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Chamberlain CHCWA2000 Motion Alert (834844002926)
Alarm Motion Detector Sensor
Well built, very sensitive, long range, sound and light indicators. Reliable.
Wide sensor range could be a problem depending on use intended.
Jobar Driveway Patrol
It does work at least somewhat.
Not very weatherproof, maximum distance is less than 100 feet
Probe Driveway Alert
The WPA-3000 is an extremely reliable driveway alarm that is used to detect vehicles only. The transmitter operates on one 9-volt battery and has 50' of direct burial wire connecting the probe to the ...
Easy installation, transmits through the woods without wires. No false alarms from animals.
Does not detect pedestrians or bicycles. False alarms in storms, power outages.
$0 - $35
$35 - $70
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