Editor's Choice - Our Favorite Fluker's Aquarium Thermometers

1. Fluker's Hermit Headquarters Thermometer & Hydrometer Combo

User Ratings: 55 10

Fluker's BCI012192-X2 First Impressions

"Subtracted from the tank."

Ordered three of these and they do the job. When I set up my newest tank I will be getting another one of these. This thermometer is spot on accurate. So far I've been very thrilled with these. SIX Digital Thermometers with SIX batteries INCLUDED working so well. The suction works for a month at a time- in pool and hot tub circulation. They reviewed the packaging or shipping by saying it arrived broken.

  • Fluker's Hermit Headquarters Thermometer & Hydrometer Combo
  • 2 Pack of Flukers Hermit Headquarters Thermometer & Hydrometer Combo
  • Combination gauge to measure temperature and humidity in crabs enclosure
  • Adhesive back makes attaching to inside of enclosure easy
  • Recommended to use 2 combo meters, one on each end
  • Appropriate extra is 78-82 degrees and humidity between 60-80%
  • Manufacture: Flukers
  • Product Dimensions: 3 x 1 x 2 inches; 0.96 Ounces
  • Editor's Impressions Of The Fluker's BCI012192-X2
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Fluker's BCI012192-X2 Final Thoughts

"Changed to 5-stars now."

I was using one of those ubiquitous cheap digital thermometers on Amazon. And is easily hidden behind a plant. One extra battery came with each unit. This thermometer is spot on accurate. These things are useful for a lot besides pet husbandry, too. I have this thermometer on all my tanks. This company is taking the long term view of how to do business right.

Overall Score
4.1


(216 Points)

2. 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)

3. SunGrow LCD Digital Betta Thermometer, Accurately Reads Tank Water Temperature, Maintains Betta's Re...

User Ratings: 68 3

SunGrow First Impressions

"Love it for my turtles."

This is how you calibrate a thermometer. Very accurate, have checked it with other thermometers as well. You can not swivle the thermometer to face a certain way. I had my heater set at 73-degrees and the thermometers showed 74. I came here to give this product a positive review. They reviewed the packaging or shipping by saying it arrived broken. It will make you wonder why nobody thought of it before.

  • SunGrow LCD Digital Betta Thermometer, Accurately Reads Tank Water Temperature, Maintains Betta's Real Habitat, Easy to Install, Comes with 2 Suction Cups and Battery
  • MAINTAINS TROPICAL HABITAT FOR BETTA--- In nature, betta fish are often found in warm and hot waters in low altitude areas such as Burma and Thailand. For the healthiest and most active betta, it is important to make their environment as close as possible to their habitat. Since betta are accustomed to consistent tropical temperatures, having an effective betta thermometer is essential to ensure the perfect temperature for your pet fish.
  • ACCURATELY MONITORS BETTA TANK WATER TERRARIUM TEMPERATURE --- When it comes to monitoring the water temperature of your betta tank, the most useful tool you can find is an aquarium thermometer. Don’t let your betta tell you it’s too cold or hot in the tank for them, by getting ill, and risk losing them. The durable, reliable Digital Thermometer from SunGrow quickly tells you the temperature at a quick glance any time, so that you can make potentially life saving adjustments to your betta tank
  • SHOWS TEMPERATURE IN FAHRENHEIT OR CELSIUS --- SunGrow Digital Thermometer displays the temperature in both Fahrenheit and Celsius and has a measurement of -58° to +158°F. If the water temperature is outside of that range, the screen will display L° for low temps and H° for high temps. To check the temperature, submerge the 38” cable and reading tip into the water and attach it using the suction cup. Then using another suction cup, place the LCD thermometer in a place most convenient for you
  • HELPS PROTECT BETTA FUR COAT SYNDROME --- As they are so sensitive to water temperature changes, betta are particularly susceptible to issues like Fur Coat Syndrome. It is a dermal infection that discolors betta’s fins and covers your fish in a furry mold. Fur Coat Syndrome is nearly always fatal within 30hrs of symptoms showing and is highly contagious. However, this is easily prevented if you keep your betta’s water between 78° and 80° Fahrenheit.
  • ENSURE HAPPINESS & LONGEVITY OF BETTA --- Being able to quickly and accurately read your betta tank’s water temperature is essential to keeping your betta fish healthy. Changes in water temperature can greatly stress out betta fish and seriously harm them. By using SungGrow Digital Thermometer,you ensure the happiness and longevity of your betta.
  • Manufacture: Luffy Pets Collection
  • Editor's Impressions Of The SunGrow
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

SunGrow Final Thoughts

"Suction cups fail."

