Editor's Choice - Our Favorite HEEPDD Aquarium Thermometers

1. HEEPDD Reptile Thermometer Hygrometer, Mini Round Shape Dual Dial Thermometer and Humidity Gauge for...

User Ratings: 41 34

HEEPDD First Impressions

"LOVE these thermometers."

I have kept aquariums for about 45 years. The suction works for a month at a time- in pool and hot tub circulation. I used to have a large hang in the side tank that you couldn't miss. Ambient room temperature measures 72. Now if it falls into a sink full of water, it's not a problem. Now I'm getting back in on a much smaller scale with 3 gallon Acrylic Nano tanks. I used these on a number of my aquariums that have discus fish in them.

  • HEEPDD Reptile Thermometer Hygrometer, Mini Round Shape Dual Dial Thermometer and Humidity Gauge for Reptile Tank Lizard Tortoise Spider Chameleon Pet Rearing Box
  • 2 in 1 Design---Monitoring of temperature and humidity is essential in providing any reptile species with the correct environment. Adopt the principle of physical measurement, no maintenance needed, and no battery required.
  • Easy to Read---Large dual round dial with accuracy scales, easy to read. Temperature Measuring Range: -30-50°C, Humidity Measuring Range: 0-100%RH. Use different color coded segments for easy reading, blue means cold (humid), green means moderate, red means hot (dry).
  • Compact and Lightweight---The thermometer can be suspended level or placed on the use, can be displayed anywhere in the reptile habitat without getting in the way of your pal’s view.
  • Applicable Scenes---Widely used for lizard, tortoise, spider, chameleon in vivariums, hatchers, brooders, propagators, etc. Also suitable for pet, warehouse, hospital, laboratory, air-conditioned room, etc.
  • Satisfaction Guarantee---We greatly value our customers and want you to be completely satisfied with your purchase. If you aren't happy with your shopping experience or product, we urge you to contact us so we can resolve the issue!
  • Manufacture: HEEPDD
  • Product Dimensions: 6.1 x 2.95 x 0.59 inches; 2.12 Ounces
  • Editor's Impressions Of The HEEPDD
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

HEEPDD Final Thoughts

"I like this."

One extra battery came with each unit. I was using one of those ubiquitous cheap digital thermometers on Amazon. For something so cheap, they are working remarkably 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. This little wonder allows me to see at a glance that everything is as it should be. So, in those cases, I find it easier to simply replace it.

Overall Score
3.0


(11 Points)

2. Aquarium Submersible Glass Thermometer With Suction 14Cm Hydrometer Waterproof Fish Tank Durable

User Ratings: 59

Fashion Life First Impressions

"Great for price."

He was moving slow in the winter and we realized he needed a heater! Place it on your aquarium and you are good to go. One being a very expensive digital. When and if we run out of this batch, I'll instantly order another batch. So this is the extreme end of the high temperature range. So, in those cases, I find it easier to simply replace it. He was moving slow in the winter and we realized he needed a heater!

  • Aquarium Submersible Glass Thermometer With Suction 14Cm Hydrometer Waterproof Fish Tank Durable
  • Aquarium and exo terra reptile tank thermometer.
  • Made of high quality glass, clear and easy to read.
  • Stable and durable enough for a long time use.
  • Manufacture: Fashion Life
  • Editor's Impressions Of The Fashion Life
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Fashion Life Final Thoughts

"Love it for my turtles."

49 thermometer that is 100% accurate. Personally I do not mind the way it looks in my aquarium. 50 thermometers, reads much easier and no suction cup residue, also looks better. I used to have a large hang in the side tank that you couldn't miss. I bent it a little bit and when I put it back it was perfectly fine. I am extremely pleased with this product. 89 I could buy Six Thermometers with Six included batteries.

Overall Score
4.2


(4 Points)

3. 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)

4. SunGrow Neon Tetra Thermometer with LCD Display, Accurately Reads Tank Water Temperature, Battery an...

User Ratings: 78 1

SunGrow First Impressions

"I opened the first three."

