Jobar International RET3731 Driveway Patrol
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<b>[Product Information]</b><br>
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<li>Driveway Patrol infrared wireless alert system</li>
<li>Use to monitor the mailbox, garage, driveway or countless other places</li>
<li>Battery operation and 400' range means no wiring is necessary</li>
<li>When a vehicle or person passes the sensor, the receiver emits an audible tone</li>
<li>Requires one 9 volt and three C batteries, not included</li>
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