I used these to raise chicks, and in my parrot cages. My 50+ eyes cannot read a regular tank thermometer without squinting. And for the price you cant beat it. One being a very expensive digital. So this is the extreme end of the high temperature range. I read some of the 1 star reviews and most of them are not about the product. I have mine on my 60 gallon cube marine tank.

Overall Score
4.4


(159 Points)

4. 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)

5. Slaxry Fast-Read Thermometer Easy Setup Stick On Fish Tank Glass Thermometer Temperature Gauge Heate...

User Ratings: 74 26

Slaxry First Impressions

"Buy these."

So far, they're all doing their job in my four tanks and I am quite content. One extra battery came with each unit. You dont HAVE to stick the display onto your tank. It is easy to use and install it'disappears' in your tank it is so unobtrusive. Sure enough the digital thermometer was way off by 6 degrees! One extra battery came with each unit. He was moving slow in the winter and we realized he needed a heater!

  • Slaxry Fast-Read Thermometer Easy Setup Stick On Fish Tank Glass Thermometer Temperature Gauge Heater Sticker for Aquarium, Reptile, Turtles
  • Measure the temperature of your fish tank, DIY Brew Beer and wine barrel, Terrarium, Greenhouse, Vivarium and any sort of pet tank, or any place in your house
  • Dimension: 13 cm/5.12" of length, 1.8 cm/0.71" of width.
  • Measurement range: Celsius degree18-34°C, Fahrenheit degree 64-93°F.
  • No battery and suction cup to worry about.
  • 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.
  • Manufacture: Slaxry
  • Editor's Impressions Of The Slaxry
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Slaxry Final Thoughts

"A solid five stars."

Good cheap accurate aquarium thermometer. Good cheap accurate aquarium thermometer. This thermometer is spot on accurate. This temperature read a perfect 32 degrees. So far, they're all doing their job in my four tanks and I am quite content. They are within a degree or two of other thermometers I've checked to compare them. I can't say which is the most accurate and don't really care.

Overall Score
4.0


(14 Points)

6. Inkbird C929A Smart Digital WiFi Temperature Controller for Aquarium Fish Tank Wireless Thermostat f...

User Ratings: 48 13

Inkbird First Impressions

"They all were within."

He acted aggressively towards it and so I ultimate ended up removing it due to that. Now I'm getting back in on a much smaller scale with 3 gallon Acrylic Nano tanks. 6 in a pack, extra batteries, easy set up, great price. The units each had a battery in place and situated for immediate use. This little wonder allows me to see at a glance that everything is as it should be. Very accurate, have checked it with other thermometers as well. This thermometer is spot on accurate.

  • Inkbird C929A Smart Digital WiFi Temperature Controller for Aquarium Fish Tank Wireless Thermostat for Reptiles Terrarium
  • Equipped with 2 probes measure the temperature,double protection from overheating,peace in mind.
  • WiFi & APP remote monitor & control, get alarms of high/low-temperature or errors from APP & device
  • Easy to set up, plug and play, pre-wired and compatible with 110V heaters or fans.1200W max
  • Alarms if the Temperature difference is over 5℉, or continuous heating time exceeds expectations
  • Built-in dual relays enable power off when one of the relays is defective, overheated is prevent
  • Manufacture: Lerway Tech
  • Product Dimensions: 3.54 x 1.18 x 2.48 inches; 7.83 Ounces
  • Editor's Impressions Of The Inkbird
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Inkbird Final Thoughts

"Easy to setup in tank."

It worked great and I highly recommend it! You can glue, tape or simply cover the cords in the tank to keep them discreet. So far I've been very thrilled with these. I'm pretty sure those reviewers have acrylic tanks. Was going to get a floater until I saw this magnetic one! The plastic from the suction cup quickly turned from a clear to a milky white. I have always had trouble reading the color temp.

Overall Score
3.9


(30 Points)

7. Hang on Thermometer 18cm WL- Aquarium Freshwater Marine Fish Tank

Aquarium Equip HTWL 白L溫度計 First Impressions

"Great product!"

