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The Whadda 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 6V, and to put a series protection resistor between the signal output of the sensor and digital input of your board when connected to 5V logic, such as Arduino® compatible boards.
Features:
- Detects metal objects within 4mm of the sensor head
- Metal detected:
- Built-in red LED lights up
- The black signal wire is internally shorted to ground through an NPN transistor
- No metal detected:
- Signal is floating/high impedance
- Easy connection
Specifications:
- Supply voltage: 6 - 36Vdc
- Sensor model: LJ12A3-4-Z / BX
- Detection distance: 4mm
- Output signal: NPN (high impedance when no object is present, or ground when object is detected)
- Cable length: ± 110cm
- Weight: 44g
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