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Old 02-05-2010, 06:40 PM   #1
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thermometer

whats the best place to put a digital thermometer in my aqurium. most accurate placement. my heater is on the back wall in the center.

thanks
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Old 02-05-2010, 06:45 PM   #2
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whats the best place to put a digital thermometer in my aqurium. most accurate placement. my heater is on the back wall in the center.

thanks
As far as possible away from the heater, so that would be at the front in a corner.
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Old 02-05-2010, 06:55 PM   #3
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ok thank you. that is where my original thermometer was. i wasnt sure of the placement. thank you
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Old 02-05-2010, 06:57 PM   #4
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Yes I've placed mine on the far wall at the front. Pretty much draw a diagonal line to the other side of your aquarium.
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Old 02-05-2010, 08:33 PM   #5
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i have one on each side of the tank... keeps me sure that the tank is heating evenly.. one up high on the left, one down low on the right
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Old 02-06-2010, 06:00 PM   #6
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I would also check the digital against a glass (or even a plastic) thermometer. I have yet to see a digital that wasn't off by 1 or 2 degrees from actual. Glass and even the cheap plastic seem to be spot on to a laboratory grade glass thermometer.
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Old 02-06-2010, 06:12 PM   #7
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I prefer to use Ranco/Aqualogic temperature controllers as they are always spot on ime, but we use these at work when we need to double check: 39240 - Waterproof Stem Thermometer (usually under $20.00 online).
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Old 02-07-2010, 05:32 PM   #8
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Thanks for the post James. I ordered one of those Stem. Going to check that against my glass and plastic thermometers and my Ranco controller (which is +2 degrees from the glass and plastic thermometers).
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Old 02-09-2010, 12:52 AM   #9
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Ahh but which is right????
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Old 02-10-2010, 05:57 PM   #10
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Now that's a really good question!
Every DIGITAL thermometer is about 2 degress higher than my Mercury glass (Tropic marin) and plastic thermometers.

Think I'l bring the new protable digital and the glass to one of the labs at work when I can get back there and ask a tech to do a calibration test on all of them.
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