This the alarm I have on the house, I just bought a couple of extra door contacts for the shed & garage. It's all wireless/solar so easy to install, all the contacts & PIRs are set to one house code using internal switches.
Friedland Response Wireless Intruder Burglar Alarm SA3: Amazon.co.uk: Electronics & Photo
Friedland Response Wireless Intruder Burglar Alarm SA3: Amazon.co.uk: Electronics & Photo
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