1/ The sound is "vibrating" style what is good, 2/ the sound level offered is 130dB, but my impression is that the sound is close to 110-120 dBa and it cannot be so helpful from 10 metres or longer distance (compared with other alarms I use).
1/ The sound is "vibrating" style what is good, 2/ the sound level offered is 130dB, but my impression is that the sound is close to 110-120 dBa and it cannot be so helpful from 10 metres or longer distance (compared with other alarms I use).