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Voice prompt: you can immediately alert operators by voice, such as lighting lighting - to provide lighting for night operation
1. Safety reversal: All the garage door opener furnished with safety reversal feature. The door has two sensors situated six inches across the floor level, either side in the door. When any object like pet, child or anything else, speak to light beam created by sensor even though the door is closing, the entranceway stops and reverses. If your opener have not this safety reversal feature, change it out as quickly as possible.
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