Editor's Choice - Our Favorite Fischuel Aquarium Thermometers

1. 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)

2. Fenleo Aquarium LCD Digital Thermometer Fish Tank Water Terrarium Temperature

Fenleo Aquarium First Impressions

"Works perfect."

It's kind of difficult to hide and keep out of the way. One extra battery came with each unit. The units each had a battery in place and situated for immediate use. It will make you wonder why nobody thought of it before. My only complaint is that they tend to be a one time use. 6 inch long Bala Sharks that are known to be very unruly and boisterous. 2 deg, if it was 32, it would be a SOLID block of ice.

  • Fenleo Aquarium LCD Digital Thermometer Fish Tank Water Terrarium Temperature
  • ♥Large, easy to read LCD display. Compact design for discrete use
  • ♥Temperature range -50 degree Celsius~ + 110 degree Celsius; Cable length: approx. 3.3 feet
  • ♥Powered by one LR44 button cell (included)
  • ♥Application: Aquarium, Indoor, Refrigerator, Human Body, Car, CPU Heat Diffuser
  • ♥Submerge probe into fish tank to measure water temperature (Submerge probe only, do not submerge thermometer in water)
  • Manufacture: Lingsun Tech
  • Editor's Impressions Of The Fenleo Aquarium
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Fenleo Aquarium Final Thoughts

"6 tenths of a degree."

He acted aggressively towards it and so I ultimate ended up removing it due to that. My poor fish was in 86 degrees water for a month. The digital display is nice and small as well. In the right situation this magnet thermometer is the best available. I have this thermometer on all my tanks. I ordered this guy and it was 6 degrees hotter than the digital! Was going to get a floater until I saw this magnetic one!

Overall Score
4.0


(1 Points)

3. Towashine Fish Tank Thermometer U Shape Hanging on Temperature Monitor Gauge for 6mm Thick Glass Aqu...

Towashine First Impressions

"And he is a betta."

89 I could buy Six Thermometers with Six included batteries. I used these on a number of my aquariums that have discus fish in them. I don't think i'll ever be able to trust a digital thermometer again. This doesn't bother me as it ws so cheap. Place it on your aquarium and you are good to go. This thermometer is spot on accurate. When and if we run out of this batch, I'll instantly order another batch.

  • Towashine Fish Tank Thermometer U Shape Hanging on Temperature Monitor Gauge for 6mm Thick Glass Aquarium
  • U shape design is convenient to use and you can hang it on fish tank, no need suction cup
  • Fit for 6mm thickness glass fish tank, 5.9" in length
  • Temperature range from 0℃ to 40℃
  • Made of high quality glass and easy to read accurate numbers
  • Great for fresh water and salt water
  • Manufacture: Towashine
  • Product Dimensions: 5.91 x 0.02 x 0.02 inches; 1.23 Ounces
  • Editor's Impressions Of The Towashine
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Towashine Final Thoughts

"Great price too."

I have it in both my aquariums now. This company is taking the long term view of how to do business right. I can't say which is the most accurate and don't really care. I read some of the 1 star reviews and most of them are not about the product. We are using them to measure various temperatures inside and outside of a motorhome. I have to admit I had two reasons for buying six. The non-working ones still provide 2 batteries each AND.

Overall Score
3.6


(2 Points)

4. uxcell Plastic Aquarium Self Adhesive Water Temperature Dual Thermometer Sticker 2 in 1

uxcell a17022200ux1475 First Impressions

"Very accurate."

I think the people who said the suction cup broke. The display can be set to Fahrenheit or Celsius. We are using them to measure various temperatures inside and outside of a motorhome. It is large enough to see without being obtrusive. I use a small flashlight if I don't want to brighten the area. Far more accurate than the usual small glass ones or external LCD strips. So the extra units will always come in handy.

  • uxcell Plastic Aquarium Self Adhesive Water Temperature Dual Thermometer Sticker 2 in 1
  • Weight: 2g; Color: White,Black,Brown
  • Package Content: 2 in 1 x Aquarium Temperature Stickers; Product Name: Aquarium Temperature Sticker
  • Material: Plastic; Tenperature Range: (Degrees Celsius):-18 to 34
  • Long Stickers Size: 13 x 2.8 x 0.1cm/5.1" x 1.1" x 0.03"(L*W*H)
  • Round Stickers Size: 5 x 0.1cm/2" x 0.03"(W*H)
  • Manufacture: uxcell
  • Editor's Impressions Of The uxcell a17022200ux1475
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

uxcell a17022200ux1475 Final Thoughts

"And I am glad I did."

