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 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. SunGrow Tortoise Thermometer with LCD Display, Monitors Enclosure Temperature in Celsius & Fahrenhei...

User Ratings: 54 17

SunGrow First Impressions

"It sticks very firmly."

I bent it a little bit and when I put it back it was perfectly fine. Good cheap accurate aquarium thermometer. The only reason I didn't give this 5 stars is because my betta fish didn't like it. It worked great and I highly recommend it! I removed the batteries of the units I wasn't using right away. I removed the batteries of the units I wasn't using right away. I removed the batteries of the units I wasn't using right away.

  • SunGrow Tortoise Thermometer with LCD Display, Monitors Enclosure Temperature in Celsius & Fahrenheit in 5 Seconds, Easy to Install, Temperature Sensor Probe, 2 Suction Cups and Battery Included
  • ✔ THEY’LL GROW OLD WITH YOU WHEN OPTIMAL TEMPERATURE IS PROVIDED --- To keep themselves in a healthy frame of mind, your cold-blooded herp needs a lot of heat. Provide a basking spot with temperature ranging between 95°F - 105°F. SunGrow Digital Thermometer with LCD display enables you to monitor this temperature accurately. The optimal temperature promotes blood circulation, ensures quick digestion, flex their muscles, ability to reproduce.
  • ✔ ENSURE HAPPINESS & LONGEVITY OF YOUR PET --- Being able to quickly and accurately read the temperature of your pet’s habitat is essential to keeping them healthy. Frequent changes in temperature can greatly stress them out affect their immune system. By using SungGrow Digital Thermometer, you ensure their happiness and long life.
  • ✔ SHOWS TEMPERATURE IN FAHRENHEIT OR CELSIUS --- SunGrow Digital Thermometer clearly displays the temperature in both Fahrenheit and Celsius and has a measurement of -58° to +158°F and -50° to +70°C. If the temperature is outside of that range, the screen will display L° for low temps and H° for high temps.
  • ✔ ACCURATELY MONITORS TERRARIUM TEMPERATURE --- When it comes to monitoring the temperature of your indoor pet’s tank, the most useful tool you can find is an aquarium thermometer. Don’t let your land-dwelling specie tell you it’s too cold or warm in there, 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 potentially life-saving adjustments to their enclosure.
  • ✔ MADE TO LAST --- Made of durable plastic and clear, big LCD screen, lightweight and easy to read. Unobtrusive and long-lasting. Comes with Reader tip (Sensing Probe Cable Line), suction cups and LR44, 1.5v battery included, cable with 38" length and ready-to-go upon arrival.
  • Manufacture: Luffy Pets Collection
  • Editor's Impressions Of The SunGrow
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

SunGrow Final Thoughts

"Very accurate."

6 inch long Bala Sharks that are known to be very unruly and boisterous. Who knows, whatever it was, it was revolting! The lid is textured aluminum, and the suction cups don't stick to that. Was going to get a floater until I saw this magnetic one! My 50+ eyes cannot read a regular tank thermometer without squinting. And is easily hidden behind a plant. You can use the thermometer with or without the plastic suction cup.

Overall Score
3.9


(38 Points)

4. Aquatic Gardens Aquarium Hydrometer with Thermometer

User Ratings: 25 25

Aquatic Gardens First Impressions

"The hotter, the faster."

These things are useful for a lot besides pet husbandry, too. This company is taking the long term view of how to do business right. I read some of the 1 star reviews and most of them are not about the product. I guess these units do not like saltwater. Sure enough the digital thermometer was way off by 6 degrees! And for the price you cant beat it. You can not swivle the thermometer to face a certain way.

  • Aquatic Gardens Aquarium Hydrometer with Thermometer
  • Manufacture: Aquatic Gardens
  • Editor's Impressions Of The Aquatic Gardens
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Aquatic Gardens Final Thoughts

"There is no question."

I have to admit I had two reasons for buying six. The units each had a battery in place and situated for immediate use. 50 thermometers, reads much easier and no suction cup residue, also looks better. This is my first 5 star review out of many many reviews on Amazon. I did have a problem with one in my first pack of 6. The lid is textured aluminum, and the suction cups don't stick to that. The suction works for a month at a time- in pool and hot tub circulation.

