Editor's Choice - Our Favorite DaToo Aquarium Thermometers

1. DaToo Aquarium Thermometer with Sucker, Second Generation (Update), 1 Yr Warranty

User Ratings: 45 25

DaToo First Impressions

"Would buy again."

So, in those cases, I find it easier to simply replace it. My only complaint is that they tend to be a one time use. My only complaint is that they tend to be a one time use. And for the price you cant beat it. I guess these units do not like saltwater. I recommend gluing the suction cups in place where needed for long-term installation. You dont HAVE to stick the display onto your tank.

  • DaToo Aquarium Thermometer with Sucker, Second Generation (Update), 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 - The aquarium thermometer is completely waterproof, you can put it in the fish tank, real-time monitoring of water temperature
  • VERY SIMPLE TO OPERATE - No instructions necessary. This is the simplest aquarium thermometer on the market with no buttons to operate.
  • 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
  • Editor's Impressions Of The DaToo
  • Thermometer Accuracy [star rating='3.7']
  • Quality [star rating='3']
  • Value For Money [star rating='3.5']
  • Affordability [star rating='3.7']

DaToo Final Thoughts

"This is perfect."

The extra batteries where very much appreciated and came in handy. 6 inch long Bala Sharks that are known to be very unruly and boisterous. I have to admit I had two reasons for buying six. I am extremely pleased with this product. I have mine on my 60 gallon cube marine tank. Then is started to give a low reading, and it is not reading the correct temperature. 82 PER THERMOMETER with battery included.

Overall Score
3.5

[star rating="3.5"]
(151 Points)

Peoples Choice - Other Highly Rated DaToo Aquarium Thermometers

2. 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 [star rating='3.8']
  • Quality [star rating='5']
  • Value For Money [star rating='5']
  • Affordability [star rating='5']

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

[star rating="4.5"]
(2 Points)

3. Pet Thermometer, Professiona Pets Electronic Thermometer Dog Digital Thermometer Veterinary Supplies...

User Ratings: 47 22

TiTaKa 99BL49EA45Z10615TA First Impressions

"1 degree of each other."

I have always had trouble reading the color temp. Have checked them against the glass thermometers and the accuracy is right on. You can not swivle the thermometer to face a certain way. It is about 6 inches in length and roughly an inch wide. And I just really started to doubt it. I read some of the 1 star reviews and most of them are not about the product. I ordered this guy and it was 6 degrees hotter than the digital!

  • Pet Thermometer, Professiona Pets Electronic Thermometer Dog Digital Thermometer Veterinary Supplies for Pet Dogs Animals
  • Soft probe: waterproof non-toxic rubber probe, soft, soft to the touch, comfortable, safe, and will not harm the rectum of the animal.
  • Plastic material: ABS material, waterproof and environmental protection, mercury-free, safer.
  • Easy to view: LED display beeps, making the readings clearer and more accurate.
  • Simple operation: Built-in clamps make temperature measurement more convenient. You can start measurement with one click.
  • Portable design: small size, light weight, easy to carry around without taking up space.
  • Item Weight: 0.529 ounces
  • Product Dimensions: 5.71 x 0.79 x 0.47 inches
  • Editor's Impressions Of The TiTaKa 99BL49EA45Z10615TA
  • Thermometer Accuracy [star rating='3']
  • Quality [star rating='2.7']
  • Value For Money [star rating='4.3']
  • Affordability [star rating='2.9']

TiTaKa 99BL49EA45Z10615TA Final Thoughts

"89 plus free shipping."

I tested this in a cup crammed full of ice and some water. I ordered this guy and it was 6 degrees hotter than the digital! I find that the temps are accurate, and this product gives added peace of mind. The plastic from the suction cup quickly turned from a clear to a milky white. We are using them to measure various temperatures inside and outside of a motorhome. I recommend gluing the suction cups in place where needed for long-term installation. All are pretty accurate within one degree as claimed.

Overall Score
3.6

[star rating="3.6"]
(18 Points)

4. 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 [star rating='3.7']
  • Quality [star rating='5']
  • Value For Money [star rating='3.9']
  • Affordability [star rating='4']

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

[star rating="4.2"]
(84 Points)

5. MECO(TM) Aquarium Glass Hydrometer Fish Tank Water Temperature Thermometer Salt Marine

User Ratings: 50 18

MECO Co. First Impressions

"Fish and me happy."

And for the price you cant beat it. I don't think they are backlit but for the price they are still nice. When I set up my newest tank I will be getting another one of these. So far I've been very thrilled with these. You dont HAVE to stick the display onto your tank. I don't think they are backlit but for the price they are still nice. Personally I do not mind the way it looks in my aquarium.

  • MECO(TM) Aquarium Glass Hydrometer Fish Tank Water Temperature Thermometer Salt Marine
  • Easy accurate readings for aquariums.
  • Green color indicates both ideal temperature and salinity.
  • Reads °C and °F Temperature in ¨H(40-100) and ¡æ(0-40).
  • Measure both Temperature and Specific Gravity of the water.
  • Green indicators are ideal range of water temperature and specific gravity for most salt water/ marine aquariums.
  • Manufacture: MECO Co.,LTD
  • Editor's Impressions Of The MECO Co.
  • Thermometer Accuracy [star rating='3.8']
  • Quality [star rating='4.4']
  • Value For Money [star rating='3.1']
  • Affordability [star rating='4.1']

MECO Co. Final Thoughts

"It's accurate I tell you."

