1/2 HP Chain Drive Garage Door Opener

Similar to Sears Craftsman and Liftmaster 1/2HP garage door opener. Some parts can be shared with Chamberlain's product. 1) Power: AC 110V/60Hz, AC 220V / 50Hz 2) Ambient temperature: -40 +75 3) Remote-controller battery: Two cr2016 4) Max. Output driving strength: Not less than 67kgs. 6) Remote control distance: Not shorter than 30m 7) Designed as per the relevent standards of ul325 and has passed American ETL & FCC certification 8) When powered, the system carries out a self-check and if trouble is found During the self-check, it stop working and gives an alarm 9) If an obstacle is met during the process of door closing or opening, the door Will stop and will open to the max. Set position 10) The remote-controller emission adopts roll codes and there will be as many As 10 billion code combinations, featuring a very high degree of security 11) Everybutton on the remote-controllercan be confirmed, so that one remote- Controller may be used to open or close several garage doors 12) The door opener is equipped with a light, which is on when the door is Started and automatically turns off in 4 minutes 13) In case of a power failure, power may be supported with ups (select).