Title: Worked for about 24-Hours
Review: What a hassle!! Purchased a bird house and modified it to hold the outdoor sensor so it would be out of the weather and less visible. Purchased the 9 volt and 3 ea C batteries. Worked great that afternoon, but the next morning you had to be within 6 feet of the sensor before it would respond. I replaced the batteries, but no dice. Not worth the time and effort. Now I have the hassle of returning the unit.
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