I've had two Skylink Motion Sensors installed for about a month now and have only had 1 suspected false alarm. We set the alarm before leaving for Maine and about 15 minutes after we left our cell phones rang indicating a triggered alarm. Hmmm... Must have been a false alarm. We didn't hear a peep all week after that. Upon re-entering the house when we returned a week later I was sure to listen carefully in order to make sure that the alarm was still armed as we opened the door. Sure enough it was ready to sound upon re-entry. Disarmed it using the key fob and thus completed a successful first test.
From what I can tell, these motion sensors are a wonderful option in lieu of a bunch of door and window sensors that can be difficult to install, are unsightly, and require battery changes. I have both of our motion sensors set on LOW sensitivity, which is recommended by Skylink. Even so, you can barely move a muscle in front of them without setting them off.
I can't comment yet on battery life, but I can only hope that it is measured annually instead of monthly. Skylink PS-434A Motion Sensor
Bought this as a supplement to my system. It works perfectly and easy to add by reading the instructions (sounds simple but most people tend to forget this step). If you are thinking of adding, you will have no problem incorporating this to your current Skylink (make sure the model is listed). - Security System - Skylink - Motion Detectors - Home Security'
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