The same mechanism kicks in when other objects are placed near the door too.
Ge garage door sensor.
Once the garage door opens to a35 degree angle the sensor will go into an alarm condition turning on the siren and calling the central monitoring station.
When mounted properly it monitors when the door is open or closed.
The settings on the control center determine if an alarm alert or chime sounds.
Alarm delay feature avoids false triggering.
Whenever there is an obstruction the garage door will automatically reverse before causing any damage.
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Under normal use the sensor transmits open trip and close restore.
120 decibel alarm sounds when door is opened.
The garage door sensor enables you to monitor the opening of your garage door.
If the door is opened the garage door sensor will transmit a signal to the control center.
Mounts using double sided tape included or screws included.
Door alarm uses four digit keypad to set security code for arming disarming.
In general garage door sensors block the door from closing if there is an object nearby.
The replacement safety sensors project an invisible light beam across the inside of the garage door to prevent accidents and are required for safe use of all chamberlain garage door openers.
Versatile mounting plate provided.
Free shipping for many products.
If the sensor doesn t receive the beam emitted by its opposite number the door won t close.
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This precaution ensures that the door doesn t close when your car is in the doorway.
The garage door sensor is designed to be used specifically with vertical opening garage or shed doors.
Garage door sensors protect your family possessions and pets by not allowing the heavy garage door to close if there is anything in the glide path.