Editor's Choice - Our Favorite BOYU Aquarium Thermometers

1. 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 [star rating='4.4']
  • Quality [star rating='3.8']
  • Value For Money [star rating='3.4']
  • Affordability [star rating='3.7']

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

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

2. Marina ThermoSensor In-Out Thermometer

User Ratings: 47 15

Marina 11196 First Impressions

"1 degree of each other."

Have checked them against the glass thermometers and the accuracy is right on. The non-working ones still provide 2 batteries each AND. I guess these units do not like saltwater. I have mine on my 60 gallon cube marine tank. It is about 6 inches in length and roughly an inch wide. This is my first 5 star review out of many many reviews on Amazon. You can use the thermometer with or without the plastic suction cup.

  • Marina ThermoSensor In-Out Thermometer
  • Provides both inside and outside aquarium temperature readings
  • Accurate, easy-to-read digital display
  • Can be attached anywhere on the aquarium
  • Velcro mount for easy installation; Battery included
  • Contains temperature probe
  • Manufacture: Marina
  • Product Dimensions: 0.75 x 3 x 1.5 inches; 1.44 Ounces
  • Batteries: 2 LR44 batteries required. (included)
  • Editor's Impressions Of The Marina 11196
  • Thermometer Accuracy [star rating='3.8']
  • Quality [star rating='2.9']
  • Value For Money [star rating='3.4']
  • Affordability [star rating='4.6']

Marina 11196 Final Thoughts

"Close enough I reckon!"

So far, they're all doing their job in my four tanks and I am quite content. I removed the batteries of the units I wasn't using right away. So, in those cases, I find it easier to simply replace it. You can not swivle the thermometer to face a certain way. The temperature fluctuated a lot with it. I came here to give this product a positive review. I use a small flashlight if I don't want to brighten the area.

Overall Score
3.7

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

3. BETAZOOER Reptile Digital Thermometer and Hygrometer for Reptiles Terrarium pet Keeping, Digital Ind...

User Ratings: 54 9

BETAZOOER First Impressions

"Very easy to read."

This little wonder allows me to see at a glance that everything is as it should be. I've checked it against two other thermometers that are accurate. I ordered this guy and it was 6 degrees hotter than the digital! In the right situation this magnet thermometer is the best available. It is always where yo last put it and it is very easy to see and read. Instead she sent a new package of two, both of which work. It works equally well on all of them.

  • BETAZOOER Reptile Digital Thermometer and Hygrometer for Reptiles Terrarium pet Keeping, Digital Indoor Outdoor Temperature Gauge and Humidity
  • [Accurate Monitoring]: Our digital thermometer and humidity gauge is precise within ± 1 ℃ temperature and ± 5%rh humidity levels.Accurate measure temperature and humidity in vivariums, hatchers, brooders, propagators, etc.
  • [Two Sensors]: Come with two sensors for temperature & humidity, each sensor in plastic case comes with strong suction cup for mounting the probes.
  • [MAX/MIN Memory]: Recording maximum and minimum temperature and humidity automatically.
  • [3 in 1 Mounting]: -Large strong magnet. - Large spring mounted retractable clip. -Retractable tabletop stand.
  • [Long Warranty]: We will provide 90 Days warranty[100% Refund!] Money Back or Free Exchange Guarantee. Please feel free to contact us at any time. you have nothing to lose! Scroll to the top of the page and press the “Add to Cart” button.
  • Manufacture: Betazooer.Co
  • Editor's Impressions Of The BETAZOOER
  • Thermometer Accuracy [star rating='3.5']
  • Quality [star rating='5']
  • Value For Money [star rating='4.4']
  • Affordability [star rating='3.4']

BETAZOOER Final Thoughts

"Really easy to hook up."

This company is taking the long term view of how to do business right. I just wrote it off as a minor loss. These are the perfect size to be easily read while not being obtrusive. I used these on a number of my aquariums that have discus fish in them. I just wrote it off as a minor loss. This thermometer is spot on accurate. 50 thermometers, reads much easier and no suction cup residue, also looks better.

Overall Score
4.3

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

4. Qooltek Mini Digital Hygrometer Thermometer Indoor Humidity Monitor with Temperature Humidity Gauge ...

User Ratings: 65 6

Qooltek BFBA-0009 First Impressions

"Great little thermometer."

