Editor's Choice - Our Favorite Fluker's Aquarium Thermometers

1. Fluker's Hermit Headquarters Thermometer & Hydrometer Combo

User Ratings: 55 10

Fluker's BCI012192-X2 First Impressions

"Subtracted from the tank."

Ordered three of these and they do the job. When I set up my newest tank I will be getting another one of these. This thermometer is spot on accurate. So far I've been very thrilled with these. SIX Digital Thermometers with SIX batteries INCLUDED working so well. The suction works for a month at a time- in pool and hot tub circulation. They reviewed the packaging or shipping by saying it arrived broken.

  • Fluker's Hermit Headquarters Thermometer & Hydrometer Combo
  • 2 Pack of Flukers Hermit Headquarters Thermometer & Hydrometer Combo
  • Combination gauge to measure temperature and humidity in crabs enclosure
  • Adhesive back makes attaching to inside of enclosure easy
  • Recommended to use 2 combo meters, one on each end
  • Appropriate extra is 78-82 degrees and humidity between 60-80%
  • Manufacture: Flukers
  • Product Dimensions: 3 x 1 x 2 inches; 0.96 Ounces
  • Editor's Impressions Of The Fluker's BCI012192-X2
  • Thermometer Accuracy [star rating='4.6']
  • Quality [star rating='5']
  • Value For Money [star rating='3.2']
  • Affordability [star rating='4.5']

Fluker's BCI012192-X2 Final Thoughts

"Changed to 5-stars now."

I was using one of those ubiquitous cheap digital thermometers on Amazon. And is easily hidden behind a plant. One extra battery came with each unit. This thermometer is spot on accurate. These things are useful for a lot besides pet husbandry, too. I have this thermometer on all my tanks. This company is taking the long term view of how to do business right.

Overall Score
4.1

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

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 [star rating='4.6']
  • Quality [star rating='4.9']
  • Value For Money [star rating='3']
  • Affordability [star rating='4.4']

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

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

3. Zoo Med Digital Terrarium Thermometer, 3 x 2 x 1"

User Ratings: 72 4

Zoo Med TH24 First Impressions

"A solid five stars."

So versatile, I can read the temperatures literally anywhere. At least in the first 3 months of use. You can not swivle the thermometer to face a certain way. I have this thermometer on all my tanks. For something so cheap, they are working remarkably well. This is my first 5 star review out of many many reviews on Amazon. I recommend gluing the suction cups in place where needed for long-term installation.

  • Zoo Med Digital Terrarium Thermometer, 3 x 2 x 1"
  • External sensor can go in water
  • Fahrenheit and Celsius
  • LCD readout
  • Using suction cups, mount the probe inside the enclosure (wet or dry). Mount the digital display in a dry location outside the enclosure.
  • Press power (pwr) button to turn on. Press and hold power button for 5 seconds to turn off.
  • Slide fahrenheit/celsius switch to desired setting.
  • Uses one LR44, 1.5 v battery (included).
  • Manufacture: Zoo Med Laboratories
  • Item Weight: 1.06 ounces
  • Product Dimensions: 6 x 4 x 2 inches
  • Batteries: 1 LR44 batteries required. (included)
  • Editor's Impressions Of The Zoo Med TH24
  • Thermometer Accuracy [star rating='4.6']
  • Quality [star rating='4.3']
  • Value For Money [star rating='4']
  • Affordability [star rating='5']

Zoo Med TH24 Final Thoughts

"I placed it on the side."

I find that the temps are accurate, and this product gives added peace of mind. So much so that I purchased a second set of 6. Now I'm getting back in on a much smaller scale with 3 gallon Acrylic Nano tanks. This thermometer is spot on accurate. Very accurate, have checked it with other thermometers as well. So this is the extreme end of the high temperature range. When I set up my newest tank I will be getting another one of these.

Overall Score
4.5

[star rating="4.5"]
(1749 Points)

4. Penn-Plax Standing Thermometer

User Ratings: 49

Penn-Plax TS First Impressions

"Which is good."

So the extra units will always come in handy. The suction works for a month at a time- in pool and hot tub circulation. Now if it falls into a sink full of water, it's not a problem. It is large enough to see without being obtrusive. Place it on your aquarium and you are good to go. And I just really started to doubt it. I had my heater set at 73-degrees and the thermometers showed 74.

  • Penn-Plax Standing Thermometer
  • Standing Style Glass Aquarium Thermometer
  • Accurate Easy To Read
  • This Product Is Made In China
  • Package Dimensions: 0.6" L X 3.1" W X 7.4" H
  • Manufacture: Penn Plax, INC.
  • Product Dimensions: 0.6 x 3.1 x 7.4 inches; 0.8 Ounces
  • Editor's Impressions Of The Penn-Plax TS
  • Thermometer Accuracy [star rating='3.7']
  • Quality [star rating='4.1']
  • Value For Money [star rating='4.9']
  • Affordability [star rating='5']

Penn-Plax TS Final Thoughts

"Close enough I reckon!"

