Editor's Choice - Our Favorite VIVOSUN Aquarium Thermometers

1. VIVOSUN 1-Pack LCD Digital Aquarium Thermometer Fish Tank Water Terrarium Temperature with Suction C...

User Ratings: 73 3

VIVOSUN First Impressions

"Fish and me happy."

The display can be set to Fahrenheit or Celsius. I have kept aquariums for about 45 years. The plastic from the suction cup quickly turned from a clear to a milky white. My poor fish was in 86 degrees water for a month. Very accurate, have checked it with other thermometers as well. I was using one of those ubiquitous cheap digital thermometers on Amazon. Put them all in the same tank and they read very close to each other.

• VIVOSUN 1-Pack LCD Digital Aquarium Thermometer Fish Tank Water Terrarium Temperature with Suction Cup for Turtle
• HIGH ACCURACY: Temperature Range: -50℃ ~ +70℃ (-58 °F ~ +158 °F); This aquarium thermometer is accurate to +/- 1℃, no matter whether the probe is placed in any corner of this fish tank, an accurate temperature will be displayed
• LCD DISPLAY: Comes with a large LCD display that is easy to read clearly and accurately
• ADJUSTABLE UNIT TEMPERATURE: Easy to adjust the temp between Fahrenheit and Celsius displays; Long-press the power button to adjust the unit display
• TWO SUCTION CUPS: Equipped with two suction cups, one for attaching the cable to the side of the tank and another for attaching the thermometer
• SUPER LONG CABLE: The cable length connected to the probe is 78.74 inch (2 m) superior to 23.62 inch (60 cm) standard cable length; Allows accurate temperature measurements in even the largest fish tanks
• 1. Open the battery cover on the back of this thermometer and insert the button battery to ensure the “+” positive electrode is face up;
• 2. Use one suction cup to attach the back of this thermometer, then fix this unit to the outer of this fish tank, another suction cup is for attaching the cable;
• 3. Submerge the probe attached cable into the fish tank;
• Manufacture: VIVOSUN

• Editor's Impressions Of The VIVOSUN
• Thermometer Accuracy [star rating='3.8']
• Quality [star rating='5']
• Value For Money [star rating='4']
• Affordability [star rating='5']

Peoples Choice - Other Highly Rated VIVOSUN Aquarium Thermometers

2. VIVOSUN 4-Pack LCD Digital Aquarium Thermometer Fish Tank Water Terrarium Temperature with Suction C...

User Ratings: 69 3

VIVOSUN First Impressions

"Appears to be accurate."

This is how you calibrate a thermometer. So much easier than the ones that hang on the inside. It is about 6 inches in length and roughly an inch wide. I used these on a number of my aquariums that have discus fish in them. In the right situation this magnet thermometer is the best available. I just wrote it off as a minor loss. Ambient room temperature measures 72.

• VIVOSUN 4-Pack LCD Digital Aquarium Thermometer Fish Tank Water Terrarium Temperature with Suction Cup for Turtle
• HIGH ACCURACY: Temperature Range: -50℃ ~ +70℃ (-58 °F ~ +158 °F); This aquarium thermometer is accurate to +/- 1℃, no matter whether the probe is placed in any corner of this fish tank, an accurate temperature will be displayed
• LCD DISPLAY: Comes with a large LCD display that is easy to read clearly and accurately
• ADJUSTABLE UNIT TEMPERATURE: Easy to adjust the temp between Fahrenheit and Celsius displays; Long-press the power button to adjust the unit display
• TWO SUCTION CUPS: Equipped with two suction cups, one for attaching the cable to the side of the tank and another for attaching the thermometer
• SUPER LONG CABLE: The cable length connected to the probe is 78.74 inch (2 m) superior to 23.62 inch (60 cm) standard cable length; Allows accurate temperature measurements in even the largest fish tanks
• 1. Open the battery cover on the back of this thermometer and insert the button battery to ensure the “+” positive electrode is face up;
• 2. Use one suction cup to attach the back of this thermometer, then fix this unit to the outer of this fish tank, another suction cup is for attaching the cable;
• 3. Submerge the probe attached cable into the fish tank;
• Manufacture: VIVOSUN

• Editor's Impressions Of The VIVOSUN
• Thermometer Accuracy [star rating='3.7']
• Quality [star rating='3.8']
• Value For Money [star rating='4.3']
• Affordability [star rating='4.7']

3. VIVOSUN 2-Pack LCD Digital Aquarium Thermometer Fish Tank Water Terrarium Temperature with Suction C...

User Ratings: 71 3

VIVOSUN First Impressions

"Fast accurate readings."

