Features: Wireless Door Infrared Bell Alarm For Shed Garage ,Caravan Security Keypad Alarm Fits onto your shed, garage, barn door or window Loud alarm signal – approx. 110 dB siren Size: about 13 x 8 x 4cm Colour:White Material:plastic Model:Security Keypad Door Alarm System Panic button: Adjustable security pin code operation 3 x AA battery operated (not supplied) 3 settings: Instant, Delay Chime Instant Setting: 110 decibel siren will sound immediately until security code is entered Delay Setting: 10 second delay to enter security code before 110 decibel siren is sounded Chime Setting: To alert you when a guest enters, or as a warning if a young person opens the door Process for Code setups: Set your own code by first pressing the unit's default code: " 0000 + * ", Now enter your own code by pressing for example: " 123 + * " To arm: press 123 + # red light comes on for 10 seconds To disarm: press 123 +# TWICE!! Red light then flashes for 10 seconds and the unit is closed down. Package Include : 1 x Wireless Door Alarm(with installing wire)