Haldzemo

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When purchasing a product, price is the consumer's primary concern. At present, Haldzemo has 37 products for sale. Haldzemo products range in price from $7.99 to $15.99, and the average price of all the products is about $11.94. It's affordable for most consumers, and you can feel free to pick your favorite products.

You can confidently purchase Haldzemo products from the seller Haldzemo. The brand holds an average rating of 4.47, testifying to its excellent reputation.

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Last Updated: Jan 11, 2025

Haldzemo Inductive Proximity Sensor M12 LJ12A3-4-Z/BX Normally Open Detection Approach Switch 4mm NPN NO 3 Wire DC 6V-36V (4 Pack)

Proximity Sensors Inductive Proximity Sensors

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Inductive proximity switch type: LJ12A3-4-Z/BX, 3 Wire NPN NO. Detecting Distance: 4mm, Diameter: 12mm.

Supply Voltage: 6-36VDC, Current Output: 300mA, Frequency: 500Hz.

Wiring Method: Brown connect to Positive, Blue connect to Negative, Black connect to Load (signal output).

When proximity switch is close to some target object, it will send out control signal.

It is widely used in machine, paper making, light industry for limiting station, orientation taking count, speeding trial ect.

Haldzemo Inductive Proximity Sensor SN04-N Normally Open Detection Approach Switch NPN NO with TL PL SN Bracket (Blue, 4 Pack)

Proximity Sensors Inductive Proximity Sensors

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Inductive Proximity Switch Type: SN04-N, 3 Wire NPN NO. Detecting Distance: 4mm. Supply Voltage: 5-30VDC, Current Output: 300mA.

LED working indicator: signal indicator, when sensing metal objects the light is on for normally open, the light is off for normally closed.

Wiring Method: Brown connect to Positive, Blue connect to Negative, Black connect to Load (signal output).

When proximity switch is close to some target object, it will send out control signal. Widely used for machine tool industry, frequency counters and other automatic control system, or you can use it for DIY 3D Printer.

You will get 4pcs inductive proximity switch + 4pcs SN Bracket

Haldzemo M8 M12 M18 SN04 L-Shaped Straight I Type Mounting Iron Bracket for Photoelectric Switch Inductive Proximity Sensor (10 Pack, M18-L Type)

Hardware Brackets

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Bracket Type: M8/M12/M18, Material: Iron, Color: Silver.

M8 I Type Size: 59*16*2mm, Weight: 11g. M8 L Type Size: 34+39*16*2mm, Weight: 11g

M12 I Type Size: 73*20*2mm, Weight: 16g. M12 L Type Size: 38+38*20*2mm, Weight: 16g

M18 I Type Size: 87*26*2mm, Weight: 24g. M18 L Type Size: 43+47*26*2mm, Weight: 24g

Apply to photoelectric switch inductive proximity sensor

Haldzemo 0.28 Inch Three-Line Voltage Meter Mini LED Digital Voltmeter Gauge (Blue, 8 Pack)

Voltage Testers

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3-wire digital voltmeter detection voltage: DC 0~100V, working voltage: 4~30V (with reverse connection protection function).

Note: The three-wire voltage range of 0-100V, can also be used for the second line but the voltage should be within 30V.

It can work with 5V, 9V, 12V and 24V. Adjustable voltage resistance, Rotate clockwise to lower the voltage.

The display color of digital voltmeter: blue.

Size: 30*10*8mm, weight: 5g. Quantity: 8pcs.

Haldzemo 1S 2S 3S 4S 5S 6S 7S 8S 1-8S Lithium Battery Capacity Indicator Module 4 Sections Blue LED Display Tester Li-po Li-ion (5 Pack)

Car Battery Testers

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Working voltage: 3-34V, working current: 5mA, working temperature: -20-50℃

Using Method: connect display board positive and negative port with tested battery positive and negative port, digital tube will display real-time battery electricity quantity.

Note: This model is not waterproof, the electronic components should be used in a dry environment.

Wide application fields: lithium battery

Four-level power display(Blue/Green optional)

Haldzemo NJK-5002C Hall Effect Sensor M12 Proximity Switch NPN NO 3 Wires Detection Approach Switch 10mm Normally Open (4 Pack)

Hall Effect Sensors

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Hall Effect Sensor Proximity Switch Type: NJK-5002C, 3 Wire NPN NO. Detecting Distance: 10mm, Diameter: 12mm. Detection Object: Magnet

Shape: Cylindrical, Cable Length: 1.2M, Size: M12*1*40mm, Weight: 38g.

LED working indicator: signal indicator, when sensing magnet objects the light is on for normally open, the light is off for normally closed.

Wiring Method: Brown connect to Positive, Blue connect to Negative, Black connect to Load (signal output).

You will get 4pcs hall effect sensor proximity switch

Haldzemo TEC1-12706 Semiconductor Refrigeration Tablets 30W 12V 3A 40x40MM Heatsink Thermoelectric Cooler Cooling Peltier Plate Module (6 Pack)

Heatsinks

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Model: TEC1-12706, Size: 40*40*3.5mm, Weight: 22g

Working Current: 3A (rated 12V), Refrigeration Power: Qcmax 30W

The side printed with TEC1-12706 is the cooling side, another is the heating side.