I recommend gluing the suction cups in place where needed for long-term installation. A bit large for anything smaller than 5 gallons, but that's to be expected. I use a small flashlight if I don't want to brighten the area. My poor fish was in 86 degrees water for a month. The only reason I didn't give this 5 stars is because my betta fish didn't like it. So this is the extreme end of the high temperature range. Just BE CAREFUL WHEN ADJUSTING, IT IS GLASS AND WILL BREAK.

Overall Score
4.3

[star rating="4.3"]
(13 Points)

5. STEBCECE 9Pcs Brine Shrimp Incubator DIY Aquarium Hatching System Cap Connection Tee Regulator Hose ...

User Ratings: 51 49

STEBCECE First Impressions

"These are great!"

Set all six probes up in a terrarium with a constant temp of 88. All were Close enough for a fish tank and other uses. Good cheap accurate aquarium thermometer. Put them all in the same tank and they read very close to each other. It is always where yo last put it and it is very easy to see and read. In this scenario it would probably get knocked loose a lot. It will make you wonder why nobody thought of it before.

  • STEBCECE 9Pcs Brine Shrimp Incubator DIY Aquarium Hatching System Cap Connection Tee Regulator Hose Check Cultivation Kit for Ornamental Fish
  • ❋Easy to use, convenient to Hatch.
  • ❋Simple, practical, convenient to hatch shrimp for feeding fish.
  • ❋Can be directly into the harvest shrimp eggs, sea salt and water
  • ❋Connect with air p ump, eggs can be hatched within 24 hours .
  • ❋Good for the shrimp egg to feed the ornamental fish larvae.
  • Manufacture: STEBCECE
  • Item Weight: 1.98 Ounces
  • Editor's Impressions Of The STEBCECE
  • Thermometer Accuracy [star rating='2.4']
  • Quality [star rating='3.2']
  • Value For Money [star rating='3.9']
  • Affordability [star rating='2.2']

STEBCECE Final Thoughts

"So we are ordering more."

Water tested with Autidefy brand for two hours. The display can be set to Fahrenheit or Celsius. Then she followed up again on that, asking if they had arrived and were okay. Water tested with Autidefy brand for two hours. I don't think they are backlit but for the price they are still nice. 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.

Overall Score
3.0

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

6. POPETPOP Aquarium Thermometer-Fish Tank Thermometer Hook Practical Universal Accessory Creative Glas...

POPETPOP First Impressions

"This is perfect."

82 PER THERMOMETER with battery included. You can use the thermometer with or without the plastic suction cup. I have it in both my aquariums now. The suction works for a month at a time- in pool and hot tub circulation. Ambient room temperature measures 72. For something so cheap, they are working remarkably well. He acted aggressively towards it and so I ultimate ended up removing it due to that.

  • POPETPOP Aquarium Thermometer-Fish Tank Thermometer Hook Practical Universal Accessory Creative Glass Thermometer with Hook for Aquarium Fish Tank-6MM
  • The maximum temperature is 40 degrees centigrade.
  • Aquarium temperature gauge Hook design for easy install.
  • The thermometer column is very sensitive, will always change according to the temperature.
  • The right water temperature is very important for the health of your fish, a aquarium thermometer is very necessary.
  • Simple to use and convenient to read.
  • Manufacture: POPETPOP
  • Product Dimensions: 5.71 x 0.94 x 0.2 inches; 0.71 Ounces
  • Editor's Impressions Of The POPETPOP
  • Thermometer Accuracy [star rating='3.6']
  • Quality [star rating='2.2']
  • Value For Money [star rating='2.4']
  • Affordability [star rating='2.2']

POPETPOP Final Thoughts

"7 reading."

I think the people who said the suction cup broke. The non-working ones still provide 2 batteries each AND. So far, they're all doing their job in my four tanks and I am quite content. My poor fish was in 86 degrees water for a month. This thermometer is spot on accurate. I have it in both my aquariums now. Sure enough the digital thermometer was way off by 6 degrees!

Overall Score
3.0

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

7. AQUANEAT Aquarium Thermometer Reptile Thermometer Digital Fish Tank Terrarium Water Temperature Test...

User Ratings: 60 7

AQUANEAT DT-A045x10 First Impressions

"I opened the first three."

These digital thermometers are great and there is no guesswork involved. However, Lucy at Zacro read this review and emailed me. The suction works for a month at a time- in pool and hot tub circulation. I ordered this guy and it was 6 degrees hotter than the digital! It is my opinion that everyone should have these that are in the Aquarium Hobby. They reviewed the packaging or shipping by saying it arrived broken. All were Close enough for a fish tank and other uses.

