Editor's Choice - Our Favorite Neptonion Aquarium Thermometers

1. Neptonion Aquarium Thermometer LCD Digital Aquarium Thermometer with Suction Cup Fish Tank Water Ter...

User Ratings: 72 5

Neptonion First Impressions

"Buy these."

So far I've been very thrilled with these. 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. It is easy to use and install it'disappears' in your tank it is so unobtrusive. It is large enough to see without being obtrusive. I don't think i'll ever be able to trust a digital thermometer again. It started working as soon as I put it in and has been working ever since.

  • Neptonion Aquarium Thermometer LCD Digital Aquarium Thermometer with Suction Cup Fish Tank Water Terrarium Temperature for Fish and Reptiles Like Lizard and Turtle
  • - Easy to read : With compact design ,The Large LCD display unit is easy to read.
  • - °F / ℃ : It records a wide range of temperature (can be read in Celsius or Fahrenheit), which makes it exceptionally useful in that you can use it in any kind of fish tank.
  • ⏰ - Precise : Displaying temperature measurements within 0.1 degrees! And has a temperature range from -50 to +70 degrees celsius.
  • - Easy to set up : This thermometer comes with two parts that have suction cups that simplify the mounting process.
  • - Durable : it’s powered by one LR44 battery. These are very long lasting and easy to replace. Making this a great choice if you’re looking for an accurate and durable thermometer.
  • Manufacture: Windbells
  • Batteries: 1 LR44 batteries required. (included)
  • Editor's Impressions Of The Neptonion
  • Thermometer Accuracy [star rating='3.4']
  • Quality [star rating='4.7']
  • Value For Money [star rating='4.6']
  • Affordability [star rating='4']

Neptonion Final Thoughts

"Fast accurate readings."

Put them all in the same tank and they read very close to each other. The suction will never be the same. Instead she sent a new package of two, both of which work. You can not swivle the thermometer to face a certain way. I have kept aquariums for about 45 years. Only thing I don't love is how long the cord is. I've checked it against two other thermometers that are accurate.

Overall Score
4.4

[star rating="4.4"]
(1325 Points)

Peoples Choice - Other Highly Rated Neptonion Aquarium Thermometers

2. Neptonion Aquarium Thermometer LCD Digital Aquarium Thermometer with Suction Cup Fish Tank Water Ter...

User Ratings: 68 6

Neptonion First Impressions

"The hotter, the faster."

I used these to raise chicks, and in my parrot cages. You can use the thermometer with or without the plastic suction cup. It is large enough to see without being obtrusive. It works equally well on all of them. The display can be set to Fahrenheit or Celsius. Works well in my betta tank, but provide a couple hours for it to read temp changes. For the price I'll probably end up putting these in all of my aquariums.

  • Neptonion Aquarium Thermometer LCD Digital Aquarium Thermometer with Suction Cup Fish Tank Water Terrarium Temperature for Fish and Reptiles Like Lizard and Turtle
  • - Easy to read : With compact design ,The Large LCD display unit is easy to read.
  • - °F / ℃ : It records a wide range of temperature (can be read in Celsius or Fahrenheit), which makes it exceptionally useful in that you can use it in any kind of fish tank.
  • ⏰ - Precise : Displaying temperature measurements within 0.1 degrees! And has a temperature range from -50 to +70 degrees celsius.
  • - Easy to set up : This thermometer comes with two parts that have suction cups that simplify the mounting process.
  • - Durable : it’s powered by one LR44 battery. These are very long lasting and easy to replace. Making this a great choice if you’re looking for an accurate and durable thermometer.
  • Manufacture: Windbells
  • Batteries: 1 LR44 batteries required. (included)
  • Editor's Impressions Of The Neptonion
  • Thermometer Accuracy [star rating='4.5']
  • Quality [star rating='4.6']
  • Value For Money [star rating='5']
  • Affordability [star rating='4.2']

Neptonion Final Thoughts

"Subtracted from the tank."

