Did you know that thermometers are NOT accurate?

[Depth]

Did you know that regular mercury thermometers are INACCURATE?

This is the ultimate lab thermometer. I paid $40 for it, selling for $15.



- CheckTemp Thermometer w/ Probe -features large LCD, calibration check, superb accuracy, switch ?C or ?F (see it at http://www.sciencelab.com/page/S/PVAR/50-HI98501, orig. $39.95, SALE $15

 

[Deanos]

What time could I pick it up today?

 

[Depth]

After 6pm in Chelsea.

 

[Deanos]

Thanks! I'll pass.

:bump:

 

[Depth]

price drop to $12

 

[alistair]

Will you ship?

 

[Depth]

local preferred. Alistair, you've bought stuff from me before in the city. If you want, I can hold it for you till you have a reason to come into the city.

 

[ming]

Where did you get information that mercury thermometers are inaccurate?
Please give links and not word of mouth because I have never heard that.

 

[fritz]

I heard if you hold them by the mercury they are not accurate

 

[ming]

I heard if you hold them by the mercury they are not accurate

Depends if you're trying to find the temp of your hand, or the tank

 

[aaron23]

Did you know that regular mercury thermometers are notoriously INACCURATE?

this is a false statement, the only downside is the cleanup of a broken mercury thermometer.. they are VERY ACCURATE.

 

[Depth]

See the link I attached. It tells you about the sense of "false certainty" that mercury thermometers give. I don't remember where else I've read it. I had 2 thermometers on my tank - one mercury, and one digital - and they always differed by 2-4 degrees! That's why I bought the lab thermometer and used it a lot. When you're doing water changes, and if you have more than one tank, it is much preferable to have a mobile thermometer that you can immerse in different bodies of water than a static, attached to the tank wall thermometer. Mercury are hard to see, and can't give +/- 0.5 F accuracy.