Which thermometer do I belive!!

[EL Pato]

I am running 4 differnt ones and getting 4 differnt readings! This nuts. What brand do I trust? Im useing an accurite from walmart, I suspected it was off, becuase it is so slow to react, I went to lowes none of them had a humitity combo, so I bought one with an indoor/outdoor reader. This one gives two readings but they are both differnt sitting inches apart!

What are you guys useing with your succesfull hatches??

Should I hit up the pet shops? maybe a reptile or aquarium one will work? I need this to be perfect and need to set these eggs tonight

 

[CrazyChickensEverwhere]

I was a incubator warehouse one, and It does a fine job considering I hatched chicks with it... Thats what I use.

 

[rebelcowboysnb]

http://cmfarm.us/ThermometerCalibration.html

Medical thermometers....

 

[pascopol]

Quote:
Firts of all how can you "Calibrate" analog and most digital thermometers???

"Calibrating" to me means you can adjust and correct it's reading to another reading believed to be true.

Can anybody show me how to "adjust" any analog mercury or alcohol thermomether?



All you can do is to "COMPARE" uncertified thermometer reading to a trusted thermometer reading, and then take mental adjustment (+ or - degrees) regarding uncertified thermomether (if there is a difference).

 

[bburn]

We have all had the same issues.

The two I got with the incubator and egg turner read completely different. As did the other SEVEN I bought. Finally I went and got the aquarium thermometer. Seem to run the most true. I ended up taking an average temp and it worked out for me. Hatched 32 chicks out of 41. One light bulb, one blood ring and one I had to cull. The last six never hatched.

I gave up on the hygrometer.

 

[EL Pato]

This is first attempt at hatching, I built an incubator and was lent an old I mean lab bactiria incubator that I was told keeps constant temp to .05 degrees. They used it to hatch quail in the 70's.

Im betting my money on the lab incubator if I can ever get the right temp. I may go pick up an aquarium one in a bit. I am useing a home thermometer right now to try and average out the temps. Any one ever use that kind? Its the kind you push a button and stick under your tounge. I figure that one has to be true

 

[rebelcowboysnb]

Quote:
Firts of all how can you "Calibrate" analog and most digital thermometers???

"Calibrating" to me means you can adjust and correct it's reading to another reading believed to be true.

Can anybody show me how to "adjust" any analog mercury or alcohol thermomether?

Can't wait for a challenge.


All you can do is to "COMPARE" uncertified thermometer reading to a trusted thermometer reading, and then take mental adjustment (+ or - degrees) regarding uncertified thermomether (if there is a difference).

How about giving useful information. You can define words how ever you want but the word calibrate has always been used that way with thermometers. An what that link says works.

 

[pascopol]

Quote:
Firts of all how can you "Calibrate" analog and most digital thermometers???

"Calibrating" to me means you can adjust and correct it's reading to another reading believed to be true.

Can anybody show me how to "adjust" any analog mercury or alcohol thermomether?

Can't wait for a challenge.


All you can do is to "COMPARE" uncertified thermometer reading to a trusted thermometer reading, and then take mental adjustment (+ or - degrees) regarding uncertified thermomether (if there is a difference).

How about giving useful information. You can define words how ever you want but the word calibrate has always been used that way with thermometers. An what that link says works.

You want to redefine word "calibrate" ?

Calibrate http://www.thefreedictionary.com/calibrate

" To check, adjust, or determine by comparison with a standard (the graduations of a quantitative measuring instrument):"

How can you adjust analog thermometer?

There is no screw or dial to alter it's reading.

You can "calibrate" some analog hygrometers by salt method, turning the screw to get it to proper reading.

You can not CALIBRATE analog thermometer cause there is no screw or dial to CHANGE OR CORRECT its reading.

I stand by my opinion: You can not CALIBRATE any analog thermometer, all you can do it to COMPARE it with other model thermomether and take MENTAL adjustment to correct potential error.

So most of Thermomether "CALIBRATION" advice on the web is bogus and BS.

 

[rebelcowboysnb]

What this has to do with the OPs question I dont know but...
" To check, adjust, or determine by comparison with a standard (the graduations of a quantitative measuring instrument):"

Ability to adjust is not required to calibrate.

 

[speckledhen]

You can calibrate a digital hygrometer as well as an analog one by definition, even though your "adjustment" is only adding or subtracting the percentage that it's off by to determine your humidity reading in the incubator:

" To check, adjust, or determine by comparison with a standard (the graduations of a quantitative measuring instrument):"


Let's not quibble over that. It's not helping the OP much. To the OP, I use a thermometer that is highly accurate and made specifically for the job (Spot Check by Brinsea, also called Egg-Temp by GQF), unlike household thermometers. By law, household thermometers can be off by a couple of degrees and still be considered accurate, too much variation for incubating. One may be close to accurate the first few times you use it, then slide away from accurate the next time.