I am extremely pleased with this product. I am extremely pleased with this product. I recommend gluing the suction cups in place where needed for long-term installation. The display can be set to Fahrenheit or Celsius. 6F all six took about three minutes to read between 88. The digital display itself is easy to read at a glance. The suction cups work well anywhere I have placed it it has not Fallen.

  • SunGrow Neon Tetra Thermometer with LCD Display, Accurately Reads Tank Water Temperature, Battery and 2 Suction Cups Included for Quick Installation
  • MAINTAINS NATIVE TROPICAL HABITAT FOR YOUR FRESHWATER FISH --- In nature, tetras are often found in warm and clearwater streams in Amazon basin of South America. For the healthiest and most active Neon Tetra, it is important to replicate their habitat as close as possible. Since neon tetras are accustomed to consistent tropical temperatures, having an effective thermometer for them is essential.
  • ACCURATELY MONITORS TANK WATER TEMPERATURE --- When it comes to monitoring the water temperature of your freshwater fish tank, the most useful tool you can find is an aquarium thermometer. Don’t let your pet tell you it’s too cold or hot in the tank for them, by getting ill, and risk losing them. The Digital Thermometer from SunGrow quickly tells you the temperature at a quick glance any time, so that you can make adjustments before the situation gets out of control.
  • 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 TETRA FROM FUR COAT SYNDROME --- As they are so sensitive to water temperature changes, they are susceptible to Fur Coat Syndrome. However, corrective action can be taken if you keep your fish’s tank water between 78° and 80° Fahrenheit.
  • ENSURE HAPPINESS & LONGEVITY OF TETRA --- Being able to quickly and accurately read your fish tank’s water temperature is essential to keeping your pet healthy. Changes in water temperature can greatly stress them and affect their immune system. By using SungGrow Digital Thermometer, you ensure their happiness and long life.
  • Manufacture: Luffy Pets Collection
  • Editor's Impressions Of The SunGrow
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

SunGrow Final Thoughts

"Or left a mark."

I have mine on my 60 gallon cube marine tank. The plastic from the suction cup quickly turned from a clear to a milky white. Set all six probes up in a terrarium with a constant temp of 88. I guess these units do not like saltwater. I got root rot after light leaks and high water temps. I got the second one as a bonus that I'm now using in my old tank. I use a small flashlight if I don't want to brighten the area.

Overall Score
4.6


(309 Points)

5. (2 Pack) Zoo Med Economy Analog Dual Thermometer and Humidity Gauge

User Ratings: 72 3

Zoo Med TH-27 First Impressions

"Appears to be accurate."

Then she followed up again on that, asking if they had arrived and were okay. Only thing I don't love is how long the cord is. 6 inch long Bala Sharks that are known to be very unruly and boisterous. Simple fix, you adjust the thermometer within the suction cup and VIOLA! We are using them to measure various temperatures inside and outside of a motorhome. I think the people who said the suction cup broke. So, in those cases, I find it easier to simply replace it.

  • (2 Pack) Zoo Med Economy Analog Dual Thermometer and Humidity Gauge
  • Allows precise monitoring of both the temperature and humidity of your terrarium from one unit
  • Temperature and humidity levels are extremely important to the long term heath of your animals
  • Velcro backing enables easy removal for cleaning or relocation
  • New Dual Analog Terrarium Thermometer/Hygrometer
  • Pack of 2
  • Manufacture: Zoo Med
  • Product Dimensions: 6 x 2 x 4 inches; 1.6 Ounces
  • Editor's Impressions Of The Zoo Med TH-27
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Zoo Med TH-27 Final Thoughts

"Great product!"

I use a small flashlight if I don't want to brighten the area. As you can see from my photos, in both°F and°C, all six are within. Since it is a mercury thermometer, it is very accurate. They reviewed the packaging or shipping by saying it arrived broken. One extra battery came with each unit. 89 I could buy Six Thermometers with Six included batteries. You dont HAVE to stick the display onto your tank.

