Hi Radu,
In my case it would be modifying an existing Model A3.4, if possible.
As some kind of “in-service” indicator. (thus flashing instead of making the clicking-sound)

Unfortunately the link to the eBay listing is a dead-end as it is too long ago and no history shown, so I can’t see the technical details (impedance, load etc) of that piezo buzzer.

Hello World!

I’m Rob, from Hoevelaken in the Netherlands (to some Dutch it will be a very famous name) and have been into electronics for really decades.
I like to tinker, observe and see if things can be improved and/or find out how they work.
Science, in the broadest sense, has always fascinated me.

Whilst my education was deep into electronics since day-one, many, many moons ago, I always had an omni-interest in anything technical.
So a full-blown geek-guy, now at age.

One of my many interests includes our environment.
Where I run a weather station hooked into our national network, sharing various local weather parameters.
And radiation was one long on my list (also due to some background) but said vendor never got around for developing as such.
Until I ran across the uRADMonitor and recently obtained one. (unit #110000B6)

My current occupation, also for many years now, is in security.

I hope my unit & I can contribute in having more coverage of monitoring.

I do want to thank Radu for this dream-project & everybody else for their input.
Sharing=caring