Peter A Lane

It is not the fact that these alarms are not totally secure. They would be fine for the average private household. I tried to get some spare parts and was told the HSA 6000 system had been retired. That means the system has to be ripped out and the latest upgrade put in. A bit like going for an oil filter for your car and being told you need a new engine. Yale can stick all of their products up the relevant place, as far as I am concerned: A TOTAL SCAM!