Title: Warning!
Review: This monitor started failing after a month (of which, unfortunately, we were away for over 2 weeks). After testing and re-programming and changing batteries 3 times at $2.50 a pop, it was apparent that the sending units were defective. Called Chamberlain, who agreed that the sending units (sensors) were defective. THEY WILL NOT DO ANYTHING FOR YOU IF YOU BUY THROUGH AMAZON!! THESE PRODUCTS DO NOT HAVE A FACTORY WARRANTEE! You have 30 days to return defective products to Amazon. After that you have garbage.
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