it has infra red alarm and perimeter alarm system. it can differentiate the infra red signature of a dog from a human, and can memeorize the usual infrred signature of family memebers, it will give a chime if it is a regular/family or and alarm if the signature is new.
it has remote calling to cellphone, with remote arm and disarm.
but it never did have failed us during our test.
only draw back is its high uasage of battery
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