Proxswitch 4-Wire P800 KitAPPLICATION The P800 Proxswitch is an inductive sensor designed to detect shaft speed, shaft position, gate position, or object presence. METHOD OF OPERATION The P800 Proxswitch is a CSA Class II, Division 1 approved limit switch style proximity sensor, which works on the damped oscillator principle. No contact is made between the sensor and the object being monitored. The P800 will detect a ferrous object at a maximum distance of 1 2 and a non