วันพฤหัสบดีที่ 5 เมษายน พ.ศ. 2555

New USAutomatic Sentry Exit Sensor Underground Automatic Gate Opener


New USAutomatic Sentry Exit Sensor Underground Automatic Gate Opener


Sentry Exit SensorUse with the Sentry Automatic Gate Opener. The driveway exit sensor is a magnetic device that installs below ground beside the drive. A magnetic field is established which, when interrupted by a metal object, will send a signal to open the gate. This sensor is supplied with a 50 foot cable and is typically installed inside the property beside the drive to automatically open the gate when a car passes. Note: It is recommended to install this sensor and cable in PVC conduit. If more than 50 foot of cable is desire, do not attempt to add cable. This type of sensor is not a safety device. Automatically opens the gate when a car passes Solar friendly design will not drain gate opener battery 80 feet of cable is included 3 year warranty Made in USA

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