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commented on "PHOTOELECTRIC GARAGE DOOR SAFETY SENSOR"
on www.directgaragedoors.com.au
http://www.directgaragedoors.com.au/gallery/Uncategorised/photoelectric-garage-door-safety-sensor/472279
PHOTOELECTRIC GARAGE DOOR SAFETY SENSOR
Photoelectric sensor consists of a photoelectric beam that extends across the garage door opening. This sensor is designed to detect an obstruction while the door is closing and to signal your garage door opener to reverse the door movement.
Item added 18 September 2016
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