Who knows, whatever it was, it was revolting! Bought the two pack of thermometers. 49 thermometer that is 100% accurate. We are using them to measure various temperatures inside and outside of a motorhome. Works well in my betta tank, but provide a couple hours for it to read temp changes. Personally I do not mind the way it looks in my aquarium. I am extremely pleased with this product.

Overall Score
4.4

[star rating="4.4"]
(386 Points)

3. Glass Hydrometer Saltwater Temperature Thermometer Aquarium Fish Tank Marine

Aisoway First Impressions

"It works great."

You can use the thermometer with or without the plastic suction cup. It is large enough to see without being obtrusive. Ordered three of these and they do the job. So the extra units will always come in handy. Set all six probes up in a terrarium with a constant temp of 88. The display can be set to Fahrenheit or Celsius. Have checked them against the glass thermometers and the accuracy is right on.

  • Glass Hydrometer Saltwater Temperature Thermometer Aquarium Fish Tank Marine
  • Aquarium and exo terra reptile tank thermometer.
  • Size: 19.5cm.
  • Package included:1 x Thermometer.
  • Applicable both on the land and in the water.
  • Made of high quality glass, clear and easy to read. Stable and durable enough for a long time use.
  • Manufacture: Aisoway
  • Item Weight: 1.13 ounces
  • Product Dimensions: 1.97 x 1.97 x 1.97 inches
  • Editor's Impressions Of The Aisoway
  • Thermometer Accuracy [star rating='4']
  • Quality [star rating='4.6']
  • Value For Money [star rating='4.9']
  • Affordability [star rating='5']

Aisoway Final Thoughts

"So glad i got these!"

And for the price you cant beat it. 49 thermometer that is 100% accurate. This company is taking the long term view of how to do business right. The plastic from the suction cup quickly turned from a clear to a milky white. I am extremely pleased with this product. This is how you calibrate a thermometer. This company is taking the long term view of how to do business right.

Overall Score
5.0

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

4. DEVMO 2PCS Digital LCD Thermometer Temperature Gauge Aquarium with Probe for Vehicle Reptile Terrari...

User Ratings: 41 15

DEVMO First Impressions

"Very accurate."

These things are useful for a lot besides pet husbandry, too. Water tested with Autidefy brand for two hours. Simple fix, you adjust the thermometer within the suction cup and VIOLA! I was using one of those ubiquitous cheap digital thermometers on Amazon. So far, they're all doing their job in my four tanks and I am quite content. This doesn't bother me as it ws so cheap. Checked with temp gun and the terrarium was on target at 88.

  • DEVMO 2PCS Digital LCD Thermometer Temperature Gauge Aquarium with Probe for Vehicle Reptile Terrarium Fish Tank Refrigerator(Fahrenheit) Black
  • ★Remote wired probe can read temperature up to 3.3 feet away
  • ★Temperature range: -58°F~ +199°F
  • ★Designed to be embedded or can be surface mounted
  • ★Battery Operated (included) (Aprox 2 year battery life)Size 1"x1.75"
  • ★Mounting Hole Size 1"x 1.75" (0.5" deep).
  • Manufacture: DEVMO
  • Item Weight: 0.634 ounces
  • Editor's Impressions Of The DEVMO
  • Thermometer Accuracy [star rating='4.1']
  • Quality [star rating='4.4']
  • Value For Money [star rating='4.5']
  • Affordability [star rating='4.2']

DEVMO Final Thoughts

"They all were within."

Bought the two pack of thermometers. You can glue, tape or simply cover the cords in the tank to keep them discreet. I had my heater set at 73-degrees and the thermometers showed 74. Then she followed up again on that, asking if they had arrived and were okay. Personally I do not mind the way it looks in my aquarium. Love it, it's easy to read and keeps an accurate temp. Ambient room temperature measures 72.

Overall Score
3.7

[star rating="3.7"]
(7 Points)

5. Waterproof Digital Instant Read Food and Meat Thermometer for Kitchen, Outdoor Cooking, BBQ, and Gri...

User Ratings: 53 9

star sound source First Impressions

"Would buy again."

