LiftMaster 26-DGI-16 7-Day Timer

Timer 7 day digital 24 vac Used to automatically open or close a door at pre-programmed times. Includes manual override and battery back-up. WARNING: Automatic door operation can cause serious injury or death. Do not use this device without entrapment protection equipment, audible/visible warning devices, clearly posted warning signs, and an emergency STOP button near the door.