Editor's Choice - Our Favorite AquaTop Aquarium Thermometers

1. AquaTop ATP Thermometer Submersible

User Ratings: 28 16

AquaTop DTG-15 First Impressions

"Very accurate."

So, in those cases, I find it easier to simply replace it. I have always had trouble reading the color temp. So far, they're all doing their job in my four tanks and I am quite content. For something so cheap, they are working remarkably well. Just BE CAREFUL WHEN ADJUSTING, IT IS GLASS AND WILL BREAK. I used to have a large hang in the side tank that you couldn't miss. My only complaint is that they tend to be a one time use.

  • AquaTop ATP Thermometer Submersible
  • The sleek, compact designs provide easy placement, making the DTG-15 and dtg-25 the perfect choice for aquariums of all sizes.
  • The digital thermometers are accurate to +/- 2 degrees Fahrenheit.
  • The DTG-15 is fully submersible and has a suction cup mount.
  • The dtg-25 has an adhesive back for easy installation and must be mounted externally.
  • Suction Cup mount
  • Manufacture: Aquatop
  • Product Dimensions: 8 x 3 x 2 inches; 1.41 Ounces
  • Editor's Impressions Of The AquaTop DTG-15
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

AquaTop DTG-15 Final Thoughts

"I opened the first three."

I was using one of those ubiquitous cheap digital thermometers on Amazon. These digital thermometers are great and there is no guesswork involved. You dont HAVE to stick the display onto your tank. Works well in my betta tank, but provide a couple hours for it to read temp changes. I can't say which is the most accurate and don't really care. So much easier than the ones that hang on the inside. This temperature read a perfect 32 degrees.

Overall Score
3.1


(6 Points)

Peoples Choice - Other Highly Rated AquaTop Aquarium Thermometers

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. Non-Contact Infrared Thermometer, ELVASEN Digital Laser Temperature Gun Forehead Infrared Thermomete...

User Ratings: 38 27

ELVASEN First Impressions

"Great product!"

82 PER THERMOMETER with battery included. In this scenario it would probably get knocked loose a lot. I find that the temps are accurate, and this product gives added peace of mind. Very impressed, I have now had them in used for a month so far. And is easily hidden behind a plant. I have this thermometer on all my tanks. Excellent working for our bearded dragon tank.

  • Non-Contact Infrared Thermometer, ELVASEN Digital Laser Temperature Gun Forehead Infrared Thermometer for Baby, Adult, Child, Surface of Objects
  • Measurement accuracy: Body Temperature -- outside (35-42) ℃ ± 0.3 ℃ / 0.54 ℉ / (35-42) ℃ ± 0.2 ℃ / 0.4 ℉; Object Temperature: ± 1.0 ℃ / 1.8 ℉.(Not include battery)
  • Measurement range: Body Temperature -- 32 ℃ to 42.9 ℃ (89.6 ℉ to 109.2 ℉); Object Temperature -- 0 ℃ to 100 ℃ (32 ℉ to 212 ℉)
  • Product Introduction: This product is composed of high-precision infrared sensor, microprocessor, memory chip, power supply, electro-acoustic component, liquid crystal display and housing. It can quickly and accurately measure human body temperature or object temperature.
  • Usage rules -- Human Body Measurement: While waiting, point the thermometer probe at the center of the forehead (above the eyebrow center) and keep it vertical, distance 3 ~ 5cm, press the measurement key to display the measured temperature within about 0.5 seconds; While waiting, press the "-" button once to switch to the temperature measurement mode. Point the thermometer probe at the object and press the measurement button. The measurement temperature will be displayed in about 1 seconds.
  • Working Principle: This product adopts infrared temperature sensing method to measure temperature display or data output. It displays the temperature of the measured object by measuring the thermal radiation of the forehead or object.
  • Manufacture: ELVASEN
  • Editor's Impressions Of The ELVASEN
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

ELVASEN Final Thoughts

"So far loving it."

Personally I do not mind the way it looks in my aquarium. For something so cheap, they are working remarkably well. My only complaint is that they tend to be a one time use. Now I'm getting back in on a much smaller scale with 3 gallon Acrylic Nano tanks. So much easier than the ones that hang on the inside. Who knows, whatever it was, it was revolting! I can't say which is the most accurate and don't really care.

Overall Score
3.4


(48 Points)

4. Jardin Suction Cup Mounting Submersible Aquarium Index Thermometer, -10 to 50 Degree C

User Ratings: 46

JARDIN a12081700ux0929 First Impressions

"It sticks very firmly."

