La description

Tamper alarm function、rail mechanism anti-prize function、wireless password keyboard control system、infrared protection function、overload protection function、nine-level delay automatic shutting function、illumination automatic delay(for three minutes)、stroking trimming function、soft start and slow stop function、power of door switch can be detected automatically、rebound when difficult close and stop when difficult open、automatically resettable clutch、backup power access port、digital display、rolling-code remote control technic of **3HZ、sensitive remote control、no coincident code、high security.