FeaturesEasy installationAll directional mounting bracket120 degrees wide angle detection2 modes - alarm or door entry chimeExit delay-45 seconds, entry delay-30 seconds, sound-30 secondsPowerful 110dB siren when movement is detectedIdeal for homes, sheds, garages, caravans and storeroomsPower: 3 x AAA alkaline batteries (not included)PIR motion detector alarmThis ProperAV Motion Sensing PIR Alarm is an easy to use keypad controlled alarm and is suitable for anywhere in the home or business. Simply set a secure 4-digit passcode and the loud 1100Db alarm will sound when any movement is detected.The system has 2 operating modes: ALARM and CHIME. Chime Mode is a low security feature that will produce a door-chime sound when the alarm is triggered. In Alarm Mode the device will produce a constant high volume alarm sound when triggered. Exit delay-45 seconds, entry delay-30 seconds, sound-30 seconds.