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. AoE Performance Aquarium Fish Tank Vertical Thermometer

User Ratings: 53 8

AoE Performance AOE THERM2 First Impressions

"Fish and me happy."

I just wrote it off as a minor loss. They are within a degree or two of other thermometers I've checked to compare them. I got root rot after light leaks and high water temps. So the extra units will always come in handy. 82 PER THERMOMETER with battery included. A bit large for anything smaller than 5 gallons, but that's to be expected. And for the price you cant beat it.

  • AoE Performance Aquarium Fish Tank Vertical Thermometer
  • Accurate range is from 18 C to 34 C
  • Temperature range of the aquarium is shown in both Fahrenheit and Celcius
  • Self adhesive backing
  • Manufacture: AoE Performance
  • Editor's Impressions Of The AoE Performance AOE THERM2
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

AoE Performance AOE THERM2 Final Thoughts

"I like this."

One being a very expensive digital. Just BE CAREFUL WHEN ADJUSTING, IT IS GLASS AND WILL BREAK. The temperature fluctuated a lot with it. I've checked it against two other thermometers that are accurate. Was going to get a floater until I saw this magnetic one! Checked with temp gun and the terrarium was on target at 88. I used these to raise chicks, and in my parrot cages.

Overall Score
4.0


(75 Points)

4. 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)

5. Penn-Plax Stainless Steel Thermometer

User Ratings: 52 25

Penn-Plax 54537105 First Impressions

"Only thing the battries."

I don't think they are backlit but for the price they are still nice. I have mine on my 60 gallon cube marine tank. Since it is a mercury thermometer, it is very accurate. One of my aquariums is glass, and the other two are plastic. Personally I do not mind the way it looks in my aquarium. This temperature read a perfect 32 degrees. I find that the temps are accurate, and this product gives added peace of mind.

  • Penn-Plax Stainless Steel Thermometer
  • Penn-Plax is committed to creating and manufacturing innovative pet products
  • Penn Plax is a name that stands for Quality Innovation and Integrity
  • Experience a great line of Pet Products
  • Manufacture: Pro-Motion Distributing - Direct
  • Product Dimensions: 5 x 2 x 4 inches; 0.71 Ounces
  • Editor's Impressions Of The Penn-Plax 54537105
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Penn-Plax 54537105 Final Thoughts

"Fast accurate readings."

Simple fix, you adjust the thermometer within the suction cup and VIOLA! You can use the thermometer with or without the plastic suction cup. One extra battery came with each unit. It is my opinion that everyone should have these that are in the Aquarium Hobby. So the extra units will always come in handy. A battery can last you up to six months, I'd say, but expect more like three. Excellent working for our bearded dragon tank.

Overall Score
3.6


(3 Points)

6. DaToo Aquarium Thermometer Fish Tank Thermometer with Sucker, 1 Yr Warranty

User Ratings: 51

DaToo First Impressions

"THERE'S MORE!"

I got root rot after light leaks and high water temps. So much so that I purchased a second set of 6. Place it on your aquarium and you are good to go. I find that the temps are accurate, and this product gives added peace of mind. Now that the chickens are grown, I have one out in the coop as well. A bit large for anything smaller than 5 gallons, but that's to be expected. The digital display is nice and small as well.

  • DaToo Aquarium Thermometer Fish Tank Thermometer with Sucker, 1 Yr Warranty
  • SIMPLE DESIGN - The DaToo Aquarium Thermometer is an attractive but simple designed unit with no over-complicated controls. The unit itself is blue, and features a clear plastic trim around the edges.
  • WATERPROOF And Wireless - The aquarium thermometer is completely waterproof, you can put it in the fish tank, real-time monitoring of water temperature. Without any cables, make your fish tank look cleaner and increase the playing space of the fish, it will not be bothered by cables.
  • VERY SIMPLE TO OPERATE - Don't need additional instructions. This is the simplest aquarium thermometer on the market with no buttons to operate. Your child can also use it easily!
  • 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.
  • WIDE RANGE - The temperature range is from -58°F to 158°F allowing you to use this aquarium thermometer in the majority of temperature conditions.
  • Manufacture: DaToo
  • Batteries: 1 LR44 batteries required. (included)
  • Editor's Impressions Of The DaToo
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

DaToo Final Thoughts

"2 degrees of each other."

Very accurate, have checked it with other thermometers as well. Then is started to give a low reading, and it is not reading the correct temperature. These digital thermometers are great and there is no guesswork involved. It works equally well on all of them. I guess these units do not like saltwater. I used to have a large hang in the side tank that you couldn't miss. I ordered a new one and it works GREAT!

Overall Score
4.5


(2 Points)

7. Dual Dial Reptile Thermometer Hygrometer Pet Rearing Box Mini Round Shape Gauge for Reptile Tank Liz...

Sheens First Impressions

"Suction cups fail."

