How accurate are glass thermometer vs digital?

  • We are currently upgrading MFK. thanks! -neo
I'm gonna say your glass one is better. Any coralife thermometer I have ever seen has read like 10 degrees off. I just have the stick on ones on every tank.
 
Ive been using the glass one for years. They work fine. Just check them against another one. If tthey are close should be fine.
 
digitals are great untill they are out of calibration
 
msjinkzd;3793043; said:
I use an infrared temperature gun instead of thermometers. Just have to make sure you are measuring the water not the glass.

I agree.Got one on the reccomendation of a friend.Best new fishroom tool Ive gotten in a long time.Can just walk through checking temps.No fishing around for glass thermometers,trying to get the right angle to read the stick ons.Or dealing with those major pita digitals.
 
I have a sticker on the outside of the glass thermometer ,,was a $2 investment and has been on my tank 7-8 yrs..I have checked it with other types and it has never varied more than a couple degrees. im sure heaters fluctuate too so im staying with it. Thats close enough for me .. lol
 
BadFishPa;3795126; said:
I have a sticker on the outside of the glass thermometer ,,was a $2 investment and has been on my tank 7-8 yrs..I have checked it with other types and it has never varied more than a couple degrees. im sure heaters fluctuate too so im staying with it. Thats close enough for me .. lol
Ditto, and I usually stick with fish that are near bulletproof. I'm a sucker for low maintenance.
 
msjinkzd;3793043; said:
I use an infrared temperature gun instead of thermometers. Just have to make sure you are measuring the water not the glass.

Nice! Got one of those at work. Nice and quick.

I actually just found my first/old digital thermometer. It's a Coralife, lol. Thought I put it on one of my tanks to see if it still works. There's a temperature reading, but I just did a water change when I found it. I'll check it tomorrow to see if it matches what I set the heaters to.
 
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