Editor's Choice - Our Favorite POPETPOP Aquarium Thermometers

1. POPETPOP LCD Digital Aquarium Thermometer High Precision Digital Fish Tank Thermometer for Aquarium/...

User Ratings: 60 7

POPETPOP First Impressions

"I am new to the hobby."

Very impressed, I have now had them in used for a month so far. Now if it falls into a sink full of water, it's not a problem. I use a small flashlight if I don't want to brighten the area. So much so that I purchased a second set of 6. This little wonder allows me to see at a glance that everything is as it should be. I find that the temps are accurate, and this product gives added peace of mind. In the right situation this magnet thermometer is the best available.

  • POPETPOP LCD Digital Aquarium Thermometer High Precision Digital Fish Tank Thermometer for Aquarium/Pond/Reptile Turtles Habitats (Blue)
  • TEMPERATURE - Temperature range is -20℃ ~ + 70℃. Temperature accuracy is ±1℃(±2℉). Update measured temperature every 10 seconds.
  • READINGS - LCD screen displays measured temperature which can be switched between ℃ and ℉, and it can save the maximum and minimum readings during past tests.
  • SCREEN - Large screen displays clearly, no dead corner on the left or right make it looks more beautiful. Besides, if you want a clearer screen displays, you can remove the screen protector.
  • INSTALLATION - Easy and convenient to install at fish tank with suction cup or spring clip that make sure space-saving and portable. You can put this small thermometer at anyplace you want to place. (Please only submerge probe, don't submerge thermometer in water)
  • MATERIAL - Eco-friendly ABS shell which is tough and hard. Excellent mechanical properties make the device safer, wear-resistant and stable. High accuracy with professional sensor, it can measure temperature more correctly than same product. Powered by two AG13 button cells (included).
  • Manufacture: POPETPOP
  • Product Dimensions: 2.76 x 2.76 x 1.18 inches; 1.8 Ounces
  • Editor's Impressions Of The POPETPOP
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

POPETPOP Final Thoughts

"Subtracted from the tank."

Simple fix, you adjust the thermometer within the suction cup and VIOLA! He acted aggressively towards it and so I ultimate ended up removing it due to that. I use a small flashlight if I don't want to brighten the area. I use a small flashlight if I don't want to brighten the area. Now if it falls into a sink full of water, it's not a problem. He was moving slow in the winter and we realized he needed a heater! Works well in my betta tank, but provide a couple hours for it to read temp changes.

Overall Score
4.2


(105 Points)

Peoples Choice - Other Highly Rated POPETPOP Aquarium Thermometers

2. POPETPOP Pet Dog Thermometer Digital - LCD Waterproof Electronic Portable Vetinary Thermometer for D...

User Ratings: 29 22

POPETPOP J17LR51I0OV0P449AW15T0F First Impressions

"I like the product."

Ordered three of these and they do the job. Set all six probes up in a terrarium with a constant temp of 88. At least in the first 3 months of use. My poor fish was in 86 degrees water for a month. If the digital display starts to get dim, it's time for a new battery. They are within a degree or two of other thermometers I've checked to compare them. Since it is a mercury thermometer, it is very accurate.

  • POPETPOP Pet Dog Thermometer Digital - LCD Waterproof Electronic Portable Vetinary Thermometer for Dog Puppy Cats Rabbits Kittens Sheep Celsius Only
  • Animal Thermometer Waterproof rubber probe, flexible, soft tactility more comfortabe.
  • Soft sensor, measurement accuracy, LCD display and waterproof.
  • Suitable for your farm animal, pigs, cattle, sheep, etc.
  • Directions for use: Insert the thermometer soft head position rectal 5-8 cm, press the switch (ON/OFF) button, hear di after start measuring, when they hear continuous di... After the measurement end. 20-40 seconds out thermometer, view the measurement results, according to the switch key to clos
  • Cat temperature thermometer made of high quality ABS material, practical, durable and safe.
  • Manufacture: POPETPOP
  • Product Dimensions: 4.72 x 1.18 x 0.79 inches; 0.71 Ounces
  • Editor's Impressions Of The POPETPOP J17LR51I0OV0P449AW15T0F
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

POPETPOP J17LR51I0OV0P449AW15T0F Final Thoughts

"And he is a betta."

