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The Home Security Alarm can be used for a variety of occasions: home, office, business occasions. It is not just a driveway alert, it is also wireless doorbell, you could use it as an intruder alarm, alleyway alarm, critter detector, warehouse monitor, garage and tool shed monitor, front door or walkway detection,wireless Visitor welcome doorbell. Sensor sensitivity performance Powerful:Entry Alert,PIR Technology,Our sensor uses state-of-the-art PIR sensor to detect any movement within the detection range. Perfect for long or hidden driveways and allows you a fore warning when guests are approaching.Home Security Alarm Working range is up to 70 meters, infrared sensing distance is 3-7 meters.