I bent it a little bit and when I put it back it was perfectly fine. This is how you calibrate a thermometer. The digital display is nice and small as well. Who knows, whatever it was, it was revolting! These things are useful for a lot besides pet husbandry, too. This is my first 5 star review out of many many reviews on Amazon. It is about 6 inches in length and roughly an inch wide.

  • Dual Dial Reptile Thermometer Hygrometer Pet Rearing Box Mini Round Shape Gauge for Reptile Tank Lizard Tortoise Spider Chameleon
  • Easy to Read---Large dual round dial with accuracy scales, easy to read. Temperature Measuring Range: -30-50°C, Humidity Measuring Range: 0-100%RH. Use different color coded segments for easy reading, blue means cold (humid), green means moderate, red means hot (dry).
  • Compact and Lightweight---The thermometer can be suspended level or placed on the use, can be displayed anywhere in the reptile habitat without getting in the way of your pal’s view.
  • 2 in 1 Design---Monitoring of temperature and humidity is essential in providing any reptile species with the correct environment. Adopt the principle of physical measurement, no maintenance needed, and no battery required.
  • Applicable Scenes---Widely used for lizard, tortoise, spider, chameleon in vivariums, hatchers, brooders, propagators, etc. Also suitable for pet, warehouse, hospital, laboratory, air-conditioned room, etc.
  • Satisfaction Guarantee---We greatly value our customers and want you to be completely satisfied with your purchase. If you aren't happy with your shopping experience or product, we urge you to contact us so we can resolve the issue!
  • Manufacture: Sheens
  • Product Dimensions: 6.1 x 2.95 x 0.59 inches; 2.12 Ounces
  • Editor's Impressions Of The Sheens
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Sheens Final Thoughts

"Working wonderfully!"

All are pretty accurate within one degree as claimed. For the price I'll probably end up putting these in all of my aquariums. I've checked it against two other thermometers that are accurate. I bought these for my dwc reservoirs. So much so that I purchased a second set of 6. All were Close enough for a fish tank and other uses. In the right situation this magnet thermometer is the best available.

Overall Score
3.0


(1 Points)

8. 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)

9. Decdeal TPM10 Aquarium Thermometer Instant Read Digital Fish Tank Water Temperature Measurement Tool...

Decdeal First Impressions

"It works great."

The temperature fluctuated a lot with it. I used these on a number of my aquariums that have discus fish in them. I used these on a number of my aquariums that have discus fish in them. Far more accurate than the usual small glass ones or external LCD strips. You dont HAVE to stick the display onto your tank. When and if we run out of this batch, I'll instantly order another batch. I use a small flashlight if I don't want to brighten the area.

  • Decdeal TPM10 Aquarium Thermometer Instant Read Digital Fish Tank Water Temperature Measurement Tool with Waterproof Probe LED Display Gauge
  • Mini size and very light in weight.
  • Fast reading system achieves an accurate temperature reading within just a few seconds.
  • Ultra-clear screen LCD display showing temperature unit of Celsius.
  • With 1m cable metal sensor, it is perfect for use in refrigerator, aquarium tank, fish tank, pet cage, etc.
  • The metal probe is waterproof, you can just drop it into your fish tank.
  • Manufacture: Decdeal
  • Item Weight: 1.22 ounces
  • Editor's Impressions Of The Decdeal
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Decdeal Final Thoughts

"No complaints."

Was going to get a floater until I saw this magnetic one! One extra battery came with each unit. Now if it falls into a sink full of water, it's not a problem. I bought these for my dwc reservoirs. I have it in both my aquariums now. Sure enough the digital thermometer was way off by 6 degrees! This temperature read a perfect 32 degrees.

Overall Score
4.0


(1 Points)

10. BOYU BT-01 Glass Thermometer for Aquarium

User Ratings: 55 20

BOYU BT-01 First Impressions

"LOVE these thermometers."

One being a very expensive digital. You can use the thermometer with or without the plastic suction cup. So far, they're all doing their job in my four tanks and I am quite content. I have to admit I had two reasons for buying six. So far I've been very thrilled with these. This doesn't bother me as it ws so cheap. However, Lucy at Zacro read this review and emailed me.

  • BOYU BT-01 Glass Thermometer for Aquarium
  • Easy-to-read floating thermometer with suction cups
  • Includes a safety zone indicator
  • Ensures your aquarium is at a proper temperature
  • Celsius or Fahrenheit options
  • Manufacture: Tin Tin Trading Inc.
  • Product Dimensions: 1 x 1 x 4.5 inches; 0.64 Ounces
  • Editor's Impressions Of The BOYU BT-01
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

BOYU BT-01 Final Thoughts

"Very easy to read."

6 in a pack, extra batteries, easy set up, great price. Ambient room temperature measures 72. If the digital display starts to get dim, it's time for a new battery. I've checked it against two other thermometers that are accurate. A bit large for anything smaller than 5 gallons, but that's to be expected. The temperature fluctuated a lot with it. One being a very expensive digital.

Overall Score
3.7


(161 Points)

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