Maybe a dumb question about thermometers...

[Graphite91]

So... Lets say I have two glass aquarium thermometers in my incubator. They both read EXACTLY 100 degrees F. Can I assume they are accurate, since they both say the same thing? It would be pretty rare that I have two that are off exactly the same amount, right? I hope so.

 

[gatorshark75]

So... Lets say I have two glass aquarium thermometers in my incubator. They both read EXACTLY 100 degrees F. Can I assume they are accurate, since they both say the same thing? It would be pretty rare that I have two that are off exactly the same amount, right? I hope so.

whats the lowest and highest temps on them

 

[Graphite91]

the lowest and highest temps? Well the range they can measure is 30 to 120, if thats what you mean.

 

[gatorshark75]

the lowest and highest temps? Well the range they can measure is 30 to 120, if thats what you mean.

thats exactly what i needed to know take a glass fill it with ice then put the thermometers in it the temp should read 32 if it does they are correct and calibrated if not they are wrong did that help you i hope so thats the only way i know how to check them since they only go up to 120

 

[mortie]

Crushed ice works best for this and you'll want to also put water in the glass. Just enough to cover the ice. Then let it sit a few minutes to get the water cold then put your thermometer in. Make sure it's not too near the edge of the glass. As stated, it should read 32.

 

[HatchCraft]

Comparing against a fever thermometer works also. Warm water in an insulated cup at or near 100 deg. This will get you within 1/2 .