Ecotest Terra dosimeters

Does anyone have an Ecotest Terra-P dosimeter?
I got one because of the alarm function plus the fact that battery lasts for months. Basically I keep it on all the time, just in case some radiation leak pops up at a nuclear plant.
So I set the alarm to trigger after 40 msv.
The problem is that it beeps every time it detects radiation, that’s like almost every second. And I only want to hear the alarm.
Is there a way to disable that beeping?
From the menu I could only switch between vibration and sound.

https://ecotestgroup.com/wp-content/uploads/2014/09/Terra_P-\_eng_2021.pdf

6.3.10 Switching audio signaling of registered gamma quanta and beta-
particles on/off
Simultaneously press and release the MODE and THRESHOLD buttons to switch
audio signaling off. A “——” symbol that briefly appears on the digital LCD indicates
that audio signaling is switched off.

Thanks! I have the MKS-05 model which is slightly different, but I found out how to turn off audio signaling of particles. You hold THRESHOLD until you enter edit more (things on screen start bliking), then press MODE until wireless icon blinks then press THRESHOLD to switch it off, then MODE again until you exit