Editor's Choice - Our Favorite AquaTop Aquarium Thermometers

1. AquaTop ATP Thermometer Submersible

User Ratings: 28 16

AquaTop DTG-15 First Impressions

"Very accurate."

So, in those cases, I find it easier to simply replace it. I have always had trouble reading the color temp. So far, they're all doing their job in my four tanks and I am quite content. For something so cheap, they are working remarkably well. Just BE CAREFUL WHEN ADJUSTING, IT IS GLASS AND WILL BREAK. I used to have a large hang in the side tank that you couldn't miss. My only complaint is that they tend to be a one time use.

  • AquaTop ATP Thermometer Submersible
  • The sleek, compact designs provide easy placement, making the DTG-15 and dtg-25 the perfect choice for aquariums of all sizes.
  • The digital thermometers are accurate to +/- 2 degrees Fahrenheit.
  • The DTG-15 is fully submersible and has a suction cup mount.
  • The dtg-25 has an adhesive back for easy installation and must be mounted externally.
  • Suction Cup mount
  • Manufacture: Aquatop
  • Product Dimensions: 8 x 3 x 2 inches; 1.41 Ounces
  • Editor's Impressions Of The AquaTop DTG-15
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

AquaTop DTG-15 Final Thoughts

"I opened the first three."

I was using one of those ubiquitous cheap digital thermometers on Amazon. These digital thermometers are great and there is no guesswork involved. You dont HAVE to stick the display onto your tank. Works well in my betta tank, but provide a couple hours for it to read temp changes. I can't say which is the most accurate and don't really care. So much easier than the ones that hang on the inside. This temperature read a perfect 32 degrees.

Overall Score
3.1


(6 Points)

Peoples Choice - Other Highly Rated AquaTop Aquarium Thermometers

2. Aquarium Digital Thermometer

User Ratings: 52

AquaTop DTG-25 First Impressions

"Versatile."

I came here to give this product a positive review. The only reason I didn't give this 5 stars is because my betta fish didn't like it. When I set up my newest tank I will be getting another one of these. So the extra units will always come in handy. You can glue, tape or simply cover the cords in the tank to keep them discreet. This little wonder allows me to see at a glance that everything is as it should be. Bought the two pack of thermometers.

  • Aquarium Digital Thermometer
  • Included Components: Atp Thermometer External Dual
  • Age Range Description: All Life Stages
  • Manufacture: Aquatop
  • Product Dimensions: 8 x 3 x 2 inches; 3.84 Ounces
  • Editor's Impressions Of The AquaTop DTG-25
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

AquaTop DTG-25 Final Thoughts

"They are within 0."

A battery can last you up to six months, I'd say, but expect more like three. This company is taking the long term view of how to do business right. I got the second one as a bonus that I'm now using in my old tank. Love it, it's easy to read and keeps an accurate temp. Now if it falls into a sink full of water, it's not a problem. 50 thermometers, reads much easier and no suction cup residue, also looks better. It started working as soon as I put it in and has been working ever since.

Overall Score
4.0


(3 Points)

3. DaToo Aquarium Thermometer Fish Tank Thermometer with Sucker, 1 Yr Warranty

User Ratings: 51

DaToo First Impressions

"THERE'S MORE!"

I got root rot after light leaks and high water temps. So much so that I purchased a second set of 6. Place it on your aquarium and you are good to go. I find that the temps are accurate, and this product gives added peace of mind. Now that the chickens are grown, I have one out in the coop as well. A bit large for anything smaller than 5 gallons, but that's to be expected. The digital display is nice and small as well.

  • DaToo Aquarium Thermometer Fish Tank Thermometer with Sucker, 1 Yr Warranty
  • SIMPLE DESIGN - The DaToo Aquarium Thermometer is an attractive but simple designed unit with no over-complicated controls. The unit itself is blue, and features a clear plastic trim around the edges.
  • WATERPROOF And Wireless - The aquarium thermometer is completely waterproof, you can put it in the fish tank, real-time monitoring of water temperature. Without any cables, make your fish tank look cleaner and increase the playing space of the fish, it will not be bothered by cables.
  • VERY SIMPLE TO OPERATE - Don't need additional instructions. This is the simplest aquarium thermometer on the market with no buttons to operate. Your child can also use it easily!
  • SUCTION PAD FOR EASE OF PLACEMENT - Just find the best spot in the fish tank, then attach the unit with the small suction pad which will keep the thermometer in place until removal is required.
  • WIDE RANGE - The temperature range is from -58°F to 158°F allowing you to use this aquarium thermometer in the majority of temperature conditions.
  • Manufacture: DaToo
  • Batteries: 1 LR44 batteries required. (included)
  • Editor's Impressions Of The DaToo
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

DaToo Final Thoughts

"2 degrees of each other."