Simple fix, you adjust the thermometer within the suction cup and VIOLA! Just BE CAREFUL WHEN ADJUSTING, IT IS GLASS AND WILL BREAK. When I set up my newest tank I will be getting another one of these. Works well in my betta tank, but provide a couple hours for it to read temp changes. So much easier than the ones that hang on the inside. I had my heater set at 73-degrees and the thermometers showed 74. The digital display itself is easy to read at a glance.

Overall Score
3.2


(32 Points)

3. POPETPOP Aquarium Thermometer-Fish Tank Thermometer Hook Practical Universal Accessory Creative Glas...

POPETPOP First Impressions

"This is perfect."

82 PER THERMOMETER with battery included. You can use the thermometer with or without the plastic suction cup. I have it in both my aquariums now. The suction works for a month at a time- in pool and hot tub circulation. Ambient room temperature measures 72. For something so cheap, they are working remarkably well. He acted aggressively towards it and so I ultimate ended up removing it due to that.

  • POPETPOP Aquarium Thermometer-Fish Tank Thermometer Hook Practical Universal Accessory Creative Glass Thermometer with Hook for Aquarium Fish Tank-6MM
  • The maximum temperature is 40 degrees centigrade.
  • Aquarium temperature gauge Hook design for easy install.
  • The thermometer column is very sensitive, will always change according to the temperature.
  • The right water temperature is very important for the health of your fish, a aquarium thermometer is very necessary.
  • Simple to use and convenient to read.
  • Manufacture: POPETPOP
  • Product Dimensions: 5.71 x 0.94 x 0.2 inches; 0.71 Ounces
  • Editor's Impressions Of The POPETPOP
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

POPETPOP Final Thoughts

"7 reading."

I think the people who said the suction cup broke. The non-working ones still provide 2 batteries each AND. So far, they're all doing their job in my four tanks and I am quite content. My poor fish was in 86 degrees water for a month. This thermometer is spot on accurate. I have it in both my aquariums now. Sure enough the digital thermometer was way off by 6 degrees!

Overall Score
3.0


(1 Points)

4. American Thermal Liquid Crystal Aquarium Thermometer Vertical Small

User Ratings: 72 7

Amer Thermal Instruments BC002021 First Impressions

"Perhaps it's my fault."

I have to admit I had two reasons for buying six. It is always where yo last put it and it is very easy to see and read. The units each had a battery in place and situated for immediate use. These things are useful for a lot besides pet husbandry, too. This thermometer is spot on accurate. The units each had a battery in place and situated for immediate use. 6 in a pack, extra batteries, easy set up, great price.

  • American Thermal Liquid Crystal Aquarium Thermometer Vertical Small
  • Know your aquarium's temperature at a glance
  • Easy-to-read and accurate thermometer mounts on outside of your aquarium
  • Unbreakable, non-corrosive, and non-toxic
  • Fahrenheit scale
  • Manufacture: Amer Thermal Instruments
  • Editor's Impressions Of The Amer Thermal Instruments BC002021
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Amer Thermal Instruments BC002021 Final Thoughts

"Which is good."

You can glue, tape or simply cover the cords in the tank to keep them discreet. The suction cups work well anywhere I have placed it it has not Fallen. Simple fix, you adjust the thermometer within the suction cup and VIOLA! The digital display itself is easy to read at a glance. I can't say which is the most accurate and don't really care. In the right situation this magnet thermometer is the best available. So versatile, I can read the temperatures literally anywhere.

Overall Score
4.4


(384 Points)

5. LCD Digital Fish Tank Temperature Control Sensor Thermometer Wired Aquarium Fish Tank

Unknown First Impressions

"2 deg of 32."

This company is taking the long term view of how to do business right. 2 deg, if it was 32, it would be a SOLID block of ice. I used these to raise chicks, and in my parrot cages. I have mine on my 60 gallon cube marine tank. I have kept aquariums for about 45 years. So versatile, I can read the temperatures literally anywhere. Still a recommendation for me due to price and accuracy.

  • LCD Digital Fish Tank Temperature Control Sensor Thermometer Wired Aquarium Fish Tank
  • Manufacture: Unknown
  • Editor's Impressions Of The Unknown
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Unknown Final Thoughts

"A solid five stars."

I have this thermometer on all my tanks. So versatile, I can read the temperatures literally anywhere. Simple fix, you adjust the thermometer within the suction cup and VIOLA! At least in the first 3 months of use. For something so cheap, they are working remarkably well. In this scenario it would probably get knocked loose a lot. Still a recommendation for me due to price and accuracy.