I removed the batteries of the units I wasn't using right away. Works well in my betta tank, but provide a couple hours for it to read temp changes. 6F all six took about three minutes to read between 88. All are pretty accurate within one degree as claimed. When I set up my newest tank I will be getting another one of these. My poor fish was in 86 degrees water for a month. Was going to get a floater until I saw this magnetic one!

  • Qooltek Mini Digital Hygrometer Thermometer Indoor Humidity Monitor with Temperature Humidity Gauge Meter for Cars Incubators and Brooders Climb Pet (Fahrenheit)
  • Mini Digital LCD Thermometer Humidity Temperature.
  • Temperature Range: -40°F ~ 140°F
  • Measuring Humidity Range: 10% RH ~ 95% RH
  • Humidity Accuracy:5% ; Humidity Display Resolution: 1% RH
  • Mini size perfect to use in incubators, brooders, cigar humidors,reptile tank. If you do not like the small temperature display, you can consider the new hygrometer thermometer - ASIN B079JB3YYL
  • Manufacture: Qooltek
  • Part Number: 050-029
  • Material: Metal
  • Item Weight: 0.705 ounces
  • Product Dimensions: 1.18 x 0.59 x 1.97 inches
  • Color: Black
  • Batteries: 2 LR44 batteries required. (included)
  • Power Source: Battery Powered
  • Batteries Included?: Yes
  • Batteries Required?: Yes
  • Editor's Impressions Of The Qooltek BFBA-0009
  • Thermometer Accuracy [star rating='4.9']
  • Quality [star rating='4']
  • Value For Money [star rating='4']
  • Affordability [star rating='4.2']

Qooltek BFBA-0009 Final Thoughts

"Suction cups fail."

And for the price you cant beat it. I have mine on my 60 gallon cube marine tank. This temperature read a perfect 32 degrees. This thermometer is spot on accurate. These things are useful for a lot besides pet husbandry, too. Ordered three of these and they do the job. I'm pretty sure those reviewers have acrylic tanks.

Overall Score
4.3

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

5. SeeZQ 2 Pack Digital Aquarium Thermometer Fish Tank Water Terrarium Temperature …

User Ratings: 55 7

SeeZQ First Impressions

"Appears to be accurate."

The temperature fluctuated a lot with it. I recommend gluing the suction cups in place where needed for long-term installation. 89 I could buy Six Thermometers with Six included batteries. If the digital display starts to get dim, it's time for a new battery. I have mine on my 60 gallon cube marine tank. This company is taking the long term view of how to do business right. All were Close enough for a fish tank and other uses.

  • SeeZQ 2 Pack Digital Aquarium Thermometer Fish Tank Water Terrarium Temperature …
  • Manufacture: SeeZQ
  • Product Dimensions: 3.94 x 3.94 x 7.87 inches; 7.05 Ounces
  • Batteries: 1 LR44 batteries required.
  • Editor's Impressions Of The SeeZQ
  • Thermometer Accuracy [star rating='3.8']
  • Quality [star rating='3.2']
  • Value For Money [star rating='4.5']
  • Affordability [star rating='4.5']

SeeZQ Final Thoughts

"6 tenths of a degree."

I have always had trouble reading the color temp. I have bought many many temperature gauges for my various fish tanks over the years. Since adding one of these, it has been much easier to monitor the temp of my tanks. It worked great and I highly recommend it! 6 in a pack, extra batteries, easy set up, great price. One being a very expensive digital. This company is taking the long term view of how to do business right.

Overall Score
4.0

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

6. UEETEK Aquarium Thermometer Fish Tank Thermometer LCD Digital with Suction Cup for Pond Marine (Blac...

User Ratings: 17 19

UEETEK First Impressions

"It works great."

SIX Digital Thermometers with SIX batteries INCLUDED working so well. So far, they're all doing their job in my four tanks and I am quite content. He was moving slow in the winter and we realized he needed a heater! Now that the chickens are grown, I have one out in the coop as well. My only complaint is that they tend to be a one time use. Since adding one of these, it has been much easier to monitor the temp of my tanks. Was going to get a floater until I saw this magnetic one!

