Maybe im missing something here but ,unless it self tests ie beeps on start up etc .

Never gonna know if it really works as with anything electrical can go down at any time.
Need a visual display like the needle but more accurate so digi readout to be fitted.
Probably gonna renew hoses rad thermostat as a precaution cost permitting.
Anyone fitted a manual fan switch or extra slimline fan as a precaution both on a toggle switch.??
