Negative I found the lack of backlight in alarm anspringe ends, and the really loud alarm sound, the neighbor is able to awaken with. For me, I have reduced the volume using the simplest of means:
Loosen the four small screws in the backside, a short nail in the black Kunstoffzylinder to the oscillating body (where it is, you can determine where you can chime in open housing, the alarm) slide. The oscillating body (metal plates) can vibrate less, thus creating "quieter" tones.
Can you fix the nail in which you put on the back of the case some paper (a little handkerchief) in the Kunstoffzylinder recording. The firmer pushes the nail on the metal plate, the quieter is the alarm tone. A fine adjustment I made up with 4 small screws. Attracted more solid, the more suppressed the nail on the vibrating body.