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Garage Door OpenersRoller Door MotorsDoor Opener Optional Parts- Remote Control- Keypad- Wireless Wall Switch- Single wired Wall Switch- External Receiver- Infrared Sensor- Caution Light- Battery Back-up- Emergency Lock
Battery Back-up
Introduction
Power off occasionally or frequently is an annoying thing. Using a battery back-up will keep you calm when power off. You can still open/close your door automatically by the door opener.
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