Overall Score
4.0


(1 Points)

6. Yinuoday LCD Aquarium Thermometer Digital Fish Tank Magnetic Thermometer with Accurate Temperature S...

Yinuoday 1165893-348-1756032522 First Impressions

"I AM SO HAPPY."

It's kind of difficult to hide and keep out of the way. I'm pretty sure those reviewers have acrylic tanks. In the right situation this magnet thermometer is the best available. He was moving slow in the winter and we realized he needed a heater! This doesn't bother me as it ws so cheap. And I just really started to doubt it. The non-working ones still provide 2 batteries each AND.

  • Yinuoday LCD Aquarium Thermometer Digital Fish Tank Magnetic Thermometer with Accurate Temperature Sensor Monitor Water Temperature,Aquarium Accessory
  • 【Aquarium thermometer】: High transparent Crystal glass shell design, super 3D perspective effect, Exquisite small, convenient and simple to use.
  • 【Accurate Temperature】: Precise chip, High sensitive electronic sensors to measure temperature, accuracy up to 0.1℃.
  • 【Size】: 7x2cm (LxW); Measuring range: -45℃— 85℃; Accuracy: ± 0.1℃; Powered by button batteries (included)
  • 【Install】: The thermometer is attached to the outside of the glass wall of the fish tank. You can accurately measure the temperature in the fish tank.
  • 【100% Guarantee】: If you are unsatisfied with receiving theAquarium thermometer, we offer a 30 day money back guarantee. If you are not satisfied for any reason you can return the Aquarium thermometer for a full refund.
  • Manufacture: Yinuoday
  • Item Weight: 1.06 ounces
  • Product Dimensions: 3.15 x 1.18 x 1.18 inches
  • Editor's Impressions Of The Yinuoday 1165893-348-1756032522
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Yinuoday 1165893-348-1756032522 Final Thoughts

"Hope this helps!"

It started working as soon as I put it in and has been working ever since. These digital thermometers are great and there is no guesswork involved. I was using one of those ubiquitous cheap digital thermometers on Amazon. It is always where yo last put it and it is very easy to see and read. I have it in both my aquariums now. For something so cheap, they are working remarkably well. I came here to give this product a positive review.

Overall Score
5.0


(1 Points)

7. 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)

8. Lomodo 4 Pack Floating Thermometer Aquarium Glass Temperature Gauge with Suction Cup for Fish Tank

User Ratings: 63 12

Lomodo First Impressions

"Works perfect."

I got the second one as a bonus that I'm now using in my old tank. 2 deg, if it was 32, it would be a SOLID block of ice. Bought the two pack of thermometers. Good cheap accurate aquarium thermometer. At least in the first 3 months of use. Set all six probes up in a terrarium with a constant temp of 88. I have kept aquariums for about 45 years.

  • Lomodo 4 Pack Floating Thermometer Aquarium Glass Temperature Gauge with Suction Cup for Fish Tank
  • Ideal for fish tank, aquariums, suitable for indoor and outdoor use, ensuring proper water temperature
  • The red indicator allows you to easily read the temperature
  • Green safety zone quickly indicates whether the water temperature is normal
  • Equipped with suction cups, it can either float on water or suck on glass walls
  • Easy to use: just put it in your pool, pond, fish tank, etc. and it will get you the water temperature
  • Manufacture: Lomodo
  • Editor's Impressions Of The Lomodo
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Lomodo Final Thoughts

"Very accurate."

Checked with temp gun and the terrarium was on target at 88. It will make you wonder why nobody thought of it before. The units each had a battery in place and situated for immediate use. Good cheap accurate aquarium thermometer. Just BE CAREFUL WHEN ADJUSTING, IT IS GLASS AND WILL BREAK. He acted aggressively towards it and so I ultimate ended up removing it due to that. This temperature read a perfect 32 degrees.

Overall Score
4.0


(61 Points)

9. SunGrow Betta Sticker Thermometer, Ensure Optimum Comfort Around 78 Degrees, Accurately Measures Tem...

User Ratings: 60 6

SunGrow First Impressions

"1 degrees F at all times."