Overall Score
3.2


(10 Points)

5. Accreate Practical LCD 3D Crystal Digital Electronic Thermometer Temperature Measurement for Fish Ta...

Accreate First Impressions

"A solid five stars."

I don't think they are backlit but for the price they are still nice. So far I've been very thrilled with these. 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. I have it in both my aquariums now. It works equally well on all of them. The suction works for a month at a time- in pool and hot tub circulation.

  • Accreate Practical LCD 3D Crystal Digital Electronic Thermometer Temperature Measurement for Fish Tank Aquarium
  • Adopting transparent crystal glass shell shape, fashion and elegant 3D perspective effect.
  • This is high sensitive electronic sensors with precise chip, accuracy up to 0.1 degree.
  • It has a strong sticker on the back, just need to tear off it and stick it on the outer of aquarium.
  • It is great tool for a aquarium thermometer, indoor and outdoor thermometer ect.
  • Manufacture: Accreate
  • Editor's Impressions Of The Accreate
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Accreate Final Thoughts

"Would buy again."

In the right situation this magnet thermometer is the best available. The extra batteries where very much appreciated and came in handy. It worked great and I highly recommend it! I have to admit I had two reasons for buying six. I don't think i'll ever be able to trust a digital thermometer again. I used to have a large hang in the side tank that you couldn't miss. This little wonder allows me to see at a glance that everything is as it should be.

Overall Score
3.3


(3 Points)

6. Honbay 6PCS Adhesive Crystal Digital Temperature Strips Stickers for Fish Tank Water Cup

User Ratings: 70

HONBAY First Impressions

"Never had any problems."

I did have a problem with one in my first pack of 6. For the price I'll probably end up putting these in all of my aquariums. You can not swivle the thermometer to face a certain way. One of my aquariums is glass, and the other two are plastic. 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! Very accurate, have checked it with other thermometers as well.

  • Honbay 6PCS Adhesive Crystal Digital Temperature Strips Stickers for Fish Tank Water Cup
  • Package includes: 6PCS Stick-on Digital Thermometer Strips
  • Material:Plastic
  • Capacity: 13*1.8cm/5.12*0.71inch
  • Perfect for wine bottles, baby bottles, fish tanks, bath water and more, but it can't be used in the environment above 50 ℃.
  • 3 different color, green color represents current temperature, blue color represents a bit lower temperature, brown color represents a bit higher temperature.
  • Manufacture: Honbay
  • Editor's Impressions Of The HONBAY
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

HONBAY Final Thoughts

"Fast accurate readings."

The suction will never be the same. He was moving slow in the winter and we realized he needed a heater! 6F all six took about three minutes to read between 88. It started working as soon as I put it in and has been working ever since. Instead she sent a new package of two, both of which work. For something so cheap, they are working remarkably well. He was moving slow in the winter and we realized he needed a heater!

Overall Score
4.4


(4 Points)

7. Rhinoco 2pcs Digital Aquarium Thermometer, Indoor LCD Digital Hygrometer, Thermometer, Temperature H...

User Ratings: 47 27

Rhinoco First Impressions

"Close enough I reckon!"

These are the perfect size to be easily read while not being obtrusive. I bent it a little bit and when I put it back it was perfectly fine. So far, they're all doing their job in my four tanks and I am quite content. I'm pretty sure those reviewers have acrylic tanks. You can not swivle the thermometer to face a certain way. I bought these for my dwc reservoirs. And is easily hidden behind a plant.

  • Rhinoco 2pcs Digital Aquarium Thermometer, Indoor LCD Digital Hygrometer, Thermometer, Temperature Humidity Meter for Aquarium Terrarium Amphibians and Reptiles or Home, Office, Bedroom
  • 【Aquarium Digital Thermometer】Comes with submerge probe support to measure water temperature of the fish tank. Also this LCD digital hygrometer thermometer can measure indoor temperature, humidity and display time simultaneously, you can use it in home, bedroom or office.
  • 【Wide Test Range】Temperature range from -50°C to 70°C, resolution is 0.1°C. Humidity range is 10%~99% RH, resolution is 1% RH. It can keep working in extreme environments.
  • 【High Accuracy】±1°C (1.8°F) temperature accuracy and 0.1°C (0.1°F) temperature resolution. More accurate to show you the condition of the environment.
  • 【Large LCD Screen】3.2" large glass screen is larger than most of the thermometers, which makes it easier to read the temperature.
  • 【What You Get】2 x Aquarium thermometer, 2 x Battery, 2 x Probe, 4 x Suction cups,2 x User Manual(English)
  • Manufacture: Rhinoco
  • Batteries: 2 AAA batteries required. (included)
  • Editor's Impressions Of The Rhinoco
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Rhinoco Final Thoughts

"Great product!"

