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