I needed a solution that was not breakable and these do the trick! Instead she sent a new package of two, both of which work. This little wonder allows me to see at a glance that everything is as it should be. If the digital display starts to get dim, it's time for a new battery. All are pretty accurate within one degree as claimed. I have always had trouble reading the color temp. When and if we run out of this batch, I'll instantly order another batch.

  • Hang on Thermometer 18cm WL- Aquarium Freshwater Marine Fish Tank
  • Product name: Hang on thermometer White(w-L) 18cm(7")
  • a. Accurate. b. Easy to read. c. For freshwater and marine tank. d. Easy install and without using sucker.
  • Manufacture: HTWL 白L溫度計
  • Editor's Impressions Of The Aquarium Equip HTWL 白L溫度計
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Aquarium Equip HTWL 白L溫度計 Final Thoughts

"Very accurate."

The plastic from the suction cup quickly turned from a clear to a milky white. Was going to get a floater until I saw this magnetic one! I am extremely pleased with this product. The non-working ones still provide 2 batteries each AND. Put them all in the same tank and they read very close to each other. They are within a degree or two of other thermometers I've checked to compare them. The suction cups work well anywhere I have placed it it has not Fallen.

Overall Score
5.0


(2 Points)

8. SunGrow Digital pH and TDS Meter Set, Accurate Readings, Easy to Read LCD Screen, Monitor Aquarium, ...

User Ratings: 57 6

SunGrow First Impressions

"Great product!"

This thermometer is spot on accurate. 50 thermometers, reads much easier and no suction cup residue, also looks better. I just wrote it off as a minor loss. Checked with temp gun and the terrarium was on target at 88. I bent it a little bit and when I put it back it was perfectly fine. I think the people who said the suction cup broke. Set all six probes up in a terrarium with a constant temp of 88.

  • SunGrow Digital pH and TDS Meter Set, Accurate Readings, Easy to Read LCD Screen, Monitor Aquarium, Fruit, Tap Water, Pool Water, 4 LR44 Batteries Included
  • ✔ TWO-IN-ONE SOLUTION --- This Ph and TDS combo meter by SunGrow will give you the best of both worlds in one device. This SunGrow pack includes electrodes and components needed to test both the pH and TDS of any water solution. It’s easy to use and less equipment to deal with than two separate devices.
  • ✔ ENERGY-SAVING, LIGHTWEIGHT AND PORTABLE DEVICES--- This PH and TDS meter has a handheld pen-type design that weighs barely 1.7 oz making it lightweight and portable. It comes with a handy case that you can easily slip into a backpack or work bag if you need to bring it with you. The meter shuts off automatically after 10-minutes of non-use to conserve batteries. (BATTERIES INCLUDED)
  • ✔ CALIBRATION SCREWDRIVER INCLUDED --- These meters have been factory-calibrated and are designed to stay consistent. However, if you need to recalibrate your meter from time to time or you want to calibrate for different applications, you can use the screwdriver calibration tool included for continued accurate readings of your water. The TDS meter is most accurate when calibrated as close as possible to the sample to be tested.
  • ✔ HIGHLY ACCURATE READINGS --- This pH and TDS professional level water test meter precisely measures and monitors the levels in your aquarium or other liquid solutions. The SunGrow pH and TDS meter will give you extremely accurate readings of the ph levels and Total Dissolved Solid within ± 2% range.
  • ✔ MULTI-USE MEASURING TOOL--- This little tool is a valuable instrument for keeping a tab on various bodies of water. You can use it to make sure the level in your freshwater or saltwater aquarium is optimal for your fish, test water in a laboratory or for the hydroponically grown vegetables. You can also test the swimming pool, tap water, and spa water.
  • Manufacture: Luffy Pets Collection
  • Editor's Impressions Of The SunGrow
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

SunGrow Final Thoughts

"Easy to setup in tank."

When I set up my newest tank I will be getting another one of these. My 50+ eyes cannot read a regular tank thermometer without squinting. Love it, it's easy to read and keeps an accurate temp. I used to have a large hang in the side tank that you couldn't miss. It will make you wonder why nobody thought of it before. Bought the two pack of thermometers. Place it on your aquarium and you are good to go.

Overall Score
4.2


(44 Points)

9. Zoo Med Analog High Range Reptile Thermometer

User Ratings: 54 12

Zoo Med TH20 First Impressions

"9, and 78."

