Had a Secom hard wired system with integral keypad for 17 years with no false alarms, 2 years ago decided to have a new panel installed with dialer and we have had 2 false alarms since, one when we were on holiday which put relatives in a panic. The new system is a Scantronic 9651 hard wired control panel using the same hard wired sensors that existed. Has anyone any knowlege of the reliability of this unit please.