A battery can last you up to six months, I'd say, but expect more like three. 6 inch long Bala Sharks that are known to be very unruly and boisterous. One being a very expensive digital. I have kept aquariums for about 45 years. So far, they're all doing their job in my four tanks and I am quite content. So much easier than the ones that hang on the inside. It is about 6 inches in length and roughly an inch wide.

  • SunGrow Betta Sticker Thermometer, Ensure Optimum Comfort Around 78 Degrees, Accurately Measures Temperature, Large Fonts for Quick Reading, 1 Minute to Set-Up
  • A MUST HAVE TO MAINTAIN NATURAL 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 that their environment be as close as possible to their natural 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.
  • EASILY MONITOR YOUR BETTA TANK WATER 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 cost-effective, Peel & Stick SunGrow Betta Thermometer quickly tells you the temperature at a quick glance any time, so that you can make potentially life saving adjustments to your betta tank water.
  • SIMPLE, PRACTICAL, EASY TO READ & SETUP --- Designed to be simple to read and attach (just peel and stick), the paper thin thermometer is 5.2” tall by 0.7” wide (13cm x 1.8cm). It is all black with temperature measurements written in white, easy enough to read for even your kids to tell. Using color indication, the water temperature that the thermometer reads will change to a blue color on the measurement scale. The measurement range is 64-93 degrees Fahrenheit or 18-34 degrees Celsius.
  • HELPS PROTECT BETTA FROM DISEASE LIKE FUR COAT SYNDROME --- As they are so sensitive to water temperature changes, betta are particularly susceptible to diseases such as Fur Coat Syndrome. It is a dermal bacterial infection that discolors betta’s fins and covers your fish in a furry mold. Fur Coat Syndrome is nearly always fatal within 30 hrs of symptoms showing and is highly contagious. However, this disease is easily prevented if you keep your betta’s water between 78° to 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. The betta thermometer that you choose needs to be reliable and provide you with an factual
  • Manufacture: Luffy Pets Collection
  • Editor's Impressions Of The SunGrow
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

SunGrow Final Thoughts

"These are great!"

The plastic from the suction cup quickly turned from a clear to a milky white. I used these on a number of my aquariums that have discus fish in them. I tested this in a cup crammed full of ice and some water. Love it, it's easy to read and keeps an accurate temp. For the price I'll probably end up putting these in all of my aquariums. It is always where yo last put it and it is very easy to see and read. Simple fix, you adjust the thermometer within the suction cup and VIOLA!

Overall Score
4.2


(84 Points)

10. KEWAYO 4 Pieces Fast Read Aquarium Thermometer - Simple Setting, Accurate Reading, Suitable for Aqua...

User Ratings: 43 33

KEWAYO First Impressions

"It is within."

I ordered this guy and it was 6 degrees hotter than the digital! I'm pretty sure those reviewers have acrylic tanks. The suction works for a month at a time- in pool and hot tub circulation. 2 deg, if it was 32, it would be a SOLID block of ice. My only complaint is that they tend to be a one time use. All are pretty accurate within one degree as claimed. At least in the first 3 months of use.

  • KEWAYO 4 Pieces Fast Read Aquarium Thermometer - Simple Setting, Accurate Reading, Suitable for Aquarium, Reptile, Turtle
  • Measurement range: Celsius degree18-34C, Fahrenheit degree 64-93F
  • Monitor the temperature of the fish tank - keep the fish, shrimp, reptiles, and turtle to make sure that the water is not too hot or too cold. The irregular water temperature can be harmful to the health of your fish
  • Easy to install, can be adsorbed outside of the Aquarium, to help you observe the temperature of the water in your aquarium and keep a watchful eye on the living environment of your pet fish.
  • The thermometer changes its color according to the surrounding temperature
  • Aquarium Thermometer is suitable for any size aquarium
  • Manufacture: KEWAY
  • Product Dimensions: 7.9 x 4.7 x 0.05 inches; 0.64 Ounces
  • Editor's Impressions Of The KEWAYO
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

KEWAYO Final Thoughts

"I opened the first three."

Have checked them against the glass thermometers and the accuracy is right on. I used these to raise chicks, and in my parrot cages. Instead she sent a new package of two, both of which work. Was going to get a floater until I saw this magnetic one! This doesn't bother me as it ws so cheap. Just BE CAREFUL WHEN ADJUSTING, IT IS GLASS AND WILL BREAK. One of my aquariums is glass, and the other two are plastic.

Overall Score
3.4


(20 Points)

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