Boiler pressure gauge monitoring

[scasic]

I have Viessmann Vitoplex 300 boiler and i would like to monitor water pressure inside it.
There is already dumb pressure gauge, is it possible to change it with something more smart ?

I have also rfxcom transceiver which i use for monitoring different systems using wireless sensors (motion, temperature, humidity).

So maybe it's also possible to use rfxcom somehow for this purpose?

[Henk]

Search for digitale manometer on Google and sure you will find something but likely very expensive.

If you want only a warning if the pressure is too low you may modify the current meter (or get a cheap replacement meter) and put a light sensor on top of it what will "see" the red needle

Henk

[scasic]

Henk,
thank you for reply.

As you said i found digital manometer (1-wire/RS485) and it's quite expensive ~200$.

Probably, you are right. for example i can set up cheap camera on front of analog manometer and process images from it to get pressure value.

[AshaiRey]

Depends on how handy you are otherwise you can make one for about 40 euro (all in) since i can think of several solutions right now.