Hi all!
I thought to add a very simple thermostat to control fan of optics baseboard, where lasers and their drivers are placed.
It switch on the fan when the room temperature is over 25.5° Celsius, turn off the fan when temperature drops to 24.5° Celsius.
I paid it 20 Euros cause it has also a 1 inch lcd display. Other models without lcd are cheaper...
I think I made a useful purchase.
Greetings.
Steve