Title: Worthless waste of time and money
Review: This unit worked when tested inside my living room, but put outside, about 60 feet away from receiver, responded about 1 out of 5 times, for two days, then quit. I went through several new batteries on both units, and put the receiver in the direct line of sight of the sensor, and nothing.... silence.Junk. Battery-sucking, time-wasting junk.
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