Very accurate, have checked it with other thermometers as well. Then is started to give a low reading, and it is not reading the correct temperature. These digital thermometers are great and there is no guesswork involved. It works equally well on all of them. I guess these units do not like saltwater. I used to have a large hang in the side tank that you couldn't miss. I ordered a new one and it works GREAT!

Overall Score
4.5


(2 Points)

4. AQUANEAT Aquarium Thermometer Reptile Thermometer Digital Fish Tank Terrarium Water Temperature Test...

User Ratings: 60 7

AQUANEAT DT-A045x10 First Impressions

"I opened the first three."

These digital thermometers are great and there is no guesswork involved. However, Lucy at Zacro read this review and emailed me. The suction works for a month at a time- in pool and hot tub circulation. I ordered this guy and it was 6 degrees hotter than the digital! It is my opinion that everyone should have these that are in the Aquarium Hobby. They reviewed the packaging or shipping by saying it arrived broken. All were Close enough for a fish tank and other uses.

  • AQUANEAT Aquarium Thermometer Reptile Thermometer Digital Fish Tank Terrarium Water Temperature Test with LCD Display 10 PCS
  • Wide Application: Ideal for use in water or high moisture environment like aquarium terrarium, or vivarium, suitable for different water types such as fresh water, tap water, salty water, marine water and etc.
  • Easy to Read: Comes with a large LCD display that is easy to read clearly.
  • Easy to Setup: Submerge probe with suction cup can easily be set in water. (Submerge probe only, do not submerge thermometer in water) Press ''PWR'' for 3 seconds to power off.
  • Free Extra LR44: 2 PCS LR44 button cell for each thermometer (one for operation, one for spare).
  • Wide Temperature Range: Measure -58°F to +158°F (-50°C to +70°C) with accuracy +/- 1°C
  • Manufacture: AQUANEAT
  • Editor's Impressions Of The AQUANEAT DT-A045x10
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

AQUANEAT DT-A045x10 Final Thoughts

"Great deal."

I recommend gluing the suction cups in place where needed for long-term installation. And for the price you cant beat it. They reviewed the packaging or shipping by saying it arrived broken. The lid is textured aluminum, and the suction cups don't stick to that. Very impressed, I have now had them in used for a month so far. Instead she sent a new package of two, both of which work. I guess these units do not like saltwater.

Overall Score
4.3


(44 Points)

5. General Tools AQ150 In and Out Aquarium Thermometer with Waterproof Probe

User Ratings: 61 8

General Tools AQ150 First Impressions

"Highly Recommended."

89 I could buy Six Thermometers with Six included batteries. I've checked it against two other thermometers that are accurate. I was using one of those ubiquitous cheap digital thermometers on Amazon. Instead she sent a new package of two, both of which work. I got root rot after light leaks and high water temps. 2 deg, if it was 32, it would be a SOLID block of ice. I find that the temps are accurate, and this product gives added peace of mind.

  • General Tools AQ150 In and Out Aquarium Thermometer with Waterproof Probe
  • General Tools and Instruments AQ150 In and Out Aquarium Thermometer monitors temperature in an aquarium or other marine environment
  • The digital thermometer can measure temperatures ranging from -58 to 158 Degrees Fahrenheit (-50 to 70 Degrees Celsius)
  • Digital aquarium thermometer has both minimum and maximum memory and a high/low temperature alarm; keep the water temperature right where you want it
  • A jumbo digital thermometer displays temperature in the aquarium; toggle between ambient/remote sensor temperature and between Fahrenheit and Celsius
  • The industrial thermometer design features both a backlight display and a convenient foldaway stand; CE approved
  • Manufacture: General Tools & Instruments
  • Product Dimensions: 0.5 x 2 x 2.88 inches; 3.04 Ounces
  • Batteries: 1 AAA batteries required. (included)
  • Editor's Impressions Of The General Tools AQ150
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

General Tools AQ150 Final Thoughts

"Would recommend!"

I bent it a little bit and when I put it back it was perfectly fine. The units each had a battery in place and situated for immediate use. 82 PER THERMOMETER with battery included. Since it is a mercury thermometer, it is very accurate. Then she followed up again on that, asking if they had arrived and were okay. The display can be set to Fahrenheit or Celsius. One extra battery came with each unit.

Overall Score
4.1


(254 Points)

6. JJMG Fish Tank Thermometer LCD Digital Aquarium Water Terrarium Temperature New Stick-on Glass Round...

User Ratings: 65 12

JJMG First Impressions

"Which is good."

