Multiple Thermometers, All with different readings

[joneus]

I'm sure this has been asked before- but I'm asking again:

I've got 4 thermometers in the incubator

#1 (non-digital standard indoor/outdoor thermometer) says 102-103 degrees
#2 (non digital AccuRite w/ Hygrometer) says 100 degrees
#3 (digital AccuRite w/ Hygroeter) says 99 & rising
#4 (digital Egg-O-Meter) says 98.6 degrees

Averaged out, I get 100.1 degrees, but I have no way of knowing which, if any, are right. Should I just accept the average & not sorry about it?

 

[h4ppy-chris]

are they all at the same hight? also lay them flat at the same hight. let me know what readings you get

 

[Arielle]

I first tested my thermometes ( non digital) in a mug of hot water about 100 degrees and then looked at them for variabilities in the measurements. Seemed easier than putting them in the incubator; THe readings change too fast when I raise the lid of incubator to get a good reading.

Doesn't address accuracy though.