incubator and thermometors

[eman]

I am new here so please excuse my ignorance...

I built an incubator out of a tote using a light bulb, dimmer switch, and a computer fan to circulate the air. I went out to Home Depot and purchased a digital thermometer with humitiy gauge but was not confident with its accuracy so I purchased another digital thermometer from petssmart. I can keep a contstant temp in the bater but the two thermometers differ. The one from Home Depot reads 102 deg and the one from pets smart reads 99.4 deg.

I guess my question is how accurate do I have to be temperature wise? Should I split the difference?

Thanks,
Eric

 

[Poison Ivy]

I just made one on tuesday and I have 4 themometers in it I had two but they were so off from each other. I then bought the two round ones from petsmart its for reptiles. They read the same as the acurite one from walmart. I have the acurite with a probe and I placed it in the water wiggler. It took me 3 days to get it right. So I'm going by the acurite one from walmart. I decided to do a trial run with just 4 eggs to see how it goes first.