Quote:
Originally Posted by Myka
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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What if the two that are off are the ones with the right temps?