Good cheap accurate aquarium thermometer. When I set up my newest tank I will be getting another one of these. I'm pretty sure those reviewers have acrylic tanks. I came here to give this product a positive review. 6 in a pack, extra batteries, easy set up, great price. Excellent working for our bearded dragon tank. You can glue, tape or simply cover the cords in the tank to keep them discreet.

  • Waterproof Digital Instant Read Food and Meat Thermometer for Kitchen, Outdoor Cooking, BBQ, and Grill with Fahrenheit and Celsius can be converted (BBQ TP)
  • Instant Reading of The Thermometer is Quick: the instant reading thermometer uses a food grade stainless steel probe sensor to obtain accurate temperature readings, oF / oC can be switched.
  • Free Switching Between Celsius and Fahrenheit: Celsius temperature range -50°C~300°C; Fahrenheit temperature range of -58°F~572°F to ±1°C, suitable for indoor and outdoor cooking, barbecue, barbecue, etc.
  • Waterproof Rating is IP67: The thermometer can be cleaned under running water without worry! Rugged ABS plastic body for accidental drops or other crashes
  • Easy to Use: Sensitive probe, easy to use, precise temperature measurement, easy to store and carry.
  • Customer Service: If you have any questions or problems, please feel free to contact us and we will get back to you within 24 hours.
  • Manufacture: star sound source
  • Item Weight: 0.564 ounces
  • Batteries: 1 CR2 batteries required. (included)
  • Editor's Impressions Of The star sound source
  • Thermometer Accuracy [star rating='4.8']
  • Quality [star rating='3.3']
  • Value For Money [star rating='4.1']
  • Affordability [star rating='4']

star sound source Final Thoughts

"Fish and me happy."

It's kind of difficult to hide and keep out of the way. I used to have a large hang in the side tank that you couldn't miss. I have mine on my 60 gallon cube marine tank. Now I'm getting back in on a much smaller scale with 3 gallon Acrylic Nano tanks. 6 inch long Bala Sharks that are known to be very unruly and boisterous. Ambient room temperature measures 72. I have mine on my 60 gallon cube marine tank.

Overall Score
3.9

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

6. General Tools AQ150 In and Out Aquarium Thermometer with Waterproof Probe

User Ratings: 61 8

General Tools AQ150 First Impressions

"Highly Recommended."

89 I could buy Six Thermometers with Six included batteries. I've checked it against two other thermometers that are accurate. I was using one of those ubiquitous cheap digital thermometers on Amazon. Instead she sent a new package of two, both of which work. I got root rot after light leaks and high water temps. 2 deg, if it was 32, it would be a SOLID block of ice. I find that the temps are accurate, and this product gives added peace of mind.

  • General Tools AQ150 In and Out Aquarium Thermometer with Waterproof Probe
  • General Tools and Instruments AQ150 In and Out Aquarium Thermometer monitors temperature in an aquarium or other marine environment
  • The digital thermometer can measure temperatures ranging from -58 to 158 Degrees Fahrenheit (-50 to 70 Degrees Celsius)
  • Digital aquarium thermometer has both minimum and maximum memory and a high/low temperature alarm; keep the water temperature right where you want it
  • A jumbo digital thermometer displays temperature in the aquarium; toggle between ambient/remote sensor temperature and between Fahrenheit and Celsius
  • The industrial thermometer design features both a backlight display and a convenient foldaway stand; CE approved
  • Manufacture: General Tools & Instruments
  • Product Dimensions: 0.5 x 2 x 2.88 inches; 3.04 Ounces
  • Batteries: 1 AAA batteries required. (included)
  • Editor's Impressions Of The General Tools AQ150
  • Thermometer Accuracy [star rating='3.1']
  • Quality [star rating='3.1']
  • Value For Money [star rating='4.5']
  • Affordability [star rating='3.3']

General Tools AQ150 Final Thoughts

"Would recommend!"