I use a small flashlight if I don't want to brighten the area. Since it is a mercury thermometer, it is very accurate. So much easier than the ones that hang on the inside. My only complaint is that they tend to be a one time use. I have to admit I had two reasons for buying six. The non-working ones still provide 2 batteries each AND. A battery can last you up to six months, I'd say, but expect more like three.

Overall Score
5.0


(1 Points)

5. 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)

6. 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)

7. AURYNNS Pet Thermometer Dog Thermometer, Fast Digital Veterinary Thermometer, Pet Thermometer for Do...

User Ratings: 61 9

AURYNNS First Impressions

"So glad i got these!"

My 50+ eyes cannot read a regular tank thermometer without squinting. When I set up my newest tank I will be getting another one of these. I just wrote it off as a minor loss. I tested this in a cup crammed full of ice and some water. The plastic from the suction cup quickly turned from a clear to a milky white. If the digital display starts to get dim, it's time for a new battery. I have bought many many temperature gauges for my various fish tanks over the years.

  • AURYNNS Pet Thermometer Dog Thermometer, Fast Digital Veterinary Thermometer, Pet Thermometer for Dogs, Cats, Horse,Cattle, Pigs,Birds, Sheep.(Battery Included)
  • Fast Pet Thermometer for all pets. Accurate to within +/- 0.2°F.
  • Measure pets temperature in anus, not in Ear or Mouth.
  • LCD display & Memory function
  • An alarm will sound if temperature is exceeded.
  • ℃ and °F switchable, easy to read.
  • Manufacture: AURYNNS
  • Item Weight: 5.6 ounces
  • Product Dimensions: 7.87 x 4.33 x 1.38 inches
  • Batteries: 2 AAA batteries required. (included)
  • Editor's Impressions Of The AURYNNS
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

AURYNNS Final Thoughts

"Very accurate."

I've checked it against two other thermometers that are accurate. The suction cups work well anywhere I have placed it it has not Fallen. I don't think they are backlit but for the price they are still nice. 89 I could buy Six Thermometers with Six included batteries. All were Close enough for a fish tank and other uses. Since adding one of these, it has been much easier to monitor the temp of my tanks. 6 in a pack, extra batteries, easy set up, great price.

Overall Score
4.2


(183 Points)

8. Stick-on Thermometer for Tortoise and Reptiles, Creates Ideal Habitat, Keeps Turtle, Gecko, Dragon, ...

User Ratings: 67 19

SunGrow First Impressions

"No issues."

The digital display itself is easy to read at a glance. I got root rot after light leaks and high water temps. 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 my opinion that everyone should have these that are in the Aquarium Hobby. I bent it a little bit and when I put it back it was perfectly fine. It will make you wonder why nobody thought of it before.

  • Stick-on Thermometer for Tortoise and Reptiles, Creates Ideal Habitat, Keeps Turtle, Gecko, Dragon, and Snake Healthy, Peel-and-Go, Accurate Monitoring of Vivarium
  • ✔ MAINTAINS IDEAL ENVIRONMENT FOR TORTOISE AND REPTILES --- Cold-blooded species such as snakes, turtles and tortoises cannot change their body temperature independently with their environmental temperature. By using a Stick-on Thermometer by SunGrow, you will be able to monitor and maintain correct temperatures that directly affect the overall health of a domestic turtle or tortoise.
  • ✔ REGULATES BODY TEMPERATURE OF COLD-BLOODED SPECIES --- Since body temperature determines the rise and fall of activity levels of these cold-blooded animals, they need to be able to regulate theirs along with their environment. Failure to do this may lead to health problems.
  • ✔ KEEPS YOUR COLD-BLOODED PET HEALTHY --- On-stick Thermometer helps in determining if your reptiles and amphibians live in ideal temperature conditions. Living in an unsuitable environmental temperature can cause lack of appetite and may be the cause behind ill-health of your prized pets.
  • ✔ FOR LONG LIFESPAN --- A healthy turtle may contract maladies if ideal living conditions aren’t provided and not properly monitored. We should never rely on what feels warm to humans as these may not be what your pets need. You’ll notice changes in turtles or tortoises' health, if they are kept between 65 and 72 degrees Fahrenheit for a prolonged period of time.
  • ✔ EASY TO INSTALL, USE AND READ --- Simply peel and stick and experience no worry tortoise and reptiles handling! Stick-on Thermometer by SunGrow has a simple design which complements your easy to care lifestyle for your pets. It is black in color with big, easy to read fonts on white color. Measuring 5.2” tall by 0.7” wide (13cm x 1.8cm), it also has a blue and green indicator that tells you the temperature it reads.
  • Manufacture: Luffy Pets Collection
  • Editor's Impressions Of The SunGrow
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

SunGrow Final Thoughts

"I AM SO HAPPY."

