OK, not sure if any of you can offer suggestions

Some 30 years ago a gardening friend gifted me an old mist unit he had
but no longer used, so its most likely in excess of 50 years old.
It works on sunlight rather than moisture, it has a little window and
the stronger the light that falls on this the more frequent the misting.
I dont use it for propagating but for the last 30 years it has been
keeping the large greenhouse humid and stopping drying out.

It has stopped working, thinking I had perhaps had my value from it! I
have just looked on line and cant find anything similar

Are any of you aware of a similar product? I could replace with a
conventional mist unit but I have got used to the sunlight activated one.

I am about to start investigating which bit has failed, 24v supply
transformer, the actual controller or the solenoid valve.
--
Charlie Pridham
Gardening in Cornwall
www.roselandhouse.co.uk