The only reason I didn't give this 5 stars is because my betta fish didn't like it. Excellent working for our bearded dragon tank. Ordered three of these and they do the job. I used to have a large hang in the side tank that you couldn't miss. I find that the temps are accurate, and this product gives added peace of mind. I find that the temps are accurate, and this product gives added peace of mind. 49 thermometer that is 100% accurate.

  • Zoo Med Analog High Range Reptile Thermometer
  • Velcro backing for easy removal during clean ups
  • Precision German movement
  • A must for high temperature species
  • Manufacture: Zoo Med Laboratories
  • Product Dimensions: 6.5 x 0.3 x 0.2 inches; 1.6 Ounces
  • Editor's Impressions Of The Zoo Med TH20
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Zoo Med TH20 Final Thoughts

"Perhaps it's my fault."

6 in a pack, extra batteries, easy set up, great price. These are the perfect size to be easily read while not being obtrusive. These are the perfect size to be easily read while not being obtrusive. Still a recommendation for me due to price and accuracy. My only complaint is that they tend to be a one time use. It works equally well on all of them. You dont HAVE to stick the display onto your tank.

Overall Score
3.9


(36 Points)

10. SunGrow Shrimp Stick-on Thermometer, 5.2 Inches, Precise Temperature Monitoring, Keeps Shrimps Healt...

User Ratings: 60 10

SunGrow First Impressions

"Versatile."

You can not swivle the thermometer to face a certain way. Was going to get a floater until I saw this magnetic one! I'm pretty sure those reviewers have acrylic tanks. My poor fish was in 86 degrees water for a month. I had my heater set at 73-degrees and the thermometers showed 74. We are using them to measure various temperatures inside and outside of a motorhome. One of my aquariums is glass, and the other two are plastic.

  • SunGrow Shrimp Stick-on Thermometer, 5.2 Inches, Precise Temperature Monitoring, Keeps Shrimps Healthy, Optimal Water Temperature Promotes Longer Lifespan, Stick-and-Go, Easy to Read, Use and Install
  • ✔ PROVIDES SHRIMPS A FEEL OF THEIR NATURAL HABITAT --- For freshwater crustaceans, it is important to maintain warm temperature in their environment. Unsuitable environment can cause your shrimp to become sluggish, tired and inactive. Stick-on Thermometer by SunGrow will help keep an eye on your tank’s temperature to avoid such circumstances from occurring.
  • ✔ KEEPS DECAPODS HEALTHY --- Once you spot your beloved shrimps losing their vibrance and feeling weak, there is something not right. It is vital to maintain your tank’s temperature at the right level. As a conscientious pet owner, you can significantly reduce their stress levels with the right temperature. Consequently, it will help them to digest and metabolize food properly thus protecting them against possible maladies.
  • ✔ PRECISE TEMPERATURE MONITORING --- Shrimp need water that is between 65 and 80 degrees Fahrenheit to survive. If it drops below 65°F, it slows down their metabolism and they will feel very weak. This easy-to-use thermometer changes the color indicator to green and blue to indicate the tank temperature.
  • ✔ SIMPLE TO READ AND EASY INSTALLATION --- Measures 5.2” tall by 0.7” wide (13cm x 1.8cm), this Stick-on is so easy to attach. Simply peel and stick ! Its design is minimalist, it is all black with measurements on white color for an easy temperature reading. The blue highlight reflects a temperature below the tank’s actual temperature of the tank and green highlight reflects the real temperature of the tank.
  • ✔ GUARANTEES HAPPY ENVIRONMENT & LONGEVITY OF SHRIMPS --- These freshwater pets are at their happiest in proper environment. They are more active, productive and are definitely healthy when optimal water conditions are provided to them. Properly maintained environment can make your shrimps live to their maximum potential.
  • Manufacture: Luffy Pets Collection
  • Editor's Impressions Of The SunGrow
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

SunGrow Final Thoughts

"Easy set up."

Simple fix, you adjust the thermometer within the suction cup and VIOLA! And is easily hidden behind a plant. It's kind of difficult to hide and keep out of the way. He acted aggressively towards it and so I ultimate ended up removing it due to that. For something so cheap, they are working remarkably well. This temperature read a perfect 32 degrees. 6 inch long Bala Sharks that are known to be very unruly and boisterous.

Overall Score
4.0


(26 Points)

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