Themometer?????

ramhatch

Chirping
8 Years
Mar 15, 2011
58
3
51
I am in a pickle, i have a them that will read accurate for a lil while then it will be off by 3 or 4 degrees.
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What is the best themometer/hygrometer out there. The one i am using is a acu-rite digital.
Thanks
Ramhatch
 
acurite is not as acurate

I like the SPRINGFIELD PRECISE TEMP about $8 dls at walmart

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dont forget to calibrate the hydrometer with the salt method
 
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I use a 1.99 glass aquarium thermometer and the cheapo reptile enclosure hygrometers. Here's how I calibrate mine... I look through all of them on the peg in the store and if one is way off from the rest, I DON'T buy that one. I'm cheap and lazy but most of mine are within 1 degree or 1% of my more expensive wet bulb setup. I have tons of digital units (the Springfield seems the most consistent) but the temps are never consistently accurate on any of the digital combo units. The hygrometers on the other hand I have found to be fairly close most of the time.
 
Place the salt in the bottle cap (or other small container).
Dampen the salt with water. Do not put so much in that the salt gets "sloppy". You want a damp pile of salt in the bottle cap.
Place both the hygrometer and the bottle cap full of damp salt in the ziploc bag and seal it well. (It is important not to let air on or out while the test is going on.)
Keep it like this for over 8 hours.
After 8 hours in the damp salt environment, the actual humidity inside the bag will be 75%. Compare it to your hygrometer, your hygrometer should also read 75%. If not, you will then know exactly how far off your hygrometer is. If it's off, note the amount and direction that it actually reads and be sure to add or subtract that amount when reading the hygrometer. If the hygrometer has a control to adjust it (either the needle or the display), you can set the hygrometer to 75% immediately after the test.
 
Thanks for all the suggestions. And thanks D&S for the salt check info, i had never heard that before.
 
I got another digital thermometer with the tail sensor. Can I put the lil sensor end in ice water to check it. If so what should it read in ice water?
 

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