profilux shows incorrect temperature

[progman]

analog thermometer shows 29 Celsius degree of water but digital sensor with profilux 3.1 shows 24 Celsius degree same water
How to correct profilux sensor?

[Matthias]

click "adjust temperature" in the temperature dialog

a discrepancy of 5°C is more than suspicious, better double check against a third meter

[progman]

I have two tank in one room freshwater 400L and saltwater 400L and two profilux 3.
First profilux shows 26.4°C ( freshwater ) second shows 25.2°C ( saltwater )
One room must be one temperature of water, right?
I bought analog thermometer today. It shows 29-30°C in both tank
It shows 35°C as my temperature :-)

[Matthias]

One room must be one temperature of water, right?

no, this depends also on the illumination, pumps and all other devices which may produce heat