A proximity sensor is a non-contact sensor that detects the presence of an object (often referred to as the “target”) when the target enters the sensor's field. ... An inductive proximity sensor can only detect metal targets. This is because the sensor utilizes an electromagnetic field . Specifications: Output: Switching Transducer Type : Vibration Sensor Material: Polymer Model Number: Usage: Position Sensor Theory : Optical Sensor Package Includes: 1 x Proximity sensor lotted