Overall Score
4.5


(321 Points)

6. AUTIDEFY LCD Digital Aquarium Thermometer Fish Tank Water Terrarium Temperature (2Pack+10Pack)

User Ratings: 50 11

AUTIDEFY First Impressions

"Only thing the battries."

In this scenario it would probably get knocked loose a lot. Water tested with Autidefy brand for two hours. For the price I'll probably end up putting these in all of my aquariums. One of my aquariums is glass, and the other two are plastic. I got root rot after light leaks and high water temps. It is my opinion that everyone should have these that are in the Aquarium Hobby. I can't say which is the most accurate and don't really care.

  • AUTIDEFY LCD Digital Aquarium Thermometer Fish Tank Water Terrarium Temperature (2Pack+10Pack)
  • Submerge probe into fish tank to measure water temperature (Submerge probe only, do not submerge thermometer in water)
  • LED Digital °C /° F thermometer;Temperature range -50°c ~ + 70°c,Operating temperature -10°c ~ +50°c
  • Sticker Thermometer Dimensions: 5.12” tall by 0.7” wide (13cm x 1.8cm)
  • Adhesive on the back, just peel off the tape and attach to the outside surface.
  • Package Contents: 2 x Digital Thermometer; 10 x Stick-on Thermometer
  • Manufacture: AUTIDEFY
  • Editor's Impressions Of The AUTIDEFY
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

AUTIDEFY Final Thoughts

"Drop in the probe."

The digital display is nice and small as well. The only reason I didn't give this 5 stars is because my betta fish didn't like it. So much easier than the ones that hang on the inside. Still a recommendation for me due to price and accuracy. It will make you wonder why nobody thought of it before. And I just really started to doubt it. And I just really started to doubt it.

Overall Score
3.8


(25 Points)

7. 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)

8. Aquarium Thermometer, Fish Tank Thermometer, Water Thermometer with LCD Display Fahrenheit/Celsius(...

User Ratings: 67 3

AikTryee First Impressions

"2 deg of 32."

It is large enough to see without being obtrusive. So much so that I purchased a second set of 6. It started working as soon as I put it in and has been working ever since. I used these to raise chicks, and in my parrot cages. Was going to get a floater until I saw this magnetic one! Place it on your aquarium and you are good to go. We are using them to measure various temperatures inside and outside of a motorhome.

  • Aquarium Thermometer, Fish Tank Thermometer, Water Thermometer with LCD Display Fahrenheit/Celsius(℉/℃) for Vehicle Reptile Terrarium Fish Tank Refrigerator by AikTryee
  • 【PRODUCT MATERIAL】Aquarium Thermometer uses a high-precision stainless steel sensor probe to measure the water temperature of the aquarium. The main unit uses a professional LCD display to solve the problem of not knowing the temperature of the fish tank, thus providing a healthy and comfortable water environment for all kinds of fish.
  • 【WIDE TEMPERATURE TEST】Fish Tank Thermometer Temperature Range -58 ℉ ~ +500℉; Temperature measurement accuracy: ±1℉; It can be used in temperature sensing of many types of liquids, making your temperature measurement so simple.
  • 【LONG BATTERY LIFE】Water Thermometer Powered by Two LR44 Button Cell (Included), Battery Working Time up to 8 Months.
  • 【LARGE SCREEN DISPLAY】Digital Aquarium Thermometer with a Large Screen 1.6 inch LCD Display, Easy to Read Temperature for Children or Older People, Real-time monitoring of changes in water temperature.
  • 【Package Includes】Aquarium Thermometer 1 x Digital Aquarium Thermometer, 2 x Suction cup mounts, 1 x User manual, LR44 battery included.
  • Manufacture: AikTryee
  • Product Dimensions: 2.28 x 1.4 x 0.47 inches; 1.31 Ounces
  • Batteries: 1 LR44 batteries required. (included)
  • Editor's Impressions Of The AikTryee
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

AikTryee Final Thoughts

"Disappointed."

