA WOULD BE MISSED] The FNIRSI HRM-10 internal resistance tester can automatically save all the test records. And you could connect the tester to your PC and transfer all the data to PC via EXCEL. It would be convenient for you to analyze.                                                                       
[FASHIONABLE DESIGN AND COLORFUL DISPLAY SCREEN] Testing euipment need to be more cooler and user-friendly. This is the principle we live up to when we design the product. The display of FNIRSI battery tester adopts advanced color HD technology and was designed with excellent layout. Compared with traditional monochrome displays, it can present test results more clearly and vividly, greatly enhancing the user's measurement experience.                                                                       

FNRSI【Upgraded DPS-150】DC Power Supply Variable with 100W Fast Charger, 0-30V 0-5A Adjustable DC CNC Power Supply, Power Ripple <20mV, PD/QC/DC Input with IPS Display, PC Programmable Power Supply

[WHY CHOOSE DPS150] It is small, compact and well designed. Compared with those bench top dc power supply, it is not only space-saving and portable, but also has higher performance and better functionality.
[HIGHLY STABLE OUTPUT] DPS150 supplys 30V, 5A,150W DC power supply variable, 0.01V, 0.001A highly precisve display, CC/CV switchable,
[PC PROGRAMMABLE FUNCTION] FNIRSI DPS-150 DC power supply supports PC, QC and DC input modes. This switching power supply is equipped with a PC programmable output function, 6 groups of output parameters can be preset to quickly adjust the output voltage and current
[MULTIPLE CONNECTION METHODS] The variable power supply integrates a variety of connection methods such as 4mm banana heads, U -shaped terminals and fine copper wires to meet the connection needs of different electronic equipment and power cords
[IT VALUES SECURITY PROTECTION] DPS150 power supply has 8 advanced safety protection mechanisms, including overvoltage protection, current protection, short circuit protection, overheating protection, etc., to protect your equipment safety.
[HD DISPLAY] Equipped with a 2.8 -inch IPS color screen and supports 90 ° flip, which is convenient for multi -angle observation. The UI interface supports numerical display and curve display, clearly and visually display the power status.

WESTOBiG FAQs

Yes, WESTOBiG is a legitmate brand on Amazon. After conducting a comprehensive analysis of 65 customer reviews for WESTOBiG products on Amazon, we have determined its average rating. With a strong performance and good quality, WESTOBiG has received an average rating of 4.72 from numerous buyers, indicating that WESTOBiG are trustworthy and live up to their claims. Therefore, it is safe to make purchases from WESTOBiG 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.

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We analyze millions of WESTOBiG 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 26 WESTOBiG products for sale, 20 of which were analyzed in detail and recommended to customers.

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Most of the WESTOBiG products are produced by FNIRSI, WESTOBIG-FNIRSI, and FNIRSI-WESTOBIG. The manufacturers provide WESTOBiG with a steady supply of products, and they have a good cooperative relationship with each other.

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