Universal radio transmitter with two inputs for securing up to 5 window sashes with wired opening detectors per input. Connection terminals for alarm lines 1 and 2 (each selectable as NO or NC with end of line resistor) and a tamper line. Up to 5 magnetic contacts can be connected in series. As an alternative to connection 1, an integrated reed contact can be used; a bar and a ring magnet are supplied for this purpose. The transmitter can optionally be used to connect one or two 9000WS water sensors. Settings via DIP switch. Radio frequency: 868MHz. Power supply: alkaline battery AA 1.5V (supplied). Occupies one or two addresses in the 9000 system. Operating temperature: -10°C to +40°C. Color: white. Dimensions: 25 x 110 x 23mm.