Innovative alarm system for retrofitting. The technical features are: Possibility to focus and to defuse by the factory's remote control as well as to connect radio contacts. No special software is necessary. glass-breakage sensors are connectable, small construction method, panic alarm modus, anti-theft and attack function (jamming function) and a gas alarm is connectable. Technical data: power consumption while Alarm is on 3,5mA, supply voltage 11-15 Volt, operation temperature -40°C to +85° C. Dimension control unit: 83x62x26mm, weight 97g.