Review on Enhanced Home Security: GE 12752 Wireless Door Entry Grounded - Easy Access, Maximum Protection by Robert Arneson

It worked so well that I spent a lot of time installing it. A reset was often required. Turn the device off and on a few times to hope for a connection. Sometimes it worked in reverse and turned on the power when closed. Now he just walked out. New batteries, still no response. Looks like it took 6 months. If anyone ever makes something like this that works reliably it would be nice if it could be triggered when the door is closed instead of staying for 20 minutes.