Excellent working for our bearded dragon tank. It is my opinion that everyone should have these that are in the Aquarium Hobby. I ordered a new one and it works GREAT! The non-working ones still provide 2 batteries each AND. Water tested with Autidefy brand for two hours. The lid is textured aluminum, and the suction cups don't stick to that. This doesn't bother me as it ws so cheap.

• VIVOSUN 2-Pack LCD Digital Aquarium Thermometer Fish Tank Water Terrarium Temperature with Suction Cup for Turtle
• HIGH ACCURACY: Temperature Range: -50℃ ~ +70℃ (-58 °F ~ +158 °F); This aquarium thermometer is accurate to +/- 1℃, no matter whether the probe is placed in any corner of this fish tank, an accurate temperature will be displayed
• LCD DISPLAY: Comes with a large LCD display that is easy to read clearly and accurately
• ADJUSTABLE UNIT TEMPERATURE: Easy to adjust the temp between Fahrenheit and Celsius displays; Long-press the power button to adjust the unit display
• TWO SUCTION CUPS: Equipped with two suction cups, one for attaching the cable to the side of the tank and another for attaching the thermometer
• SUPER LONG CABLE: The cable length connected to the probe is 39.37 inch (1 m) superior to 23.62 inch (60 cm) standard cable length; Allows accurate temperature measurements in even the largest fish tanks
• 1. Open the battery cover on the back of this thermometer and insert the button battery to ensure the “+” positive electrode is face up;
• 2. Use one suction cup to attach the back of this thermometer, then fix this unit to the outer of this fish tank, another suction cup is for attaching the cable;
• 3. Submerge the probe attached cable into the fish tank;
• Manufacture: VIVOSUN

• Editor's Impressions Of The VIVOSUN
• Thermometer Accuracy [star rating='3.6']
• Quality [star rating='5']
• Value For Money [star rating='5']
• Affordability [star rating='4.2']

Here Are Some Other Related Aquarium Thermometers

4. Water & Wood Aquarium Fishbowl Dual Scale Thermometer Sticker Strip 2 in 1

User Ratings: 48

Waterwood First Impressions

"Not just for aquariums!"

And for the price you cant beat it. The display can be set to Fahrenheit or Celsius. 2 deg, if it was 32, it would be a SOLID block of ice. It will make you wonder why nobody thought of it before. When I set up my newest tank I will be getting another one of these. I bought these for my dwc reservoirs. I don't think i'll ever be able to trust a digital thermometer again.

• Water & Wood Aquarium Fishbowl Dual Scale Thermometer Sticker Strip 2 in 1
• Aquarium Fishbowl Dual Scale Thermometer Sticker Strip 2 in 1
• New product with high quality
• Manufacture: Water & Wood

• Editor's Impressions Of The Waterwood
• Thermometer Accuracy [star rating='3.9']
• Quality [star rating='4.7']
• Value For Money [star rating='3.2']
• Affordability [star rating='4.5']

5. IS Icstation Digital Thermometer, Car Auto Temperature Gauge Sensor, DC 4-28V Fahrenheit Dual Displa...

User Ratings: 62 11

IS 13649 First Impressions

"Very easy to read."

Only thing I don't love is how long the cord is. I got root rot after light leaks and high water temps. Since adding one of these, it has been much easier to monitor the temp of my tanks. A battery can last you up to six months, I'd say, but expect more like three. You can glue, tape or simply cover the cords in the tank to keep them discreet. Then she followed up again on that, asking if they had arrived and were okay. I think the people who said the suction cup broke.

