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  #1  
Old 04-30-2008, 12:58 AM
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rocketlily rocketlily is offline
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Default Thermometers

I am getting a 4 degree difference in readings between a Coralife digital thermometer (new battery) and 2 of the $4.00 floating thermometers (1 brand new). All are placed side by side in the tank.

I just wondering which one you would trust and what do you use.
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Old 04-30-2008, 03:30 AM
mseepman mseepman is offline
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The coralife is junk...the floaters are more likely right in my opinion.
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Old 04-30-2008, 04:08 AM
skylord skylord is offline
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Floaters for sure. I use a few floaters and my Profilux. I have a couple of digitals in the drawer....one day I guess I should toss the $50 pieces of junk. Its just hard to throw a $100 away.

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Old 04-30-2008, 05:01 AM
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I use $15 JBJ Digi-Temp thermometers and they all read the same as my AquaFX TDS meter (which has a thermometer on it too). My floaters read differently, as do the stick on ones. When I buy the JBJ ones I check all the ones on the rack, and you'll often see there is one or two reading a bit different...don't buy those ones.

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Last edited by Myka; 04-30-2008 at 05:05 AM.
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Old 04-30-2008, 05:19 AM
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Quote:
Originally Posted by Myka View Post
I use $15 JBJ Digi-Temp thermometers and they all read the same as my AquaFX TDS meter (which has a thermometer on it too). My floaters read differently, as do the stick on ones. When I buy the JBJ ones I check all the ones on the rack, and you'll often see there is one or two reading a bit different...don't buy those ones.

What if the two that are off are the ones with the right temps?
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Old 04-30-2008, 02:05 PM
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I say if there are 10 of them on the shelf and two are reading a different number, then likely the 8 that are reading the same would be right...so far it seems to have worked since they all agree with eachother right now, and all of them were bought at different times from different places.
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