This wireless PIR motion detector alarm with keypad is quick and easy to install, and requires no wiring or mains power as it is battery operated. The PIR (Passive Infra Red) Motion Sensor Alarm can be wall mounted or free-standing. The device detects the movement of any intruder and attracts immediate attention through the ultra loud alarm. This device can be activated and deactivated by entering a security code via the keypad which is re-settable for added convenience. Main Features: Alarm triggered on detection of movement Alarm delay function to enable planned disarmament Easy installation Instruction leaflet Included Burglar deterrent window sticker Included 4 digit re-settable security code Technical Data: Alarm Output: 130dB 4 x AA batteries required (not included) Weight: 118 g Dimensions: 13 x 6.8 x 4 cm Batteries Included?: No Batteries Required?: Yes 1 Year Manufactures warranty included