Reptile & Amphibian Forums

I am hoping someone may be able to enlighten me with why I am getting diffrent readings.
I have 3 temps guns
1) A "Temp Gun PE2"
2) B Raytek Mini Temp
3) C Fluke Mini Temp 62

Pointing each laser at the same spot -Black ( within 12mm sq)
A gives me 87.3 to 86.8
B gives me 90 - 91
c gives me 87.5 - 88
I also attached a probe with a digital read out wich gave 87.8

Then I done the same test pointing at white paper.
A gave 85.3 to 85.7
B gave 89.
c gave 86.5.

Then I tested them on a white tile with cooler temps
A gave 67 to 67.1
B gave 66 - 67
C gave 67.5

The temp gin PE2 gives you the option to calibrate it which I did.
As you can see on the cooler spot there is only a diffrence of 1 degree. On the hot spots (black) there is a diffrence of 4 degree
and on the white, there is a diffrence of just over 4 degree.

I would appeciate any suggestions why this is? A 4 degree diffrence is quite a lot and I am totally unsure what to do. Does anyone recommend a more superior temp gun?

Thanks
Alan
www.rhinovivs.eu

I have the PE2 as well and it always reads a few degrees cooler than both of my helix probes and mercury thermometers. That would explain why i hatch a few male leopard geckos when i shoot them at 81/82 degrees. Thanks

these types of temp guns. This price range of temp guns is only accurate to within about 2 to 3 degrees F at best of the true temperature when measuring within the 80's and 90's range. The cooler the temps measured, the more accurate they get. To get 1 degree F accuracy on a consistent basis, you will need to spend considerably more. Good mercury thermometers are the most accurate, but obviously not nearly as easy to use.

Kelly