HDE LCD Digital Aquarium Thermometer

Rated 3.6827 out of 5 stars
Slide 1 of 6
HDE LCD Digital Aquarium Thermometer slide 1 of 6
Slide 1 of 6
HDE LCD Digital Aquarium Thermometer slide 1 of 6
$7.86Chewy Price
$9.99Chewy Price

In Stock
FREE 1-3 day shipping over $49

Frequently Bought Together

This Item - HDE LCD Digital Aquarium Thermometer
Rated 3.6827 out of 5 stars
$7.86Chewy Price
Aqueon Glass Adjustable Aquarium Heater, 300-watt
Rated 3.7308 out of 5 stars
$20.99Chewy Price
Zoo Med AquaSun Aquarium Timer
Rated 3.3333 out of 5 stars
$13.85Chewy Price
Total Price: $0.00

About This Item

  • Easy-to-use digital aquarium thermometer includes a large easy-to-read LCD display.
  • Provides up-to-the-minute accurate temperature readings within 0.1 degree in both Fahrenheit and Celsius.
  • Suction cups affix the screen to the outside of your tank and the temperature gauge to the inside of your tank submerged in water.
  • LR44 batteries are included so you can start measuring temperature as soon as you open the package.
  • To turn the thermometer on simply press the “On” button and you’re ready to measure your aquarium’s temperature and ensure your fish’s health.
Play Video: Learn More About HDE From Our Team of Experts
Learn More About HDE From Our Team of Experts

Compare Similar Items

Customer Rating
Rated 3.6827 out of 5 stars
Rated 3 out of 5 stars
Rated 3.8156 out of 5 stars
Rated 3.25 out of 5 stars
Rated 3.1667 out of 5 stars
$7.86Chewy Price
$5.80Chewy Price
$2.99Chewy Price
$3.99Chewy Price
$8.69Chewy Price
$5.51Chewy Price
$3.79Chewy Price
Fish TypeTropical Freshwater, Marine FishBetta, Goldfish, Cichlid...Tropical Freshwater, Marine FishBetta, Goldfish, Cichlid...Tropical Freshwater
Aquarium TypeFreshwater, SaltwaterFreshwater, SaltwaterFreshwater, SaltwaterFreshwater, SaltwaterSaltwater

Questions & Answers

16 Customer Questions

Can the battery be replaced?
Answer by ChewyJan 02, 2019
The thermometer includes LR44 batteries, which can be replaced.

Will this work with a aquatic turtle? Thank you...
Answer by ChewyMar 09, 2018
This product is intended to read the water temperature in all aquariums, including those for turtles.

Could you please tell me the highest temperature range this thermometer will register. Thank you!
Answer by ChewyJan 18, 2018
From Customer reviews it has been tested from 120 Fahrenheit to -7 Celsius. The average temperature you'd use it at is 76- 84 degrees.

can i use it to test on several tanks?
Answer by ChewySep 07, 2018
This thermometer can be used on several aquariums but should be cleaned thoroughly before entering the next aquarium to reduce the risk of spreading any illnesses that your fish may have.

ReviewsWrite a Review

Rated 3.6827 out of 5 stars
104 Reviews
Would recommend to a friend

104 Customer Reviews

Rated 3 out of 5 stars
By Laura7 on Jun 23, 2022

Inaccurate but consistent

I've had this for 8 months now. It is consistently about 2.2 degrees F above the actual temperature according to two other thermometers that I have. Knowing that, it works for its purpose. The suction cup gave out completely after the first hour of use and has never worked since. I'd recommend this for ease of use but you'll need another thermometer for accuracy.

Rated 4 out of 5 stars
By Rulla on Jun 27, 2022

Helps me with the water

So i had my heater set on 86 in the water and it with light on it read it to be around 92/94 - With the light off it read to 91= SO this helps me gauge where the heater needs to be so I would not harm my pet.

Rated 5 out of 5 stars
By gcj000 on May 20, 2022

Good Thermometer

I use these thermometers in my aquariums and when I'm changing the water in my tanks. The batteries last a long time and you can get readings in Centigrade and Fahrenheit.

Rated 5 out of 5 stars
By Dennis on May 16, 2022

excellant product

Works perfectly. I highly recommend . This is one of the better thermometers I have purchased at such a reasonable price.

Rated 1 out of 5 stars
By AnimalLove on Jan 1, 2022

Junk, Junk, Junk!!!!!!

There is no other word to describe this product. Junk, a complete waste of money! I have used for several months now. It has never given an accurate temperature but was only off by a few degrees so I wasn’t completely worried about it. But today while cleaning my tank, I went to log the temp and it’s reading in the negatives. I highly doubt my fish would be thriving in such cold water. So this product literally lasted 6 months and now has to be part of our ever growing landfills. Thanks China!

Rated 1 out of 5 stars
By Rick on Mar 28, 2022

Worked For A While

This worked for a while, but is now reading 5 degrees low. I've changed the battery and still the same issue. Look elsewhere.

Rated 1 out of 5 stars
By Stephen on Jan 30, 2022

Broken right out of the box

Can't review something that was completely broken right out of the box. The thermometer would not turn on after trying both the battery that came with it and a brand new battery. DO NOT waste your money on this

Rated 1 out of 5 stars
By Bill on Feb 28, 2022

Bad thermometer

The thermometer did not work right out of the box. Checked battery it was fine but you could only see a broken read out.

Rated 2 out of 5 stars
By Bailz on Oct 30, 2021

Started out good, then lost accuracy

I was very happy with this thermometer. I tested it a few times in comparison to my food thermometer and it was spot on! However, after about 2 weeks it started telling me my water temp was only 72 degrees, which had me concerned that my heater went out. So I tested it against my food thermometer again and the food thermometer had a reading of 77, which is what I had my heater set to. So the heater was apparently still functioning fine, it was the thermometer that stopped giving accurate readings. I've left it in my tank for the past month and it's never given a reading over 72 degrees and I've tested several more times and verified that my water is still at 77 degrees. It's possible that it already needs a new battery, but I'm still giving less stars because even if that is the case, I shouldn't have to replace the batteries that often.

Rated 5 out of 5 stars
By Tori on Oct 18, 2021

Accurate Thermometer

The thermometer accuracy is pretty good and show a constant reading every few seconds or so. Mine came with a battery and two suction cups. One for the thermometer to hang onto the glass and one for the probe. Suctions work well so I’m not disappointed. The only problem I have is that if your night at eye level with it you can’t see what the reading are.