The wall sounder has 32 different tones, of which the following four tones have been tested according to EN 54-3: Alternating tone 800Hz/1000Hz, Continuous tone 970Hz, Slow Whoop tone NEN 2575, DIN 33404 tone.
The tone is selected via DIL switches. If the sounder is actuated via 2 control panel outputs, it can also be ope- rated with an alternative tone. In this way, multi-stage alarming with 2 different tones can be implemented. The sound level is adjusted in 4 steps, by means of DIL switches.