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Holzer Switch Sensor Module
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Price: US$0.75   Submit a wholesale Inquiry
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Information
1 size: 2.7 cm*1.4mm
2 main chips: 3144 Holzer sensor
3 working voltage: 5 V DC

Interface description (4 wire)
1 VCC external 5V voltage
2 GND external GND
3 DO small board digital output interface (0 and 1)

Features
1 power indicator light and signal output indicator
2 single channel signal output
3 module is not triggering, output low level; module is triggering, output high level
4 magnetic field cutting the signal output
5 circuit board output switch value, directly connect the single chip microcomputer or the relay module, buzzer module
6 used for motor speed / position detection etc.
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