SV2002F siren is designed to complete fire alarm systems in flats, shops, offices, warehouses and etc. under cover. Supply voltage: 16-30V. Consumption in alarm mode: 80mA at 24 V. Sound pressure at distance 1 ft by the axes: 112dB. Frequency range: 2.9 – 4 kHz. Flashing light with frequency 2 Hz: 0.6W.