For control panels only, excluding any swing door operators Soft start/slow stop; with self-shutdown function. Adjustable automatic shutdown time Comprehensive interface: infrared, solar, push button switch, photocell, backup battery. Infrared connection infrared photocell function: During the closing process, when the infrared rays of the infrared sensor are covered, the door will open immediately to protect the safety of users and property. The distance between the photocell receiver and the photocell transmitter is not less than 2 meters, otherwise it will affect the induction of the photocell., Manufacturer: DMETE