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Digital Voltmeter 12V-250V Socket Wall AC/DC Power Outlet Detector
Feature: 100% Brand new and High quality The tester pen can test 12-250V voltage and indirectly test AC neutral wire, phase line and breakpoint. It can show 220V at most. Press the “direct” button can directly test AC voltage Press the “inductance” button can test DC voltage Use the pen tip to test AC phase line …
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HC-SR04 Ultrasonic Wave Detector Sensor Module
This module has stable performance and accurate measurement distance. Module high-precision, blind (2cm) ultra-close, stable range is the success of this product to the market a strong basis! This module fully humility GH-311 anti-theft module. (1) using IO trigger ranging,to at least 10us of high-level signal; (2) the module automatically sends eight 40khz square wave, …
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HC-SR501 PIR Motion Detector Sensor
Automatic induction: When someone enters its induction range, enter the high level, people leave the sensor range isautomatically delayed off high. Output low. photosensitive control (optional): the module reserved for location, can be set to photosensitive control, strong light during theday or not induction. Photosensitive control is optional, the factory did not install photosensitive resistor. …
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Rain Detector Water Level High Sensitivity Sensor Module for Arduino
Voltage: 5V Power indicator light, the output signal LED indicating lamp. TTL level output, TTL output signal for low level drive capacity of around 100MA, can directly drive the relay, a buzzer, a small fan, etc.. Sensitivity adjustment via potentiometer No rain when the LED light output is high, the output level, go up, LED …
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TCRT5000 IR Reflective Photoelectric Module
TCRT5000 sensor of infrared emission diode constantly launch infrared, the infrared ray is emitted when the intensity of reflected back has not been reflected or but is not big enough, the light activated triode has been in the off state, the output end of the module at this time for the high level, indicating diode …
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