I ordered a new one and it works GREAT! 2 deg, if it was 32, it would be a SOLID block of ice. All are pretty accurate within one degree as claimed. Good cheap accurate aquarium thermometer. They reviewed the packaging or shipping by saying it arrived broken. I bent it a little bit and when I put it back it was perfectly fine. I can't say which is the most accurate and don't really care.

Overall Score
3.9

[star rating="3.9"]
(74 Points)

6. LCR Hallcrest A-1007 Liquid Crystal Horizontal Aquarium Thermometer

LCR Hallcrest A-1007 First Impressions

"Would recommend!"

I think the people who said the suction cup broke. It is large enough to see without being obtrusive. I bought these for my dwc reservoirs. I have this thermometer on all my tanks. This little wonder allows me to see at a glance that everything is as it should be. As you can see from my photos, in both°F and°C, all six are within. SIX Digital Thermometers with SIX batteries INCLUDED working so well.

  • LCR Hallcrest A-1007 Liquid Crystal Horizontal Aquarium Thermometer
  • Easy To Read
  • Mounts Vertically On The Outside Of Your Aquarium
  • Easily Movable
  • Manufacture: Unique Cell Distributors LLC
  • Product Dimensions: 4 x 0.5 x 7 inches; 0.35 Ounces
  • Editor's Impressions Of The LCR Hallcrest A-1007
  • Thermometer Accuracy [star rating='4.6']
  • Quality [star rating='5']
  • Value For Money [star rating='4.3']
  • Affordability [star rating='5']

LCR Hallcrest A-1007 Final Thoughts

"And I am glad I did."

Have checked them against the glass thermometers and the accuracy is right on. Sure enough the digital thermometer was way off by 6 degrees! The temperature fluctuated a lot with it. I came here to give this product a positive review. I can't say which is the most accurate and don't really care. He acted aggressively towards it and so I ultimate ended up removing it due to that. The display can be set to Fahrenheit or Celsius.

Overall Score
5.0

[star rating="5"]
(12 Points)

7. Tzou Aquarium Thermometer, Aquarium Waterproof Hydraulic Gauge Submersible Glass Thermometer with Su...

Tzou First Impressions

"Really easy to hook up."

One being a very expensive digital. When and if we run out of this batch, I'll instantly order another batch. I don't think they are backlit but for the price they are still nice. Only thing I don't love is how long the cord is. The lid is textured aluminum, and the suction cups don't stick to that. We are using them to measure various temperatures inside and outside of a motorhome. The units each had a battery in place and situated for immediate use.

  • Tzou Aquarium Thermometer, Aquarium Waterproof Hydraulic Gauge Submersible Glass Thermometer with Suction Cup 14CM
  • Package - You will get 1/2/5 pack Aquarium Thermometer, enough for several aquariums.Aquarium Waterproof Hydraulic Gauge Submersible Glass Thermometer with Suction Cup.
  • Material - Made of clear glass tube and PVC suction cup for Aquarium Thermometer, good quality and durable, Waterproof ,packaged in blister, providing from breaking during transportation
  • Function - Red indicator line let you read the temperature quickly and easily, temperature ranges from 0-50℃。
  • 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: Tzou
  • Item Weight: 0.63 Ounces
  • Editor's Impressions Of The Tzou
  • Thermometer Accuracy [star rating='5']
  • Quality [star rating='4.7']
  • Value For Money [star rating='5']
  • Affordability [star rating='5']

Tzou Final Thoughts

"I like these."

It's kind of difficult to hide and keep out of the way. I don't think i'll ever be able to trust a digital thermometer again. All are pretty accurate within one degree as claimed. I find that the temps are accurate, and this product gives added peace of mind. It is my opinion that everyone should have these that are in the Aquarium Hobby. Water tested with Autidefy brand for two hours. I bent it a little bit and when I put it back it was perfectly fine.

Overall Score
5.0

[star rating="5"]
(1 Points)

8. REPTI ZOO 2 Pack Reptile Terrarium Thermometer Hygrometer Digital Display Pet Rearing Box Reptiles T...

User Ratings: 69 2

REPTI ZOO First Impressions

"They all were within."

This is how you calibrate a thermometer. Sure enough the digital thermometer was way off by 6 degrees! Very accurate, have checked it with other thermometers as well. I was using one of those ubiquitous cheap digital thermometers on Amazon. Now if it falls into a sink full of water, it's not a problem. I used these to raise chicks, and in my parrot cages. I used these on a number of my aquariums that have discus fish in them.

