Product features & application: Non-touching exit sensor. Infrared sensory technique. IP-55 protection grade. SUS 304 stainless panel. Inducting distance: 0.1 to 10cm Applicable to door,window,exit device,auto-control device. High capacity signal connector(3A 120VAC) NO/NC Light indication: (1) Standby: blue light (2) User approaching and within 10cm: red light