Red wire is positive, black wire is negative. Test method: Install the red and black wires of the refrigeration tablet on both ends of 1 cell battery, if you can feel one side is slightly cold and one side is slightly hot, it means that the refrigeration tablet is good!

Note: Please make sure you have installed with a heat radiator on the heating side. Otherwise the overheating will burn it out. When you installing the radiator, make sure to scribble some thermal grease on the surface.

Haldzemo MAX7219 8x8 Dot Matrix LED Display Module 5V MCU Control LED Dot Matrix for Arduino Raspberry Pi (Blue, 4 Pack)

LED Segment Displays

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MAX7219 8x8 dot matrix common cathode LEDs, three color options: red, green, blue.

Operating voltage: 5V, MCU control

Size: 32*32*13mm, Weight:12g

With 4 fixing screw holes for easy installation, diameter 3mm.

Modules with input and output interfaces, support for cascading multiple modules.

Haldzemo 5V 3 Pins KY-008 650nm Dot Diode Copper Head Laser Sensor Transmitter Module Compatible Arduino AVR (9 Pack)

Diode Lasers

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Model: KY-008, Operating voltage: 5V

Output wavelength 650nm

With fixed bolt hole for easy installation

Laser Receiver Sensor Module uses the non modulated laser receiver, please use in the room where without the light, the sunlight or other lamps and lanterns will interfere, suggested in the dark environment use.

Can be use for Arduino control, doing controllable laser pointer, theft detection, etc. interesting application devices.

Haldzemo SN04-N2 NPN NC Inductive Proximity Sensor Normally Close Detection Approach Switch with SN Bracket (Blue, 2 Pack)

Proximity Sensors Inductive Proximity Sensors

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Inductive Proximity Switch Type: SN04-N2, 3 Wire NPN NC. Detecting Distance: 4mm. Supply Voltage: 6-30VDC, Current Output: 300mA.

NPN: common positive voltage, output negative voltage. PNP: common negative voltage, output positive voltage. NO: normally open. NC: normally closed.

Wiring Method: Brown connect to Positive, Blue connect to Negative, Black connect to Load (signal output).

LED working indicator: signal indicator, when sensing metal objects the light is on for normally open, the light is off for normally closed.

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Haldzemo SW-420 Normally Close Vibration Sensor Vibration Switch Alarm Module Compatible Arduino (10 Pack)

Vibration Sensors

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SW-420 normally closed vibration sensor operating voltage is 3.3V to 5V

Output form: Digital switching output (0 and 1)

Small board PCB size: 3.2cm x 1.4cm, with fixed bolt holes, easy to install

Compared with the normally open type vibration sensor, this module has a longer vibration trigger time and can drive the relay module

Used for a variety of vibration triggering role, report theft alarm, intelligent cart, earthquake alarm, motorcycle alarm, etc.

Haldzemo 2in1 1-8s Lipo Battery Voltage Tester RC Low Voltage Buzzer Alarm Battery Use for 1-8s Lipo Li-ion LiMn Li-Fe (6 Pack)

Voltage Testers

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Use for 1-8s Lipo/Li-ion/LiMn/Li-Fe. Automatic Protects Against Reverse Connection.

Loud alarm sound andaccurate voltage display, display the Value of BatteryCell Voltages, Total Voltages, Lowest Cell Voltage, Remaining Battery Capacity and Low Voltage Alarm Funtion.

Protect the Battery From Overcharging or Overdischarging.

When the Voltage is Below the Set Value, It Will Buzzer with Red LED Light, Pre-set Value 3.3V. Push Key which Can Change the Voltage Settings and Save.

The front of the display is facing up (the digital display), and the white balance charging plug of the battery is inserted along the leftmost pin of the display. The display will immediately beep twice, and the screen will display the digital , If there is no response, just plug the balance charging plug backwards. There is a small button on the other end of the display to set the alarm voltage of the display.

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Haldzemo Square Inductive Proximity Sensor SN04-P Normally Open Detection Approach Switch PNP NO with TL PL SN Bracket (Blue, 4 Pack)

Proximity Sensors Inductive Proximity Sensors

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Inductive Proximity Switch Type: SN04-P, 3 Wire PNP NO. Detecting Distance: 4mm. Supply Voltage: 5-30VDC, Current Output: 300mA.

LED working indicator: signal indicator, when sensing metal objects the light is on for normally open, the light is off for normally closed.

Wiring Method: Brown connect to Positive, Blue connect to Negative, Black connect to Load (signal output).

You will get 4pcs SN04-P inductive proximity switch + 4pcs SN Bracket

Haldzemo NE555 DC12V 0 to 10 Second Delay Timer Relay Switch Adjustable Module Compatible for Arduino (9 Pack)

Home Automation Modules

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Main Chip: NE555, Operating voltage: 12V DC

Possess of input power indicator and relay pull-in indicator

Adjustable Delay timer switch can be used with other circuits to provide a time delay for other appliances.

