Intruder Alarms

Reading the tecnical specification for the honeywell Accenta compact it says its maximum battery size is 2.1 A/h. As 2.1 A/h are getting harder to find, (ie they are now 2.2 or 2.3 A/h) is the size critical or is there a slight tolerance?

I have a need to add 2 (ideally 3) door contacts onto a single zone on a texecom premier 48. I have tried putting resistors in each device but this wont work. I have looked in the manual and its not very detailed. It it possible or do i need to buy an expander such as the 8xe? Thanks Eddie

HI I recently purchased a Menvier SD3 order number 3122 and have been having issues with it reporting 'line fail' I have checked the sim is ok by using it in my own phone and have tried another sim from another network. The aerial is undamaged but i cant get this to work. Am i missing something basic. Barry

Hi Im looking to install an alarm in a house and im unsure the best place to mount the sensors, and what areas i should cover.

Hi I need to install a system to protect a secure shed. I dont want to spend more than