The non-working ones still provide 2 batteries each AND. However, Lucy at Zacro read this review and emailed me. Then she followed up again on that, asking if they had arrived and were okay. So much so that I purchased a second set of 6. Personally I do not mind the way it looks in my aquarium. He was moving slow in the winter and we realized he needed a heater! In this scenario it would probably get knocked loose a lot.

  • Jardin Suction Cup Mounting Submersible Aquarium Index Thermometer, -10 to 50 Degree C
  • Product Name: Aquarium Index Thermometer; Temperature Reading Range
  • Product Name: Aquarium Index Thermometer; Temperature Reading Range: Aquarium: -50 Celsius Degree to +70Celsius Degree
  • Main Material: Plastic; Total Length: 107cm/42.1"; Display Size: 5.8 x 3.7 x 1.2cm/2.3" x 1.5" x 0.48"(L x W x T)
  • Probe Length: 2.1 × 0.5cm/0.83" × 0.2"(L x D); Cable Length(Approx.): 101cm/39.8"
  • Net Weight: 24g; Package Contents: 1 × Aquarium Index Thermometer,2 × Suction Cups
  • Manufacture: Dragonmarts Co. Ltd. / Uxcell
  • Product Dimensions: 42.13 x 0.47 x 1.46 inches; 0.35 Ounces
  • Editor's Impressions Of The JARDIN a12081700ux0929
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

JARDIN a12081700ux0929 Final Thoughts

"Disappointed."

A battery can last you up to six months, I'd say, but expect more like three. Only thing I don't love is how long the cord is. Excellent working for our bearded dragon tank. He acted aggressively towards it and so I ultimate ended up removing it due to that. Who knows, whatever it was, it was revolting! The display can be set to Fahrenheit or Celsius. These are the perfect size to be easily read while not being obtrusive.

Overall Score
4.2


(10 Points)

5. Water & Wood New Aquarium Fish Tank Water Submersible Suction Glass Thermometer Weatherglass

User Ratings: 29 28

Waterwood First Impressions

"So far loving it."

He acted aggressively towards it and so I ultimate ended up removing it due to that. All are pretty accurate within one degree as claimed. Just BE CAREFUL WHEN ADJUSTING, IT IS GLASS AND WILL BREAK. So versatile, I can read the temperatures literally anywhere. One of my aquariums is glass, and the other two are plastic. Ambient room temperature measures 72. These things are useful for a lot besides pet husbandry, too.

  • Water & Wood New Aquarium Fish Tank Water Submersible Suction Glass Thermometer Weatherglass
  • New Aquarium Fish Tank Water Submersible Suction Glass Thermometer Weatherglass
  • New item with high quality
  • Manufacture: Water & Wood
  • Editor's Impressions Of The Waterwood
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Waterwood Final Thoughts

"Not just for aquariums!"

I can't say which is the most accurate and don't really care. These things are useful for a lot besides pet husbandry, too. Only thing I don't love is how long the cord is. I recommend gluing the suction cups in place where needed for long-term installation. I did have a problem with one in my first pack of 6. It is my opinion that everyone should have these that are in the Aquarium Hobby. Since adding one of these, it has been much easier to monitor the temp of my tanks.

Overall Score
3.1


(5 Points)

6. AUTIDEFY LCD Digital Aquarium Thermometer Fish Tank Water Terrarium Temperature

User Ratings: 63 7

AUTIDEFY First Impressions

"8 C lower than this."

This thermometer is spot on accurate. It is large enough to see without being obtrusive. Bought the two pack of thermometers. The suction works for a month at a time- in pool and hot tub circulation. Very impressed, I have now had them in used for a month so far. 82 PER THERMOMETER with battery included. And for the price you cant beat it.

  • AUTIDEFY LCD Digital Aquarium Thermometer Fish Tank Water Terrarium Temperature
  • Submerge probe into fish tank to measure water temperature (Submerge probe only, do not submerge thermometer in water)
  • Digital °C /° F thermometer;Temperature range -50°c ~ + 70°c,Operating temperature -10°c ~ +50°c
  • Easy to apply suction cup and easy to read LCD screen; Temperature readings to within 0.1 degree
  • Powered by one LR44 button cell (included)
  • Package Contents: 3 x Battery; 3 x Digital Thermometer;3 x Probe
  • Manufacture: AUTIDEFY
  • Editor's Impressions Of The AUTIDEFY
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

AUTIDEFY Final Thoughts

"I must say."

Water tested with Autidefy brand for two hours. For something so cheap, they are working remarkably well. This is my first 5 star review out of many many reviews on Amazon. I was using one of those ubiquitous cheap digital thermometers on Amazon. SIX Digital Thermometers with SIX batteries INCLUDED working so well. I had my heater set at 73-degrees and the thermometers showed 74. Personally I do not mind the way it looks in my aquarium.