Since it is a mercury thermometer, it is very accurate. I think the people who said the suction cup broke. This thermometer is spot on accurate. He acted aggressively towards it and so I ultimate ended up removing it due to that. Just BE CAREFUL WHEN ADJUSTING, IT IS GLASS AND WILL BREAK. 6 in a pack, extra batteries, easy set up, great price. These things are useful for a lot besides pet husbandry, too.

Overall Score
3.1


(4 Points)

8. 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)

9. Fashion Life Aquarium Fish Tank Thermometer Temperature Sticker Digital Dual Scale Stick-On Durable

User Ratings: 34 21

Fashion Life First Impressions

"Doing the math."

SIX Digital Thermometers with SIX batteries INCLUDED working so well. 89 I could buy Six Thermometers with Six included batteries. It works equally well on all of them. You can use the thermometer with or without the plastic suction cup. I have bought many many temperature gauges for my various fish tanks over the years. I came here to give this product a positive review. For the price I'll probably end up putting these in all of my aquariums.

  • Fashion Life Aquarium Fish Tank Thermometer Temperature Sticker Digital Dual Scale Stick-On Durable
  • Brand new with high quality.
  • Stick on the outer surface of fish tank.
  • Simple to use and convenient to read.
  • Look no further, buy instantly.
  • Manufacture: Fashion Life
  • Editor's Impressions Of The Fashion Life
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Fashion Life Final Thoughts

"Very accurate."

You can glue, tape or simply cover the cords in the tank to keep them discreet. I used these on a number of my aquariums that have discus fish in them. I bought these for my dwc reservoirs. In this scenario it would probably get knocked loose a lot. And I just really started to doubt it. I recommend gluing the suction cups in place where needed for long-term installation. The lid is textured aluminum, and the suction cups don't stick to that.

Overall Score
3.6


(14 Points)

10. Aquarium Thermometer LCD Digital Waterproof Thermometer with Suction Cup Fish Tank Water Temperature...

User Ratings: 44 23

Fischuel First Impressions

"7 reading."

These are the perfect size to be easily read while not being obtrusive. My only complaint is that they tend to be a one time use. However, Lucy at Zacro read this review and emailed me. I tested this in a cup crammed full of ice and some water. I don't think they are backlit but for the price they are still nice. Place it on your aquarium and you are good to go. These are the perfect size to be easily read while not being obtrusive.

  • Aquarium Thermometer LCD Digital Waterproof Thermometer with Suction Cup Fish Tank Water Temperature for Fish Like Betta
  • - 100% Waterproof : With Sealed Ring Design, Fischuel Aquarium Thermometer can completely submerge into the water, water temperature measurement is more accurate. ( Your Betta can also use it as a rest leaf.)
  • ✋- 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.
  • - Extreamly Easy To Use : No instructions necessary. This is the simplest aquarium thermometer on the market with no buttons to operate.
  • - Durable : Powered by a LR44 battery which is very long lasting and easy to replace.(Batteries included)
  • - Wireless : Fischuel Fish Tank Themometer works precisely without any external wire and probe, makes your tank look clean and tidy and expand the activity space of your fish.
  • Manufacture: Fischuel
  • Batteries: 2 LR44 batteries required. (included)
  • Editor's Impressions Of The Fischuel
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Fischuel Final Thoughts

"2 deg of 32."

This company is taking the long term view of how to do business right. I have to admit I had two reasons for buying six. I bent it a little bit and when I put it back it was perfectly fine. I recommend gluing the suction cups in place where needed for long-term installation. So the extra units will always come in handy. I had my heater set at 73-degrees and the thermometers showed 74. I had my heater set at 73-degrees and the thermometers showed 74.

Overall Score
3.4


(381 Points)

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