Bus outdoor siren basic module without cover, signals alarms, status of switching outputs and system activation acoustically and visually. Volume of the piezo siren: 110 dB(A). Occupies an address in the 9000 system. Power supply via bus, quiescent current consumption: 5mA, I-calc =50mA. Emergency battery: 4.8V / 1800mAh (included, spare battery: item no. 32094), battery charging time: max. 72 hours. Operating temperature: -25°C to +60°C, protection class: IP44. Dimensions (with cover): 200 x 300 x 70mm. Cover in stainless steel or white also required (9000AS-ST / 9000AS-AW).