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Aquarium and set up/issues General tank, water and set up questions and answers

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  #21  
Old 13-08-13, 03:15
pauldoit pauldoit is offline
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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.
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  #22  
Old 13-08-13, 03:30
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Nat's Fish Nat's Fish is offline
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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
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  #23  
Old 13-08-13, 06:07
pauldoit pauldoit is offline
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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
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  #24  
Old 13-08-13, 07:07
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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
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  #25  
Old 19-08-13, 06:43
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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
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