4VWIN Wireless Home Security Driveway Alarm 1 Receiver and 1 PIR Motion Sensor Detector Infrared Alert System Kit

4VWIN driveway alarm provides a convenient and economic way to alert you the moment when someone enters you house,garage or other properties.When movement is detected, the Passive Infrared (PIR) sensor sends a wireless signal to the receiver unit from up to 400 feet away.Using the receiver unit, you can choose to be alerted by a high or low chime.Box Contains1 PIR Transmitter 1 Receiver 1 Instruction Manual 3 Wall Plugs 3 Screws WarningContains small and pointed parts,please be careful with use and keep out of reach of children.