Its funny you should reply today after posting this a while back. I just emailed several people at Tyco today
The problems I have experienced have continued and I am starting to get very frustrated. We have continued to install these panels against better judgement but don't have too much choice.
The percentage of customers getting low batteries is absurd. Just today we had a few. One customer had simultaneous (10 seconds apart) low batteries from the front and back door after being installed for about 18 months.
Two customers that have a large number of transmitters, one has 80+ and the other with 30+ are replacing batteries themselves over the past few weeks. Strangely, as they replace a few devices, within a day or so, a few more go into low battery, like clockwork.
Definitely some serious issues.