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microwave alarms

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Microwave is basically a bubble you control the size of and is not affected by air currents etc. It needs a body of water to set it off (a person). 


I like em because you don't have to have those ugly ultrasonic sensors, you can hide the microwave module away in the roof lining or under a carpet.


I guess you are talking about proximity sensors if you are talking about vandalism. When I was in the trade we did quite a lot of those with the Clifford systems and they worked flawlessly. It is all in the fitting and setup.

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