Temperature Issues

[TinyReef522]

I am not sure what to make of this all 3 probes are in the same area of the sump. The room temperature is about 72-73 degrees so I have a hard time believing the temperature is around 85. Any advice?

 

[LuizW13]

For curiosity, what reading will you get if you spread the probes around to different areas of the sump/tank?

 

[gbroadbridge]

Put the probes into iced water and see if they measure 32

 

[TinyReef522]

For curiosity, what reading will you get if you spread the probes around to different areas of the sump/tank?

Tried this yesterday and they all stayed relatively the same to what they're reading now.

 

[TinyReef522]

Put the probes into iced water and see if they measure 32

Have not tried this but I will.

 

[Joj]

Those black digital thermometers are notoriously inaccurate from my experience with them. I see from my experience that those cheapy floating glass thermometers measures accurate when compared to my Pymeter digital temperature controller probes.

 

[jda]

Get something with mercury in it - gonna be more accurate than any digital or probe based sensor. Those little guys are cheap tools and not made to be precise. Use a mercury thermometer to just know how off that they are.

 

[Reef Wizard]

I had one of those digital ones in the beginning and it never got exact it was always 2 degrees higher. My hyrdos temp sensor seems more reliable. I use it with my ato on the small hydros x2 controller. The other digital I had never got above 57 degrees for some reason

 

[dadnjesse]

Those are cheap thermometers but your tank could be at those temps. With the lights on it won't stay at room Temp.

 

[Aspect]

Tank is going to run much hotter than room temps due to lights/equipment warming the water. Especially if you have a UV sterilizer as well.

 

[gbroadbridge]

Get something with mercury in it - gonna be more accurate than any digital or probe based sensor. Those little guys are cheap tools and not made to be precise. Use a mercury thermometer to just know how off that they are.

Do they even manufacture Mercury thermometers these days?

I thought they were banned.