• IS Icstation Digital Thermometer, Car Auto Temperature Gauge Sensor, DC 4-28V Fahrenheit Dual Display, Monitor with 2 NTC Waterproof Probes for Aquarium Vehicle Fish Tank
• NTC WATERPROOF PROBES - This aquarium thermometer uses high-precision NTC waterproof metal sensor probes to measure the water temperature of the aquarium.
• DUAL SENSOR PROBES - Comes with 2 probes, enabling the thermometer to test the temperatures of two different places. For example, measuring the temp of indoor&outdoor or two different tanks at the same time.
• RED&BLUE DISPLAY - Icstation temp sensor uses a HD LCD display to let you know the Fahrenheit temperature of the fish tank in real time, thus providing a healthy and comfortable water environment for your lovely fishes. The clear red and blue display makes it easy to read temperatures no matter in bright and dark.
• WIDE TEMP RANGE - Temperature Range -58 ℉ ~ +257℉(Fahrenheit); Temperature measurement accuracy: ±1℉ (±0.1℉ when temperature within -9.9~99.9F). It can be not only used in water but also used to measure the air temperature. But the water temperature will be more accurate than that of air.
• 3 FEET WIRES - With 1 meter long wires, it is flexible to place the 2 sensor probes in aquarium tank, fish tank, reptile terrarium, refrigerator, brooders, vehicle or any other place that requires monitoring of temperature.
• ICStation has 9 years experience on electronic industry products
• Welcome to ask for discount for bulk purchase
• Provide technical assistance
• Manufacture: icstation

• Editor's Impressions Of The IS 13649
• Thermometer Accuracy [star rating='3.3']
• Quality [star rating='3.6']
• Value For Money [star rating='5']
• Affordability [star rating='4.3']

6. Zoo Med Digital Aquatic Turtle Thermometer (2 Pack)

User Ratings: 41 29

Zoo Med TH26 First Impressions

"I like these."

This temperature read a perfect 32 degrees. I have this thermometer on all my tanks. 89 I could buy Six Thermometers with Six included batteries. The non-working ones still provide 2 batteries each AND. The digital display itself is easy to read at a glance. A bit large for anything smaller than 5 gallons, but that's to be expected. I used these to raise chicks, and in my parrot cages.

• Zoo Med Digital Aquatic Turtle Thermometer (2 Pack)
• Replacement Battery Included
• Fully submersible
• Fahrenheit Scale
• Manufacture: Zoo Med Laboratories
• Product Dimensions: 4 x 1 x 4 inches; 3.2 Ounces

• Editor's Impressions Of The Zoo Med TH26
• Thermometer Accuracy [star rating='2.5']
• Quality [star rating='3.6']
• Value For Money [star rating='2.7']
• Affordability [star rating='3.4']

7. uxcell Temperature Gauge Aquarium Thermometer with Probe for Refrigerator 2pcs

uxcell First Impressions

"Not just for aquariums!"

For the price I'll probably end up putting these in all of my aquariums. He was moving slow in the winter and we realized he needed a heater! You can not swivle the thermometer to face a certain way. Instead she sent a new package of two, both of which work. I have it in both my aquariums now. So far, they're all doing their job in my four tanks and I am quite content. I used these to raise chicks, and in my parrot cages.

• uxcell Temperature Gauge Aquarium Thermometer with Probe for Refrigerator 2pcs
• Temperature range: -50°C ~ +85°C (-58°F ~ +185°F)
• Designed to be surface mounted
• Battery Operated (included) (Aprox 2 year battery life)
• Remote wired probe can read temperature up to 3.3 feet away
• Perfect for use in refrigerator, aquarium tank, fish tank, pet cage, bedroom or any other place that requires monitoring of temperature.
• Manufacture: Uxcell
• Part Number: A19010400ux0397
• Item Weight: 2.89 ounces
• Size: 2 Piece
• Power Source: Battery Powered
• Batteries Required?: No

• Editor's Impressions Of The uxcell
• Thermometer Accuracy [star rating='4.1']
• Quality [star rating='3.9']
• Value For Money [star rating='3.5']
• Affordability [star rating='4.3']

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 [star rating='3.7']
• Quality [star rating='4.6']
• Value For Money [star rating='5']
• Affordability [star rating='5']

9. 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 [star rating='2.8']
• Quality [star rating='3.4']
• Value For Money [star rating='3.4']
• Affordability [star rating='4.2']

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 [star rating='2.8']
• Quality [star rating='3.8']
• Value For Money [star rating='3.3']
• Affordability [star rating='3.2']