I bent it a little bit and when I put it back it was perfectly fine. The units each had a battery in place and situated for immediate use. 82 PER THERMOMETER with battery included. Since it is a mercury thermometer, it is very accurate. Then she followed up again on that, asking if they had arrived and were okay. The display can be set to Fahrenheit or Celsius. One extra battery came with each unit.

Overall Score
4.1

[star rating="4.1"]
(254 Points)

7. LCD Digital Fish Tank Temperature Control Sensor Thermometer Wired Aquarium Fish Tank

Unknown First Impressions

"2 deg of 32."

This company is taking the long term view of how to do business right. 2 deg, if it was 32, it would be a SOLID block of ice. I used these to raise chicks, and in my parrot cages. I have mine on my 60 gallon cube marine tank. I have kept aquariums for about 45 years. So versatile, I can read the temperatures literally anywhere. Still a recommendation for me due to price and accuracy.

  • LCD Digital Fish Tank Temperature Control Sensor Thermometer Wired Aquarium Fish Tank
  • Manufacture: Unknown
  • Editor's Impressions Of The Unknown
  • Thermometer Accuracy [star rating='3.1']
  • Quality [star rating='3.2']
  • Value For Money [star rating='3.2']
  • Affordability [star rating='4.8']

Unknown Final Thoughts

"A solid five stars."

I have this thermometer on all my tanks. So versatile, I can read the temperatures literally anywhere. Simple fix, you adjust the thermometer within the suction cup and VIOLA! At least in the first 3 months of use. For something so cheap, they are working remarkably well. In this scenario it would probably get knocked loose a lot. Still a recommendation for me due to price and accuracy.

Overall Score
4.0

[star rating="4"]
(1 Points)

8. UPLY Betta Aquarium Thermometer LCD Digital Fish Tank Thermometer Waterproof Tank Thermometer with S...

User Ratings: 49

UPLY First Impressions

"It's accurate I tell you."

At least in the first 3 months of use. I don't think i'll ever be able to trust a digital thermometer again. You can glue, tape or simply cover the cords in the tank to keep them discreet. The plastic from the suction cup quickly turned from a clear to a milky white. One being a very expensive digital. I tested this in a cup crammed full of ice and some water. I'm pretty sure those reviewers have acrylic tanks.

  • UPLY Betta Aquarium Thermometer LCD Digital Fish Tank Thermometer Waterproof Tank Thermometer with Suction Cup Fresh Water Salt Water
  • Best Thermometer For Your Fish --- How to keep our fish healthy? The right temperature is critical. Every fish has a water temperature suitable for them to survive. As a breeder, we need to keep track of the temperature of the water in our fish tanks. Therefore, having an an accurate and effective aquarium thermometer is important to ensure the perfect temperature for your pet fish.
  • EASY TO READ --- No need to stop, no need to observe the scale, only you need to gently glance, you can easily get an accurate water temperature from UPLY Aquarium Thermometer's Display. Very Easy!!
  • COMPLETELY WATERPROOF --- UPLY aquarium thermometer uses waterproof ring design, can completely submerge into the water, water temperature measurement is more accurate. ( Your Betta can also use it as a rest leaf.)
  • WIRELESS --- The extra cables will make your tank look messy and affect the activity space of your fish. UPLY Aquarium Thermometer doesn't have any extra lines, and the simple design lets your use easier
  • WIDE TEMPERATURE RANGE --- Temperature range -58°F to 158°F, allows you to use this thermometer at any temperature. Not only a fish tank, you can use it wherever you want.
  • Manufacture: UPLY
  • Batteries: 1 LR44 batteries required. (included)
  • Editor's Impressions Of The UPLY
  • Thermometer Accuracy [star rating='3.7']
  • Quality [star rating='4.4']
  • Value For Money [star rating='3.2']
  • Affordability [star rating='2.9']

UPLY Final Thoughts

"Doing the math."

