Detects metal objects within 4 mm of the sensor head
Built-in red LED lights up
Easy connection
Output Signal: NPN
Supply Voltage: 6 - 36 V DC
The Inductive Proximity Sensor Detection Switch accurately detects metal objects that are within 4 mm of the sensor head. When a metal object is detected, the built-in red LED lights up and the black signal wire is internally shorted to ground through an NPN transistor. When no object is detected, the signal is floating/high impedance.
Note: It is recommended to supply the sensor with no more than 6 V, and to put a series protection resistor between the signal output of the sensor and digital input of your board when connected to 5 V logic, such as Arduino compatible boards.