It's kind of difficult to hide and keep out of the way. The digital display itself is easy to read at a glance. A battery can last you up to six months, I'd say, but expect more like three. The plastic from the suction cup quickly turned from a clear to a milky white. Only thing I don't love is how long the cord is. 50 thermometers, reads much easier and no suction cup residue, also looks better. I can't say which is the most accurate and don't really care.

  • JJMG Fish Tank Thermometer LCD Digital Aquarium Water Terrarium Temperature New Stick-on Glass Round Thin Monitor Peel and Stick Easy Installation Fahrenheit Only
  • MAINTAINS NATURAL TROPICAL HABITAT FOR YOU PET - It Is Important To Make Their Environment Temperature As Close As Possible To Their Natural Habitat. Having A Temperature Is Essential To Ensure The Perfect Temperature For Your Pets.
  • ACCURATELY MONITOR WATER TEMPERATURE IN FAHRENHEIT - Digital Thermometer Clearly Displays In Fahrenheit. Don’t Let Your Fish Tank Tell You It’s Too Cold or Hot For Them By Getting ill or Risk of Losing Them. It Quickly And Accurately Tells You The Temperature At A Glance Anytime.
  • AQUA TERRARIUM - Suitable For Different Water Types Such As Fresh Water, Tap Water, Salty Water, Marine Water And Monitors The Living Temperature For Reptile Such As Lizard, Turtle, Etc.
  • EASY SET UP - Self-Adhesive Fish Tank Thermometer Can Easily Be Installed By Tearing Down The Film At The Back Then Simply Sticking It To The Outer Glass Aquarium. Designed For Secure Convenient Placement.
  • EASY TO READ - Large LCD Display Big Numbers Showing Aquarium Temperature.
  • Manufacture: JJMG
  • Editor's Impressions Of The JJMG
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

JJMG Final Thoughts

"They are within 0."

Excellent working for our bearded dragon tank. Since adding one of these, it has been much easier to monitor the temp of my tanks. I used these on a number of my aquariums that have discus fish in them. I'm pretty sure those reviewers have acrylic tanks. Ambient room temperature measures 72. These are the perfect size to be easily read while not being obtrusive. If the digital display starts to get dim, it's time for a new battery.

Overall Score
4.1


(89 Points)

7. Chuiouy Fish Tank Temp Meter Aquarium Thermometer LCD 3D Digital Electronic Temperature Recorder Tes...

Chuiouy First Impressions

"Hope this helps!"

It is my opinion that everyone should have these that are in the Aquarium Hobby. And I just really started to doubt it. SIX Digital Thermometers with SIX batteries INCLUDED working so well. I have mine on my 60 gallon cube marine tank. Good cheap accurate aquarium thermometer. For something so cheap, they are working remarkably well. I am extremely pleased with this product.

  • Chuiouy Fish Tank Temp Meter Aquarium Thermometer LCD 3D Digital Electronic Temperature Recorder Tester
  • ★ High transparent Crystal glass shell design, fashion and super 3D perspective effect!
  • ★Multi-purpose thermometer, can be used as a body thermometer, aquarium thermometer, indoor and outdoor thermometer and so on
  • ★ Exquisite small, two sides' adhesive stickers, convenient and simple
  • ★ Precise chip, High sensitive electronic sensors to measure temperature, accuracy up to 0.1 Degree
  • ★Ideal For: Aquarium,fish tank // Measuring Range: -45℃~80℃
  • Manufacture: #CY20190801013
  • Editor's Impressions Of The Chuiouy
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Chuiouy Final Thoughts

"9, and 78."

So much so that I purchased a second set of 6. So the extra units will always come in handy. Checked with temp gun and the terrarium was on target at 88. In the right situation this magnet thermometer is the best available. I was using one of those ubiquitous cheap digital thermometers on Amazon. It works equally well on all of them. I have bought many many temperature gauges for my various fish tanks over the years.

Overall Score
3.0


(1 Points)

8. Wodwad Stick On Aquarium Fish Tank Glass Greenhouse Thermometer Temperature Gauge Sticker

User Ratings: 55

Wodwad First Impressions

"Highly Recommended."

Put them all in the same tank and they read very close to each other. And I just really started to doubt it. I have kept aquariums for about 45 years. 6F all six took about three minutes to read between 88. This company is taking the long term view of how to do business right. I have always had trouble reading the color temp. I ordered this guy and it was 6 degrees hotter than the digital!