We are using them to measure various temperatures inside and outside of a motorhome. It worked great and I highly recommend it! I have this thermometer on all my tanks. It is easy to use and install it'disappears' in your tank it is so unobtrusive. I had my heater set at 73-degrees and the thermometers showed 74. I guess these units do not like saltwater. I find that the temps are accurate, and this product gives added peace of mind.

Overall Score
4.1


(17 Points)

9. Sea Hydrometer Salinity Meter Specific Gravity Test for Aquarium Fish Tank Water Marine Sea Saltwate...

User Ratings: 50 14

pranovo 4346782459 First Impressions

"Would recommend!"

However, Lucy at Zacro read this review and emailed me. I am extremely pleased with this product. This is my first 5 star review out of many many reviews on Amazon. The non-working ones still provide 2 batteries each AND. Very impressed, I have now had them in used for a month so far. Good cheap accurate aquarium thermometer. I guess these units do not like saltwater.

  • Sea Hydrometer Salinity Meter Specific Gravity Test for Aquarium Fish Tank Water Marine Sea Saltwater
  • ROTABLE DEVICE: This specific gravity meter is designed to give temperature-corrected readings in warm water aquariums. Includes a self-leveling, hanging device and allows your hands to stay dry, avoiding contamination of aquarium.
  • ACCURATELY MEASURE: Quickly, easily, and accurately measure your marine aquarium's salt level and specific gravity with Instant Ocean Hydrometer
  • CLEARLY INDICATED: Full range scale features easy to read markings with safe zone clearly indicated. Small and waterproof. No sensor wire needed.
  • UNIQUE DESIGN: This product is designed with an automatic level function, can automatically identify the level to avoid errors.
  • CLEANING: Do not disassemble. Periodic cleaning is recommended to remove deposits that accumulate on pointer causing in correct reading. Soak hydrometer in mild acid(vinegar) for 30 minutes to remove any deposits that may build up on pointer. Rinse with tap water and lat unit air dry.
  • Manufacture: pranovo
  • Editor's Impressions Of The pranovo 4346782459
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

pranovo 4346782459 Final Thoughts

"The hotter, the faster."

It is always where yo last put it and it is very easy to see and read. So this is the extreme end of the high temperature range. The digital display itself is easy to read at a glance. Excellent working for our bearded dragon tank. They are within a degree or two of other thermometers I've checked to compare them. Have checked them against the glass thermometers and the accuracy is right on. Excellent working for our bearded dragon tank.

Overall Score
3.8


(41 Points)

10. SeeZQ 2 Pack Digital Aquarium Thermometer Fish Tank Water Terrarium Temperature …

User Ratings: 55 7

SeeZQ First Impressions

"Appears to be accurate."

The temperature fluctuated a lot with it. I recommend gluing the suction cups in place where needed for long-term installation. 89 I could buy Six Thermometers with Six included batteries. If the digital display starts to get dim, it's time for a new battery. I have mine on my 60 gallon cube marine tank. This company is taking the long term view of how to do business right. All were Close enough for a fish tank and other uses.

  • SeeZQ 2 Pack Digital Aquarium Thermometer Fish Tank Water Terrarium Temperature …
  • Manufacture: SeeZQ
  • Product Dimensions: 3.94 x 3.94 x 7.87 inches; 7.05 Ounces
  • Batteries: 1 LR44 batteries required.
  • Editor's Impressions Of The SeeZQ
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

SeeZQ Final Thoughts

"6 tenths of a degree."

I have always had trouble reading the color temp. I have bought many many temperature gauges for my various fish tanks over the years. Since adding one of these, it has been much easier to monitor the temp of my tanks. It worked great and I highly recommend it! 6 in a pack, extra batteries, easy set up, great price. One being a very expensive digital. This company is taking the long term view of how to do business right.

Overall Score
4.0


(16 Points)

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