Best thermometer

pauldoit

Member
Sep 4, 2012
51
0
6
Belgrave, Melbourne
I've worked in a NATA accredited laboratory for many years. If your new unit comes with a calibration certificate then trust it, if it doesn't then it still might be ok but you will never know. We had a variety of thermometers up to around 500 each. I've bought a hanna 9815 and it came with all calibration certificates. I'll still get a good glass therm one day as they don't drift much over time like the electronic ones do.
 

Nat's Fish

Member
Nov 14, 2011
514
1
16
Thanks for that. It mentioned calibration.
Hopefully it works ok. It would have to be better than these usual aqua one things that drop 5 degrees randomly. I'm happy with the price & it should last a while fingers crossed
 

pauldoit

Member
Sep 4, 2012
51
0
6
Belgrave, Melbourne
It's a well known brand hanna. They sell cheap but good stuff and also high end expensive gear. I reckon it'll be a lot better than any brandless meter and better than my multi measure therm probe. My cheap therm are 0.4 to 0.7 out. Write their error on a label then u can correct for it
 

Nat's Fish

Member
Nov 14, 2011
514
1
16
Thanks for that. Some were a few hundred but they said this will do the job.
I plan on testing all of my tanks frequently and will monitor any changes
 

Nat's Fish

Member
Nov 14, 2011
514
1
16
I tested all of my new tanks with this new thermometer and wow!
Some of my thermometers were out by 4 degrees!
Out of the old style mercury ones the Sera brand were accurate or 1 degree Celsius out, the aqua ones and the rest were terrible. I wouldn't waste my money on them. The digital ones even worse!

My massive electricity bill should now drop down that I have put a few heaters down 3 degrees :)