A sensor and a receiver.
Door entry and driveway alert systems.
These units can provide reassurance for people who live in homes with long driveways you ll know when someone is coming down your driveway before they suddenly appear in your yard.
But driveway alarms are also just useful for non security issues.
Central alarm systems can even alert law enforcement or an outside security monitoring firm.
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Driveway alarm sensors consist of two main parts.
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You can use driveway sensors as standalone units or as part of a larger security system.
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A driveway alert system can set off a chime inside the house when someone drives on it letting you know when a guest arrives or your significant other returns with groceries.
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