It will make you wonder why nobody thought of it before. I bent it a little bit and when I put it back it was perfectly fine. Who knows, whatever it was, it was revolting! Love it, it's easy to read and keeps an accurate temp. A battery can last you up to six months, I'd say, but expect more like three. I ordered this guy and it was 6 degrees hotter than the digital! When and if we run out of this batch, I'll instantly order another batch.

Overall Score
3.5

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

9. Amagle Indoor Digital Thermometer Aquarium Submersible Fish Tank Terrarium LCD Digital Thermometer

User Ratings: 51

Amagle YG_DMH002 First Impressions

"Or left a mark."

I had my heater set at 73-degrees and the thermometers showed 74. 50 thermometers, reads much easier and no suction cup residue, also looks better. One extra battery came with each unit. 89 I could buy Six Thermometers with Six included batteries. The units each had a battery in place and situated for immediate use. 6F all six took about three minutes to read between 88. I can't say which is the most accurate and don't really care.

  • Amagle Indoor Digital Thermometer Aquarium Submersible Fish Tank Terrarium LCD Digital Thermometer
  • Celsius or Fahrenheit selectable
  • Measure both tank and indoor temperature
  • Large LCD display simultaneously showing aquarium & ambient temperature
  • With adhesive tape at back side for easy sticking on aquarium tank
  • Sensor at the back of the thermometer to measure water temperature from glass. Therefore, normally it would measure 1 degree higher than actual water
  • Manufacture: Amagle
  • Item Weight: 1.1 pounds
  • Product Dimensions: 5.51 x 3.15 x 0.39 inches
  • Editor's Impressions Of The Amagle YG_DMH002
  • Thermometer Accuracy [star rating='3.7']
  • Quality [star rating='4.8']
  • Value For Money [star rating='3.5']
  • Affordability [star rating='3.1']

Amagle YG_DMH002 Final Thoughts

"It's accurate I tell you."

Only thing I don't love is how long the cord is. The digital display is nice and small as well. I have kept aquariums for about 45 years. I ordered this guy and it was 6 degrees hotter than the digital! The units each had a battery in place and situated for immediate use. If the digital display starts to get dim, it's time for a new battery. I got root rot after light leaks and high water temps.

Overall Score
4.0

[star rating="4"]
(3 Points)

10. uxcell Temperature Gauge Aquarium Thermometer Celsius with Probe for Fish Tank 3pcs

User Ratings: 69

uxcell First Impressions

"Currently maintains a 76."

Then is started to give a low reading, and it is not reading the correct temperature. Water tested with Autidefy brand for two hours. One of my aquariums is glass, and the other two are plastic. 6 in a pack, extra batteries, easy set up, great price. Personally I do not mind the way it looks in my aquarium. So this is the extreme end of the high temperature range. Now that the chickens are grown, I have one out in the coop as well.

  • uxcell Temperature Gauge Aquarium Thermometer Celsius with Probe for Fish Tank 3pcs
  • Temperature range: -50℃ ~ 110℃ (-58°F ~ + 158°F)
  • Designed to be embedded or can 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: A19010400ux0395
  • Item Weight: 3.45 ounces
  • Size: 3 Piece
  • Power Source: Battery Powered
  • Batteries Required?: No
  • Editor's Impressions Of The uxcell
  • Thermometer Accuracy [star rating='3.9']
  • Quality [star rating='4']
  • Value For Money [star rating='4.1']
  • Affordability [star rating='4.8']

uxcell Final Thoughts

"All you need."

It is my opinion that everyone should have these that are in the Aquarium Hobby. I read some of the 1 star reviews and most of them are not about the product. My only complaint is that they tend to be a one time use. This company is taking the long term view of how to do business right. SIX Digital Thermometers with SIX batteries INCLUDED working so well. Far more accurate than the usual small glass ones or external LCD strips. I have this thermometer on all my tanks.

Overall Score
4.1

[star rating="4.1"]
(4 Points)

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