Underwater Treasures Easy Read Fish Thermometer

$10.69 Chewy Price
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About This Item

Details

  • Attaches to glass aquariums (sold separately) via suction cup for convenient placement wherever you need it.
  • Battery operated to help save valuable plug space.
  • Accurate to one degree fahrenheit.
  • Compact design is fully submersible.
  • Solid plastic casing helps prevent breakage and protect your fish.

Questions & Answers

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2.7
Rated 2.7 out of 5 stars
11 Ratings

4 Customer Reviews



Rated 1 out of 5 stars
By Chris on Aug 3, 2025

Died within two days

The suction cup was one of the rare ones that held well, but I noticed the readout fading after a couple of days. Replaced the battery (it comes with two) and once

The suction cup was one of the rare ones that held well, but I noticed the readout fading after a couple of days. Replaced the battery (it comes with two) and once again, it failed in a day. I don't think the battery compartment was fully waterproof; there appeared to be corrosion. I'd avoid this one.


Rated 1 out of 5 stars
By Angela on Nov 18, 2024

Crapped out quick

This didn't even last a month before it crapped out..do not waste your money

This didn't even last a month before it crapped out..do not waste your money


Rated 2 out of 5 stars
By Evets on Apr 13, 2023

Only worked for a couple weeks

Bought 2, placed them in separate tanks. Have been using them for just under 12 weeks. About 1 month ago I noticed the display fading on 1 of them (can't see the

Bought 2, placed them in separate tanks. Have been using them for just under 12 weeks. About 1 month ago I noticed the display fading on 1 of them (can't see the numbers). 2 - 3 weeks ago I noticed the other one reading 10 - 15 degrees below actual temp. I have replaced the batteries and it made the display visible but not completely legible, but did nothing for the inaccurate reading. I put them beside each other to verify the temperature - the bad display reads about 82, the other one reads 69.


Rated 1 out of 5 stars
By George on Jan 2, 2023

Accurate but failed after 2 months

The thermometer is accurate. I used it in a tank with a different type of thermometer and they read the same temperature. Unfortunately two months later the thermometer

The thermometer is accurate. I used it in a tank with a different type of thermometer and they read the same temperature. Unfortunately two months later the thermometer says my aquarium water is 32. By touch I know that is not correct and another thermometer says it is 78. I cannot recommend a product that only lasts two months.