Low profile piezoelectric siren, for indoor use. Certified for EN50131 Grade 3 installations. Environmental class II. 115 dB sound power. Tone selectable as continuous or alternating. Incorporates box and wall tamper. Power supply: 6 to 14 Vdc. Max consumption: 120 mA. Dimensions: 115 x 115 x 32 mm. White ABS plastic box.