1 of 1 people found the following review helpful
Verified Purchase(What's this?)
This review is from: Skylink HA-434TL Long Range Motion Sensor; Be notified of your surroundings. (Tools & Home Improvement)
Good battery life and range.I have a two storied house and I placed the sensors four corners of my house and the receiver in my upstairs bedroom. I consider this investment well worth the money. I can sleep peacefully now.