This Motion Sensor Alarm is perfect for protecting your property against unwelcome intruders. It can be situated to cover the front door, back door, garage, shed, outbuildings etc. It is also suitable for use on caravans and motor homes. It features a built in PIR motion sensor that will activate the alarm if any movement is detected. It is simple to fit, there are no wires to connect, just put the required batteries in, fix to a suitable surface. When the PIR sensor detects human movement the alarm will sound alerting you to a potential attack on your home or an intruder., Manufacturer: RFGTHY