Overall Score
4.2


(386 Points)

7. Aoile Aquarium Thermometer for Fish Tank,Aquarium Waterproof Hydraulic Gauge Submersible Glass The...

Aoile First Impressions

"There is no question."

These digital thermometers are great and there is no guesswork involved. The only reason I didn't give this 5 stars is because my betta fish didn't like it. I used these on a number of my aquariums that have discus fish in them. Who knows, whatever it was, it was revolting! One of my aquariums is glass, and the other two are plastic. So far I've been very thrilled with these. I ordered a new one and it works GREAT!

  • Aoile Aquarium Thermometer for Fish Tank,Aquarium Waterproof Hydraulic Gauge Submersible Glass Thermometer with Suction Cup 14CM
  • --Aquarium and alien reptile thermometers.
  • --Made of quality glass, clear and easy to read.
  • --Stable, long-term use.
  • --Suitable for land and water.
  • --Strong suction cup.
  • Manufacture: Aoile
  • Item Weight: 0.63 Ounces
  • Editor's Impressions Of The Aoile
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Aoile Final Thoughts

"Close enough I reckon!"

One extra battery came with each unit. So, in those cases, I find it easier to simply replace it. Have checked them against the glass thermometers and the accuracy is right on. 82 PER THERMOMETER with battery included. Place it on your aquarium and you are good to go. I got root rot after light leaks and high water temps. All are pretty accurate within one degree as claimed.

Overall Score
5.0


(1 Points)

8. Polarbear's Pet Shop New! Digital LCD Aquarium Fish Thermometer Water Terrarium Black Free Batteries...

Polarbear's Pet Shop First Impressions

"Which is good."

As you can see from my photos, in both°F and°C, all six are within. It is my opinion that everyone should have these that are in the Aquarium Hobby. These are the perfect size to be easily read while not being obtrusive. We are using them to measure various temperatures inside and outside of a motorhome. They are within a degree or two of other thermometers I've checked to compare them. I bent it a little bit and when I put it back it was perfectly fine. And is easily hidden behind a plant.

  • Polarbear's Pet Shop New! Digital LCD Aquarium Fish Thermometer Water Terrarium Black Free Batteries
  • LCD display
  • Switch between °C and °F
  • Press ''FSW'' for 3 seconds to power off
  • Temperature Range: -50 °C ~ +70°C
  • Cable length: approx. 3 feet
  • Manufacture: Polarbear's Pet Shop
  • Editor's Impressions Of The Polarbear's Pet Shop
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Polarbear's Pet Shop Final Thoughts

"They all were within."

Put them all in the same tank and they read very close to each other. 2 deg, if it was 32, it would be a SOLID block of ice. So this is the extreme end of the high temperature range. He acted aggressively towards it and so I ultimate ended up removing it due to that. You can glue, tape or simply cover the cords in the tank to keep them discreet. I have kept aquariums for about 45 years. The units each had a battery in place and situated for immediate use.

Overall Score
5.0


(1 Points)

9. Superfish Outside Garden Pond Floating Water Thermometer 0-50C

User Ratings: 75 4

Superfish 669005 First Impressions

"Perhaps it's my fault."

You can use the thermometer with or without the plastic suction cup. For the price I'll probably end up putting these in all of my aquariums. They are within a degree or two of other thermometers I've checked to compare them. I needed a solution that was not breakable and these do the trick! Only thing I don't love is how long the cord is. I'm pretty sure those reviewers have acrylic tanks. He acted aggressively towards it and so I ultimate ended up removing it due to that.

  • Superfish Outside Garden Pond Floating Water Thermometer 0-50C
  • Plastic Floating Black Pond Thermometer
  • Helps you keep an eye on your pond temperture
  • Floating with cord to attach to the side of the Pond
  • Temperature Scale 0-50 degrees Celsius (30-120F)
  • Perfect for most ponds, swimming pools and tanks
  • Manufacture: Superfish
  • Product Dimensions: 4.33 x 4.33 x 4.33 inches; 2.82 Ounces
  • Editor's Impressions Of The Superfish 669005
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Superfish 669005 Final Thoughts

"Great little thermometer."

The temperature fluctuated a lot with it. I ordered a new one and it works GREAT! Then is started to give a low reading, and it is not reading the correct temperature. 6 inch long Bala Sharks that are known to be very unruly and boisterous. These things are useful for a lot besides pet husbandry, too. It is my opinion that everyone should have these that are in the Aquarium Hobby. The non-working ones still provide 2 batteries each AND.

Overall Score
4.6


(25 Points)

10. 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
  • Quality
  • Value For Money
  • Affordability

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


(1325 Points)

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