for general applications ABS wired siren operating voltage: 5.0 ~ 15 VDC current consumption (at 12Vdc with siren): 400 mA osc. frequency: 1.5-3.5 kHz sound pressure level (at 1m): 110 dBA dimensions: 80 x Ø75 mm weight: 115 g mounting holes: 55 x 39 mm (EN)