Temp questions!

[Swissmiss989]

Ok so I have 3 thermometers in my incubater one digital and 2 are the fish tank thermometers with the red wanna be mercury stuff. My digital reads 99.5 and one of my normal thermometers reads 101 or 102. The 3rd thermometer is close to the digital temp. Which should I believe?

 

[Squawkbox]

Have they been calibrated?
You could take an average temp between them all perhaps.

 

[Ridgerunner]

I would not believe any of them unless they have been calibrated. Otherwise you really don't know.

Rebel’s Thermometer Calibration
http://cmfarm.us/ThermometerCalibration.html

Rebel’s Hygrometer Calibration
http://cmfarm.us/HygrometerCalibration.html

The other thing is whether or not you have a still air or forced air incubator. A forced air should be about the same temperature everywhere inside. Those are the ones with a fan. Since hot air rises, you can have a pretty big difference in temperature in a still air, depending on what elevation you are at.