One unit emits an infrared beam invisible to the naked eye.
Garage door photo beam.
It consists of two units installed about 4 inches from the floor on each side of the door.
The photo eye consists of two sensors one on either side of the garage door about 6 inches above the ground.
The beams work together to detect objects people or animals in the path of a descending garage door.
The second is photoelectric.
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One of the sensors directs a beam toward the other.
This fits your.
Marantec infrared safety system.
One photo eye beam is installed on one side of the garage door and the other is installed on the other side with exact heights from the bottom of the door specified in the user manual.
Our goal with the line of beamup garage door openers is to incorporate simplicity in installation convenience to make your busy life easier and a feeling of security safety every time you use them.
The other unit is a reflector.
Designed for easy installation in pre wired garages.
Safety beams are sold in pairs.
If an object interrupts the beam.
If something breaks the beam while the door is closing the opener motor automatically reverses direction and opens the door.
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In this video i show you how to realign your garage door sensors so that the garage door can function properly.
We ve learned a lot over 30 years.