The KombiSIGN 70 sounder element with self-regulating sound level offers new perspectives in this regard.
Permanently measuring the surrounding noise level
The alarm adjusts its sound output to the ambient noise level by permanently measuring the current conditions. It exceeds this to such an extent that the sounder can be easily heard but is not irritatingly loud. For people in the immediate proximity this reduces unnecessary noise pollution, but at the same guarantees that the signal is still heard.