GEX thermometer

Decided to get some extra thermometers today for backup as well as for the Sump tank. the crappy Dymax conked out again. Heard a lot of good things about GEX, for those who don't know, GEX is a major Japanese aquarium hobby company. Nothing too professional but "Japanese" quality are still present in some of its products. Was shocked to find their submerged thermometer goes for $26 retail! More expensive than my American marine wireless temperature station. Was assured by C328 that it is the most accurate you can find and very popular among hobbyist. went for it anyway and picked up the glass mercury type thermometer from GEX as well. this one is only $3. this one is sure to be accurate, use the most reliable heat measure, mercury but unsightly nonetheless

True enough the GEX work well, i double tested it  with both lab use mercury thermometer and laser thermometer. the readings are exactly the same on all 3, unlike the American marine with deviations of 0.3+-, the worst is the dymax $10 digital thermometer i used to have, variations is +-0.7


so guys, go for the GEX digital if you are splurging, but the most value for money is the glass one. at $3 only