Magnetic Proximity Sensor 6 - 36 VDC NO Open collector output.
PNP Inductive Proximity Switch with 110cm cord for 3D Printer Auto Leveling
Brown Power supply +6 to 36VDC 300mA
Black Open collector output
Blue GND
Red LED indicator visible from the back side.
Attach a pullup resistor to the black lead (say 10K), place your meter across GndBlue and Black lead, move the disc magnet towards the blue cap, at some point the meter will read 0 volts. When the magnet is not near the sensor it will equal 5 volts with a power supply of 5 volts DC.
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