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  • Member For: 19y 7m 11d
  • Gender: Male
  • Location: SW Sydney
Posted

They used to when we had to unlock cars with a dead battery, lock car with remote - alarm active - unlock car with key and open door - alarm goes off..

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  • Legacy Donating Member
  • Member For: 16y 10m 29d
  • Gender: Male
  • Location: Sydney
Posted

I have an infrared beam on the front boundary line of my property. Should anyone cross it, there are buzzers inside the house to alert that there is someone on the property.

Who makes this kind of system, and where can one get / look at it? The only decent photoelectric beam system I found was marketed by Bosch and it isn't exactly available to the public at a reasonable cost. I have experienced similar close calls in my front yard.

No better deterrent though than an obedient dog though. Just make sure it's a smart breed. I can tell my cattle to stop barking with a quick command while I investigate ... he also barks differently depending on what he's reacting too ...

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