  • AQUANEAT Aquarium Thermometer Reptile Thermometer Digital Fish Tank Terrarium Water Temperature Test with LCD Display 10 PCS
  • Wide Application: Ideal for use in water or high moisture environment like aquarium terrarium, or vivarium, suitable for different water types such as fresh water, tap water, salty water, marine water and etc.
  • Easy to Read: Comes with a large LCD display that is easy to read clearly.
  • Easy to Setup: Submerge probe with suction cup can easily be set in water. (Submerge probe only, do not submerge thermometer in water) Press ''PWR'' for 3 seconds to power off.
  • Free Extra LR44: 2 PCS LR44 button cell for each thermometer (one for operation, one for spare).
  • Wide Temperature Range: Measure -58°F to +158°F (-50°C to +70°C) with accuracy +/- 1°C
  • Manufacture: AQUANEAT
  • Editor's Impressions Of The AQUANEAT DT-A045x10
  • Thermometer Accuracy [star rating='5']
  • Quality [star rating='5']
  • Value For Money [star rating='5']
  • Affordability [star rating='3.3']

AQUANEAT DT-A045x10 Final Thoughts

"Great deal."

I recommend gluing the suction cups in place where needed for long-term installation. And for the price you cant beat it. They reviewed the packaging or shipping by saying it arrived broken. The lid is textured aluminum, and the suction cups don't stick to that. Very impressed, I have now had them in used for a month so far. Instead she sent a new package of two, both of which work. I guess these units do not like saltwater.

Overall Score
4.3

[star rating="4.3"]
(44 Points)

8. uxcell Temperature Gauge Aquarium Thermometer Celsius with Probe for Fish Tank

uxcell First Impressions

"Just received it today."

I used these to raise chicks, and in my parrot cages. The non-working ones still provide 2 batteries each AND. I've checked it against two other thermometers that are accurate. My only complaint is that they tend to be a one time use. We are using them to measure various temperatures inside and outside of a motorhome. It worked great and I highly recommend it! Works well in my betta tank, but provide a couple hours for it to read temp changes.

  • uxcell Temperature Gauge Aquarium Thermometer Celsius with Probe for Fish Tank
  • 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: A19010400ux0393
  • Item Weight: 0.81 ounces
  • Size: 1 Piece
  • Power Source: Battery Powered
  • Batteries Required?: No
  • Editor's Impressions Of The uxcell
  • Thermometer Accuracy [star rating='3.1']
  • Quality [star rating='4']
  • Value For Money [star rating='2']
  • Affordability [star rating='2']

uxcell Final Thoughts

"Great deal."

In the right situation this magnet thermometer is the best available. They reviewed the packaging or shipping by saying it arrived broken. 49 thermometer that is 100% accurate. This temperature read a perfect 32 degrees. So, in those cases, I find it easier to simply replace it. Love it, it's easy to read and keeps an accurate temp. I recommend gluing the suction cups in place where needed for long-term installation.

Overall Score
3.0

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

9. 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 [star rating='3.5']
  • Quality [star rating='3.9']
  • Value For Money [star rating='3.2']
  • Affordability [star rating='3.2']

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

[star rating="3.6"]
(27 Points)

10. RISERPO LCD Digital Aquarium Thermometer for Fish Tank, Marine, Reptiles, Insects, Lizard, Terrarium...

User Ratings: 63 7

RISEPRO TM-4 First Impressions

"So glad i got these!"

So this is the extreme end of the high temperature range. So far, they're all doing their job in my four tanks and I am quite content. I think the people who said the suction cup broke. Was going to get a floater until I saw this magnetic one! The suction works for a month at a time- in pool and hot tub circulation. I just wrote it off as a minor loss. For something so cheap, they are working remarkably well.

  • RISERPO LCD Digital Aquarium Thermometer for Fish Tank, Marine, Reptiles, Insects, Lizard, Terrarium, Bath and etc
  • EASY TO SETUP – RISEPRO® aquarium thermometer can easily be set in minutes. Simple mount main display unit over the tank! And place the sensor probe inside the water!
  • WIDE RANGE & ACCURATE – Measure -58.0 to 158.0 degree Fahrenhit (-50.0 to 70.0 degree Celsius) with accuracy +/- 1 degree Celsius
  • TEMPERAURE UNITS – Easy switch between degree Celsius and Fahrenhit
  • WIDE VARIETY OF AQUARIUM AND WATER TANKS – Suitable for different water types such as fresh water, tap water, salty water, marine water and etc.
  • GREAT FOR REPTILE – Suitable for monitoring the living temperature for reptile such as lizard, turtle etc.
  • LCD display with remote submersible sensor probe
  • Compact design with 2 suction cup mounts
  • Switch between °C and °F
  • Manufacture: RISEPRO
  • Product Dimensions: 2.3 x 0.6 x 1.5 inches; 0.8 Ounces
  • Batteries: 1 Lithium ion batteries required. (included)
  • Editor's Impressions Of The RISEPRO TM-4
  • Thermometer Accuracy [star rating='3.4']
  • Quality [star rating='3.6']
  • Value For Money [star rating='4.2']
  • Affordability [star rating='5']

RISEPRO TM-4 Final Thoughts

"These are great!"

In the right situation this magnet thermometer is the best available. I guess these units do not like saltwater. This thermometer is spot on accurate. Place it on your aquarium and you are good to go. So versatile, I can read the temperatures literally anywhere. I used to have a large hang in the side tank that you couldn't miss. I don't think they are backlit but for the price they are still nice.

Overall Score
4.3

[star rating="4.3"]
(284 Points)

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