Very impressed, I have now had them in used for a month so far. They reviewed the packaging or shipping by saying it arrived broken. The suction works for a month at a time- in pool and hot tub circulation. 6 inch long Bala Sharks that are known to be very unruly and boisterous. The plastic from the suction cup quickly turned from a clear to a milky white. The lid is textured aluminum, and the suction cups don't stick to that. This temperature read a perfect 32 degrees.

Overall Score
4.4


(79 Points)

9. GESAIL Digital LCD Thermometer, Mini Digital Aquarium Thermometer with 1M Cable, Fish Tank Thermomet...

GESAIL First Impressions

"These are great!"

They reviewed the packaging or shipping by saying it arrived broken. 82 PER THERMOMETER with battery included. The only reason I didn't give this 5 stars is because my betta fish didn't like it. I think the people who said the suction cup broke. Very accurate, have checked it with other thermometers as well. Simple fix, you adjust the thermometer within the suction cup and VIOLA! It will make you wonder why nobody thought of it before.

  • GESAIL Digital LCD Thermometer, Mini Digital Aquarium Thermometer with 1M Cable, Fish Tank Thermometer, LCD Display (℉) for Vehicle Reptile Terrarium Fish Tank Refrigerator
  • Submerge probe into fish tank to measure water temperature (Submerge probe only, do not submerge thermometer in water).
  • Temperature range: -58°F~ +230°F. Accuracy: ±2°F.
  • Designed to be embedded or can be surface mounted.
  • Battery Operated (included) (Aprox 2 year battery life)Size 1"x1.75".
  • Suitable for measuring: water temperature, fish tank, baby bath water temperature, room temperature, refrigerator, body temperature, car inside and outside temperature, etc.
  • Manufacture: GESAIL
  • Product Dimensions: 1.97 x 1.18 x 0.79 inches; 0.81 Ounces
  • Batteries: 2 LR44 batteries required. (included)
  • Editor's Impressions Of The GESAIL
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

GESAIL Final Thoughts

"I placed it on the side."

When I set up my newest tank I will be getting another one of these. Put them all in the same tank and they read very close to each other. So versatile, I can read the temperatures literally anywhere. They reviewed the packaging or shipping by saying it arrived broken. Bought the two pack of thermometers. For something so cheap, they are working remarkably well. They are within a degree or two of other thermometers I've checked to compare them.

Overall Score
4.0


(2 Points)

10. Landen Hang On Thermometer

User Ratings: 64 12

Landen G-6C First Impressions

"Changed to 5-stars now."

Personally I do not mind the way it looks in my aquarium. 6F all six took about three minutes to read between 88. The temperature fluctuated a lot with it. This doesn't bother me as it ws so cheap. These things are useful for a lot besides pet husbandry, too. I ordered this guy and it was 6 degrees hotter than the digital! This company is taking the long term view of how to do business right.

  • Landen Hang On Thermometer
  • 【Minimalist Design】Elegant slender body, crystal clear glass-made. No disturbing on the beautiful scene of your nature aquarium
  • 【Easy Usage】Simply place it directly along a wall of your aquarium Tank, easy to read on the clear lines against the conventional gauges
  • 【Attractive Appearance】Perfectly fit into your aquarium, good for light transparency, easy to clean and long-lasting
  • 【All Water Typer】Fit for all water type, freshwater or saltwater, no worry on battery or body wear and tear
  • 【Sepcification】Actual Length: 6.4 inches, for 6mm or thinner thickness of aquarium tank; Clear scale background; Measuring temperature: 0-40 Celsius degree
  • Manufacture: Landen
  • Editor's Impressions Of The Landen G-6C
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Landen G-6C Final Thoughts

"Versatile."

In the right situation this magnet thermometer is the best available. I can't say which is the most accurate and don't really care. It worked great and I highly recommend it! Since adding one of these, it has been much easier to monitor the temp of my tanks. He was moving slow in the winter and we realized he needed a heater! These digital thermometers are great and there is no guesswork involved. And for the price you cant beat it.

Overall Score
4.2


(48 Points)

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