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. 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
  • Quality
  • Value For Money
  • Affordability

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


(4 Points)

4. IDS Digital Dual Scale Aquarium Fish Tank Thermometer Temperature Sticker

User Ratings: 61

IDS First Impressions

"Love it for my turtles."

I recommend gluing the suction cups in place where needed for long-term installation. The lid is textured aluminum, and the suction cups don't stick to that. In the right situation this magnet thermometer is the best available. I have always had trouble reading the color temp. Put them all in the same tank and they read very close to each other. I have mine on my 60 gallon cube marine tank. This thermometer is spot on accurate.

  • IDS Digital Dual Scale Aquarium Fish Tank Thermometer Temperature Sticker
  • Easy to install, just peel off the back of the sticker and the transparent protective film at the front and stick it on the outside wall of the aquarium, that is it.
  • Qty: 1 pc.
  • Place on the tank glass outside the aquarium tank Suitable for cold water, tropical and marine aquarium.
  • Size:10cm x 2cm - 3.94inch x 0.79inch.
  • Manufacture: IDS
  • Editor's Impressions Of The IDS
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

IDS Final Thoughts

"No complaints."

So versatile, I can read the temperatures literally anywhere. I can't say which is the most accurate and don't really care. Then is started to give a low reading, and it is not reading the correct temperature. A bit large for anything smaller than 5 gallons, but that's to be expected. These things are useful for a lot besides pet husbandry, too. A battery can last you up to six months, I'd say, but expect more like three. We are using them to measure various temperatures inside and outside of a motorhome.

Overall Score
4.2


(21 Points)

5. UPLY Aquarium Thermometer Digital Fish Tank Thermometer for Water Temperature

User Ratings: 53 18

UPLY First Impressions

"Easy to setup in tank."

Ambient room temperature measures 72. Still a recommendation for me due to price and accuracy. I ordered a new one and it works GREAT! I tested this in a cup crammed full of ice and some water. I think the people who said the suction cup broke. Since it is a mercury thermometer, it is very accurate. Very accurate, have checked it with other thermometers as well.

  • UPLY Aquarium Thermometer Digital Fish Tank Thermometer for Water Temperature
  • 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
  • Product Dimensions: 1.97 x 5.12 x 1.18 inches; 1.98 Ounces
  • Batteries: 1 LR44 batteries required. (included)
  • Editor's Impressions Of The UPLY
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

UPLY Final Thoughts

"Just received it today."

I have this thermometer on all my tanks. You can glue, tape or simply cover the cords in the tank to keep them discreet. 82 PER THERMOMETER with battery included. The extra batteries where very much appreciated and came in handy. Very accurate, have checked it with other thermometers as well. Love it, it's easy to read and keeps an accurate temp. 6 in a pack, extra batteries, easy set up, great price.

Overall Score
3.6


(27 Points)

6. JW Pet Company Smarttemp Thermometer Aquarium Accessory

User Ratings: 72 6

JW Pet 21600 First Impressions

"Working wonderfully!"

These digital thermometers are great and there is no guesswork involved. So the extra units will always come in handy. Since it is a mercury thermometer, it is very accurate. I did have a problem with one in my first pack of 6. I have mine on my 60 gallon cube marine tank. Only thing I don't love is how long the cord is. When and if we run out of this batch, I'll instantly order another batch.

  • JW Pet Company Smarttemp Thermometer Aquarium Accessory
  • In-tank thermometer is secured with magnet outside the tank
  • No suction cups needed
  • Green safe zone indicates optimal temperature range
  • Large easy to read numbers
  • Manufacture: JW Pet Company
  • Product Dimensions: 4 x 7 x 0.5 inches; 1.12 Ounces
  • Editor's Impressions Of The JW Pet 21600
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

JW Pet 21600 Final Thoughts

"I like this."

I used these on a number of my aquariums that have discus fish in them. It works equally well on all of them. Very impressed, I have now had them in used for a month so far. So far, they're all doing their job in my four tanks and I am quite content. So this is the extreme end of the high temperature range. I have to admit I had two reasons for buying six. The extra batteries where very much appreciated and came in handy.

Overall Score
4.5


(1488 Points)

7. 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
  • Quality
  • Value For Money
  • Affordability

Zoo Med TH26 Final Thoughts

"Works perfect."

I don't think they are backlit but for the price they are still nice. The digital display is nice and small as well. I got root rot after light leaks and high water temps. I have it in both my aquariums now. 89 I could buy Six Thermometers with Six included batteries. When and if we run out of this batch, I'll instantly order another batch. One extra battery came with each unit.

Overall Score
3.3


(45 Points)

8. 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)

9. Coralife 00232 Digital Thermometer

User Ratings: 50 10

Coralife 100105032 First Impressions

"Great price."

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. The non-working ones still provide 2 batteries each AND. I used these on a number of my aquariums that have discus fish in them. I've checked it against two other thermometers that are accurate. Excellent working for our bearded dragon tank. If the digital display starts to get dim, it's time for a new battery.

  • Coralife 00232 Digital Thermometer
  • Attaches to aquarium via small suction cup
  • 3 foot long temperature probe for large size aquariums
  • Battery included
  • Ideal for aquariums and terrariums
  • Readings to 0.1-degrees Fahrenheit or Celsius
  • Manufacture: Central Garden & Pet
  • Product Dimensions: 6.3 x 0.4 x 1.9 inches; 1.6 Ounces
  • Editor's Impressions Of The Coralife 100105032
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Coralife 100105032 Final Thoughts

"I like these."

I removed the batteries of the units I wasn't using right away. Bought the two pack of thermometers. Good cheap accurate aquarium thermometer. The plastic from the suction cup quickly turned from a clear to a milky white. It is always where yo last put it and it is very easy to see and read. The non-working ones still provide 2 batteries each AND. All are pretty accurate within one degree as claimed.

Overall Score
3.8


(230 Points)

10. Marina Deluxe Floating Thermometer with Suction Cup

User Ratings: 69 7

Marina 11204 First Impressions

"THERE'S MORE!"

Was going to get a floater until I saw this magnetic one! 82 PER THERMOMETER with battery included. If the digital display starts to get dim, it's time for a new battery. And is easily hidden behind a plant. So far, they're all doing their job in my four tanks and I am quite content. I tested this in a cup crammed full of ice and some water. Sure enough the digital thermometer was way off by 6 degrees!

  • Marina Deluxe Floating Thermometer with Suction Cup
  • Easy-to-read floating thermometer
  • Includes a safety zone indicator
  • Equipped with suction cups
  • Ensures your aquarium is at a proper temperature
  • Temperature range of 30 to 120 degrees Fahrenheit
  • Manufacture: Marina
  • Product Dimensions: 0.5 x 3.8 x 4.3 inches; 0.18 Ounces
  • Editor's Impressions Of The Marina 11204
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Marina 11204 Final Thoughts

"The hotter, the faster."

I've checked it against two other thermometers that are accurate. Love it, it's easy to read and keeps an accurate temp. A bit large for anything smaller than 5 gallons, but that's to be expected. A battery can last you up to six months, I'd say, but expect more like three. I have to admit I had two reasons for buying six. However, Lucy at Zacro read this review and emailed me. A battery can last you up to six months, I'd say, but expect more like three.

Overall Score
4.4


(649 Points)

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