Product review (1 stars): Completely worthless
This is truly the most useless purchase I have made in years. Off our kitchen is a 3 season room, I placed the sensor less than 10 feet from the base. Between the kitchen and this room is a French door, so between the sensor and the base is 10 feet and a single pane of glass with direct line of sight. No signal. In fact, the only arrangement that seems to work is when the remote sensor is right next to the base. So, if you need 2 indications in the same space, this is the product for you.