Once movement is detected the alarm will turn on.
The Driveway Alarm also has a chime mode to alert you as well. This alarm has many functions. It can be used to let you know when a child is leaving the home. It can be used to alert store owners when customers arrive. Keep an eye on almost anyone of your assets. You can use multiple units in 1 location. Only 1 sensor can be used per receiver.
Very Easy to Install, portable security wherever you need it; Home, Apartment, Trailer, Boat, Storage, Motor Homes, Camping, Hotel, Attic, Driveway.
Features: Including PIR Wireless sensor and receiver, Wireless RF Transmission up to 400 ft., PIR sensor detect motion and trigger receiver turn on alarm or chime, Sound Hi/Low switch, Alarm/Chime/Off Select Switch, PIR wireless sensor 9v battery (not included) operation, Receiver 3C size batteries (not include), Compatible with DC adaptor (not included DC 6V 200mA, 120v 2 flat pin adaptor) for receiver unit, Battery low indicator LED for transmitter and receiver, Trigger flash LED, No wiring, easy to install, Water resistant for PIR wireless sensor.