KIDDE smartcell white siren and ceiling beacon (white vad), completely wireless. 32 siren tones, individual addressing. 868 mhz bi-directional communication, anti-tamper locking mechanism. output level 92 db(a), flash colour white. white colour. dimensions 110 x 79 mm (ø x d). weight 0.2 kg, ceiling mounted. cpr certification en54-3/13/23/25