Here is a huge collection of Autonics Proximity Sensor includes Inductive, Capacitive NPN/PNP NO Ranges 2-15mm. A proximity sensor is a sensor able to detect the presence of nearby objects without any physical contact. A proximity sensor often emits an electromagnetic field or a beam of electromagnetic radiation (infrared, for instance), and looks for changes in the field or return signal.

The object being sensed is often referred to as the proximity sensor’s target. Different proximity sensor targets demand different sensors. This inductive proximity sensor generates an electromagnetic field to sense metal objects. Capacitive proximity sensors can be used to detect metallic and also nonmetallic targets.