  • REPTI ZOO 2 Pack Reptile Terrarium Thermometer Hygrometer Digital Display Pet Rearing Box Reptiles Tank Thermometer Hygrometer with Suction Cup
  • Accurate measure temperature and humidity in vivariums, hatchers, brooders, propagators, etc
  • Digital display and easy to read on clear LED screen, two modes of mounting the suction cup make you can put the thermo-hygrometer on the front or side glass of terrariums as your request.
  • Easy to install: suction cup can be adsorbed firmly on the side or back of the terrarium
  • One extra battery is included for standby in the package, two batteries can use for more than one year
  • 100% quality guarantee: we provide 12 months quality guarantee,if you have any question about our product,please contact us,we will reply and help you in 24 hours
  • Material:Plastic
  • Power supply:1xLR1130/AG10 button cell(included)
  • Temperature range:14℉ to 122℉
  • Manufacture: REPTI ZOO
  • Editor's Impressions Of The REPTI ZOO
  • Thermometer Accuracy [star rating='3.9']
  • Quality [star rating='4.4']
  • Value For Money [star rating='3.6']
  • Affordability [star rating='4.5']

REPTI ZOO Final Thoughts

"Hope this helps!"

And is easily hidden behind a plant. This company is taking the long term view of how to do business right. I used these to raise chicks, and in my parrot cages. Water tested with Autidefy brand for two hours. I use a small flashlight if I don't want to brighten the area. For the price I'll probably end up putting these in all of my aquariums. I had my heater set at 73-degrees and the thermometers showed 74.

Overall Score
4.3

[star rating="4.3"]
(34 Points)

9. YUGE Aquarium Heater with LCD Thermometer Alarm Submersible Water Temperature Meter Temperature Cont...

User Ratings: 38

YUGE First Impressions

"Which is good."

My 50+ eyes cannot read a regular tank thermometer without squinting. My only complaint is that they tend to be a one time use. You can not swivle the thermometer to face a certain way. Place it on your aquarium and you are good to go. The lid is textured aluminum, and the suction cups don't stick to that. Now if it falls into a sink full of water, it's not a problem. If the digital display starts to get dim, it's time for a new battery.

  • YUGE Aquarium Heater with LCD Thermometer Alarm Submersible Water Temperature Meter Temperature Controller Kit Set Fish Tank Heating
  • 【Practical Combination】Perfect aquarium temperature controller kit consisted byYUGE aqurium heater and Submersible Thermometer.
  • 【Adjustable Temperature】Heater Temperature indicating scale can be adjusted between 20~34℃(68~93°F).
  • 【Totally Submersible Design】Totally submersible, waterproof double insulation, durable and safe. 100W is 10in, suitable for 120 L (32 Gallons) fish tank.
  • 【LCD Display】With easy-to-read LCD digital display for this thermometer, you can easily keep an eye on the temperature in your aquarium.
  • 【Alarm Function】Automatic high/low temperature alarm function.Great digital thermometer for fish tank and aquarium.
  • Manufacture: ZhongShan Hai Lang Electric Factory
  • Editor's Impressions Of The YUGE
  • Thermometer Accuracy [star rating='3']
  • Quality [star rating='3.5']
  • Value For Money [star rating='3.5']
  • Affordability [star rating='3.6']

YUGE Final Thoughts

"This is perfect."

6F all six took about three minutes to read between 88. Love it, it's easy to read and keeps an accurate temp. It works equally well on all of them. You can glue, tape or simply cover the cords in the tank to keep them discreet. Only thing I don't love is how long the cord is. I have to admit I had two reasons for buying six. It is easy to use and install it'disappears' in your tank it is so unobtrusive.

Overall Score
3.9

[star rating="3.9"]
(14 Points)

10. Wansan LCD Digital Aquarium Thermometer for Fish Tank Water Terrarium Temperature (Pack of 1,Black)

Wansan First Impressions

"1 degree of each other."

It is about 6 inches in length and roughly an inch wide. We are using them to measure various temperatures inside and outside of a motorhome. So this is the extreme end of the high temperature range. The suction will never be the same. I tested this in a cup crammed full of ice and some water. These digital thermometers are great and there is no guesswork involved. We are using them to measure various temperatures inside and outside of a motorhome.

  • Wansan LCD Digital Aquarium Thermometer for Fish Tank Water Terrarium Temperature (Pack of 1,Black)
  • Our Thermometer is made of durable plastic and clear, big LCD screen, lightweight and easy to read.
  • Package including:1 x Aquarium Thermometer
  • Submerge probe into fish tank to measure water temperature (Submerge probe only, do not submerge thermometer in water).
  • Easy to install.
  • Compact design for discrete use
  • Manufacture: Wansan
  • Product Dimensions: 0.39 x 0.39 x 0.39 inches; 1.06 Ounces
  • Editor's Impressions Of The Wansan
  • Thermometer Accuracy [star rating='4.1']
  • Quality [star rating='4.7']
  • Value For Money [star rating='4.8']
  • Affordability [star rating='5']

Wansan Final Thoughts

"Buy these."

The plastic from the suction cup quickly turned from a clear to a milky white. We are using them to measure various temperatures inside and outside of a motorhome. I think the people who said the suction cup broke. This company is taking the long term view of how to do business right. This thermometer is spot on accurate. 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.

Overall Score
5.0

[star rating="5"]
(1 Points)

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