The delay time is adjustable (0 to 10 seconds), can control AC 220V/10A equipment (Maximum control equipment 2000W).

Compatible with Arduino, Raspberry Pi, AVR, PIC, 8051

Haldzemo SN04-P PNP NO Inductive Proximity Sensor Normally Open Detection Approach Switch with SN Bracket (Blue, 2 Pack)

Proximity Sensors Inductive Proximity Sensors

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Inductive Proximity Switch Type: SN04-P, 3 Wire NPN NO. Detecting Distance: 4mm. Supply Voltage: 5-30VDC, Current Output: 300mA.

LED working indicator: signal indicator, when sensing metal objects the light is on for normally open, the light is off for normally closed.

Wiring Method: Brown connect to Positive, Blue connect to Negative, Black connect to Load (signal output).

NPN: common positive voltage, output negative voltage. PNP: common negative voltage, output positive voltage. NO: normally open. NC: normally closed.

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Haldzemo Hall Effect Sensor NJK-5002D NPN NC Detection Approach Switch 10mm M12 Proximity Switch with L Type Bracket (2 Pack)

Hall Effect Sensors

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Hall Effect Sensor Proximity Switch Type: NJK-5002D, 3 Wire NPN NC. Detecting Distance: 10mm, Diameter: 12mm. Detection Object: Magnet

Shape: Cylindrical, Cable Length: 1.2M, Size: M12*1*40mm, Weight: 38g.

LED working indicator: signal indicator, when sensing magnet objects the light is on for normally open, the light is off for normally closed.

Wiring Method: Brown connect to Positive, Blue connect to Negative, Black connect to Load (signal output).

You will get 2pcs NPN NC hall effect sensor proximity switch + 2pcs L Type Bracket

Haldzemo 5V 3Pins Non-Modulator Tube Laser Sensor Receiver Detection Module Compatible Arduino (9 Pack

Sensor Blocks

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The sensor uses a non-modulated laser receiver.

The Non-Modulator Tube Laser Sensor Receiver Detection Module Operating voltage is 5V.

It output high level when receive laser signal, and low level when not.

High sensitivity, can be received on the front, side, and back sides.

Please use this sensor in dark environments or indoors where no light. Sunlight or other fixtures may interfere.

Haldzemo M12 Inductive Proximity Sensor LJ12A3-4-Z/BY Normally Open Detection Approach Switch PNP NO 3 Wire DC 6V-36V with I Type Bracket (2 Pack, PNP NO+I Type)

Proximity Sensors Inductive Proximity Sensors

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Inductive Proximity Switch Type: LJ12A3-4-Z/BY, 3 Wire PNP NO. Detecting Distance: 4mm, Diameter: 12mm, Supply Voltage: 6-36VDC, Current Output: 300mA.

LED working indicator: signal indicator, when sensing metal objects the light is on for normally open, the light is off for normally closed.

Wiring Method: Brown connect to Positive, Blue connect to Negative, Black connect to Load (signal output).

When proximity switch is close to some target object, it will send out control signal.

It is widely used in machine, paper making, light industry for limiting station, orientation taking count, speeding trial ect.

You will get 2pcs inductive proximity switch + 2pcs I-Type Bracket

Haldzemo NJK-5002C Hall Effect Sensor NPN NO Detection Approach Switch 10mm M12 Proximity Switch with L Type Bracket (2 Pack)

Hall Effect Sensors

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Hall Effect Sensor Proximity Switch Type: NJK-5002C, 3 Wire NPN NO. Detecting Distance: 10mm, Diameter: 12mm. Detection Object: Magnet

Shape: Cylindrical, Cable Length: 1.2M, Size: M12*1*40mm, Weight: 38g.

Wiring Method: Brown connect to Positive, Blue connect to Negative, Black connect to Load (signal output).

LED working indicator: signal indicator, when sensing magnet objects the light is on for normally open, the light is off for normally closed.

You will get 2pcs hall effect sensor proximity switch + 2pcs L Type Bracket

Haldzemo Inductive Proximity Sensor Normally Close SN04-P2 PNP NC Detection Approach Switch with SN Bracket (Blue, 2 Pack)

Proximity Sensors Inductive Proximity Sensors

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Inductive Proximity Switch Type: SN04-P2, 3 Wire PNP NC. Detecting Distance: 4mm. Supply Voltage: 10-30V DC, Current Output: 300mA.

Wiring Method: Brown connect to Positive, Blue connect to Negative, Black connect to Load (signal output).

LED working indicator: signal indicator, when sensing metal objects the light is on for normally open, the light is off for normally closed.

NPN: common positive voltage, output negative voltage. PNP: common negative voltage, output positive voltage. NO: normally open. NC: normally closed.

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Haldzemo FAQs

Is Haldzemo Legit?

Yes, Haldzemo is a legitmate brand on Amazon. After conducting a comprehensive analysis of 11 customer reviews for Haldzemo products on Amazon, we have determined its average rating. Offering great value and satisfying quality, Haldzemo has achieved a respectable rating of 4.47 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 Haldzemo 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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