a tip for you,do a really good survey of your home before you invest in an alarm system,how easy will it be for you to run cables,can you get access under the floor,can you get the bell wire outside ,and you dont need to spead pir,s around like confetti,just monitor the key points,this will save you a lot of money,and time and if you can avoid numerous units on one zone,unless you use a seven wire connection,if you use six you wont know what unit tripped the alarm,the radio system are very good,each unit is battery operated,you have a mains feed to the control panel,scantronic have a system i.on that has a wire free bell box,food for thought?
gts
August 2010