can a thermomether be regarded as accurate if the probe

[3bavboys]

is placed in the sump area of a wet dry ?
or must it be place inside the aquarium itself ?

 

[gwh57]

The temp may not be much different but I would test it in both places first. FWIW I have my temp controller in the display.

 

[earlybird]

I plan on having one in my sump and dispaly. They're pretty inexpensive even the digital ones.

 

[bigarn]

JMO .... but I'd have the probe in the main tank.

 

[3bavboys]

ok thx everyone - i'm gonna keep it in the main display tank - i just want oto reduce clutter there

 

[promisetbg]

I have always had mine in the sump, and we keep the probes in the sump for the controllers at work without issue.

 

[hatessushi]

It's important to keep the thermometer in a part of the water before it gets to the heater. That can be in the MT or the sump. In other words the temp probe should be upstream from the heater.