Is there a way to eliminate the alarm sound in KW2?
I did find the option in my KW3 menu, but apparently in KW2 the menus are different, and I couldn't find the option to set that in case of alarm, there won't be any sound

it says in the manual:
"The KeyWatcher is equipped with 10 types of alarms that will be triggered for a variety of reasons. These alarms, when activated, will cause the KeyWatcher to begin sounding an internal alarm, as well as triggering alarm contacts contained inside the KeyWatcher, which may be wired to an external alarm panel. These alarms may be printed or canceled by authorized personnel."

My question is: Is there a way to disable that sound altogether in KW2?

Yes, if you got KW2 or newer version
Refer to the manual, page 27

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