The MA20 MkII mini PIR alarm is a freestanding or wall mounted programmable alarm which can protect your property from a break in. Sound level - 120db. This alarm can either be wall mounted using the bracket supplied or used freestanding for portable use. It is operated using a 4-digit user access code with the keypad on the front of the alarm. Product size - 14cm x 6.5cm x 3.5cm. The system has 2 operating modes: alarm and chime. The chime mode is a low security feature that will produce a door chime sound when motion is detected, whereas the alarm mode produces a constant high volume alarm sound when triggered. Detection distance - 6 meters, with approximate angles of 110 degrees horizontal and 70 degrees vertical. Recommended installation height of 1.8m. Manufacturer: Minder.