This alarm features a 3 digit programmable security code. Visitor chime mode sounds pleasant tone instead of alarm, when selected. Programmable entry time: 3 - 15 - 30 sec. Programmable exit time: 10 - 20 - 30 sec. Powerful built-in piezo siren: 105dB. Portable and ultra low consumption. Power supply: 3 1.5V AAA-battery (not incl.). Dimensions: 2.2" x 4.0" x 1.0" weight: 2.5oz.
