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Review title: Moody and not reliable
Product review: Disappointed, again, I had a bad past experience with these units in a small apartment building, tenants complaint constantly, I thought it was a fluke until I put three of them in my own home, one week after installation two of them kept beeping 3 beeps at a time all hours day and night, I changed the batteries but that didn't help. I read the instructions that stated when those 3 beeps sound it signifies that unit is defective and need replacement! That's two out of three in one week!