  • Wodwad Stick On Aquarium Fish Tank Glass Greenhouse Thermometer Temperature Gauge Sticker
  • ✤ Measure the temperature of your fish tank, your DIY Brew Beer and wine barrel, Terrarium, Greenhouse, Vivarium and any sort of pet tank, or any place in your house
  • ✤ The right water temperature is very important for the health of your fish, get your beer and wine right or use in kitchen or around the home to monitor temperature
  • ✤ Easy to install, just peel off the back of the sticker and the transparent protective film at the front and stick it on the outside wall of the aquarium, that is it.
  • ✤ The thermometer changes its color according to the surrounding temperature. If the surrounding temperature is 27°C, then the background of scale mark   27°C will turn colorful and other scale marks remain black.
  • ✤ Measurement range: Celsius degree18-34°C, Fahrenheit degree 64-93°F.
  • Manufacture: Wodwad
  • Editor's Impressions Of The Wodwad
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Wodwad Final Thoughts

"Easy to setup in tank."

And for the price you cant beat it. 49 thermometer that is 100% accurate. It is about 6 inches in length and roughly an inch wide. The plastic from the suction cup quickly turned from a clear to a milky white. Sure enough the digital thermometer was way off by 6 degrees! Good cheap accurate aquarium thermometer. I read some of the 1 star reviews and most of them are not about the product.

Overall Score
4.6


(5 Points)

9. Lomodo 9 Pack Floating Thermometer Aquarium Glass Temperature Gauge with Suction Cup for Fish Tank (...

User Ratings: 37 20

Lomodo First Impressions

"All you need."

Far more accurate than the usual small glass ones or external LCD strips. When I set up my newest tank I will be getting another one of these. This is how you calibrate a thermometer. I got root rot after light leaks and high water temps. I removed the batteries of the units I wasn't using right away. Just BE CAREFUL WHEN ADJUSTING, IT IS GLASS AND WILL BREAK. If the digital display starts to get dim, it's time for a new battery.

  • Lomodo 9 Pack Floating Thermometer Aquarium Glass Temperature Gauge with Suction Cup for Fish Tank (0-40℃/40-100℉)
  • You will get 9 pack floating thermometer, enough for several aquariums
  • Made of clear glass tube and PVC suction cup, good quality and durable, packaged in blister, providing from breaking during transportation
  • Red indicator line let you read the temperature quickly and easily, temperature ranges from 0-40℃/40-100℉
  • Come with suction cup, which can suck the aquariums wall tightly
  • Widely application: you can put it in your pool, pond, fish tank, aquariums, etc
  • Manufacture: Lomodo
  • Product Dimensions: 6.5 x 2.76 x 1.02 inches; 5.93 Ounces
  • Editor's Impressions Of The Lomodo
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Lomodo Final Thoughts

"Sticks easy."

I was using one of those ubiquitous cheap digital thermometers on Amazon. The suction cups work well anywhere I have placed it it has not Fallen. The units each had a battery in place and situated for immediate use. Just BE CAREFUL WHEN ADJUSTING, IT IS GLASS AND WILL BREAK. I recommend gluing the suction cups in place where needed for long-term installation. And for the price you cant beat it. I tested this in a cup crammed full of ice and some water.

Overall Score
3.5


(15 Points)

10. Coralife 00232 Digital Thermometer

User Ratings: 50 10

Coralife 100105032 First Impressions

"Great price."

I used to have a large hang in the side tank that you couldn't miss. We are using them to measure various temperatures inside and outside of a motorhome. The non-working ones still provide 2 batteries each AND. I used these on a number of my aquariums that have discus fish in them. I've checked it against two other thermometers that are accurate. Excellent working for our bearded dragon tank. If the digital display starts to get dim, it's time for a new battery.

  • Coralife 00232 Digital Thermometer
  • Attaches to aquarium via small suction cup
  • 3 foot long temperature probe for large size aquariums
  • Battery included
  • Ideal for aquariums and terrariums
  • Readings to 0.1-degrees Fahrenheit or Celsius
  • Manufacture: Central Garden & Pet
  • Product Dimensions: 6.3 x 0.4 x 1.9 inches; 1.6 Ounces
  • Editor's Impressions Of The Coralife 100105032
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Coralife 100105032 Final Thoughts

"I like these."

I removed the batteries of the units I wasn't using right away. Bought the two pack of thermometers. Good cheap accurate aquarium thermometer. The plastic from the suction cup quickly turned from a clear to a milky white. It is always where yo last put it and it is very easy to see and read. The non-working ones still provide 2 batteries each AND. All are pretty accurate within one degree as claimed.

Overall Score
3.8


(230 Points)

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