  • UEETEK Aquarium Thermometer Fish Tank Thermometer LCD Digital with Suction Cup for Pond Marine (Black) - 2 Pieces
  • Digital LCD Thermometer for Aquarium Fish Tank Vivarium Reptile Terrarium
  • Ideal for Aquarium or terrarium temperature monitoring.
  • Aquarium Thermometer, Digital Water Thermometer For Fish Tank Aquarium Marine Temperature.
  • -Attach the display unit to the outside of the tank using the suction cups and submerge the probe into the water in the tank.
  • The thermometer is accurate enough to create readings within 0.1 degree
  • Manufacture: UEETEK
  • Product Dimensions: 2.28 x 1.42 x 0.47 inches; 1.76 Ounces
  • Editor's Impressions Of The UEETEK
  • Thermometer Accuracy [star rating='3.4']
  • Quality [star rating='2.6']
  • Value For Money [star rating='3.9']
  • Affordability [star rating='3.3']

UEETEK Final Thoughts

"Works perfect."

I ordered this guy and it was 6 degrees hotter than the digital! I think the people who said the suction cup broke. So far, they're all doing their job in my four tanks and I am quite content. Simple fix, you adjust the thermometer within the suction cup and VIOLA! Still a recommendation for me due to price and accuracy. The temperature fluctuated a lot with it. It is large enough to see without being obtrusive.

Overall Score
3.2

[star rating="3.2"]
(6 Points)

7. 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)

8. Qguai Aquarium Thermometer, C/F Switch LCD Digital Fish Tank Thermometer with Large Clear Screen, Mo...

User Ratings: 70 6

Qguai First Impressions

"Very easy to read."

I have always had trouble reading the color temp. It is about 6 inches in length and roughly an inch wide. It is easy to use and install it'disappears' in your tank it is so unobtrusive. The display can be set to Fahrenheit or Celsius. So much easier than the ones that hang on the inside. So the extra units will always come in handy. The temperature fluctuated a lot with it.

  • Qguai Aquarium Thermometer, C/F Switch LCD Digital Fish Tank Thermometer with Large Clear Screen, Monitor Water Terrarium Temperature, No Messy Wires in Your Saltwater Freshwater and Reef Aquarium.
  • Simple and Sleek Aquarium Thermometer: Digital number display on large clear screen ensures you to read current temperature quickly and accurately without any blind zone. no probe or messy wires in water reduce electronic component aging problem.
  • Accurately monitor water temperature in Fahrenheit or Celsius: Just press “up” or “down” to switch C / F, and this temperature thermometer will display reading from 0C to 70C / 32F - 158F with precision backside temperature probe stick on the fish tank, it is accurate to 0.1.
  • Easy to set up safe zone: This Self-adhensive fish tank thermometer is powered by CR2032 (included), you just need to tear down the film and stick it to the outside of your fish tank. Specially made insulative tape is easy to remove and will not leave any stain on your fish tank.
  • Wide application: Suitable for different water types such as fresh water, tap water, salt water, marine water, can be used as terrarium thermometer to monitor the living temperature for reptile such as lizard, turtle.
  • Our Fish Aquarium Thermometer is backed by 6 Month Warranty. Contact us if you have any problem.
  • Manufacture: Qguai
  • Batteries: 2 Product Specific batteries required. (included)
  • Editor's Impressions Of The Qguai
  • Thermometer Accuracy [star rating='5']
  • Quality [star rating='3.8']
  • Value For Money [star rating='4.1']
  • Affordability [star rating='4']

Qguai Final Thoughts

"Would buy again."

Ordered three of these and they do the job. This temperature read a perfect 32 degrees. Good cheap accurate aquarium thermometer. The display can be set to Fahrenheit or Celsius. I had my heater set at 73-degrees and the thermometers showed 74. However, Lucy at Zacro read this review and emailed me. All were Close enough for a fish tank and other uses.

Overall Score
4.4

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

9. Vacally New Glass Meter Aquarium Fish Tank Water Thermometer Suction Cup Aquarium Glass Thermometer ...

User Ratings: 57

Vacally Aquarium Accessories First Impressions

"Very accurate."

I used these to raise chicks, and in my parrot cages. Now if it falls into a sink full of water, it's not a problem. The suction will never be the same. Now I'm getting back in on a much smaller scale with 3 gallon Acrylic Nano tanks. It is large enough to see without being obtrusive. This is my first 5 star review out of many many reviews on Amazon. Works well in my betta tank, but provide a couple hours for it to read temp changes.

  • Vacally New Glass Meter Aquarium Fish Tank Water Thermometer Suction Cup Aquarium Glass Thermometer Salt Marine
  • ❤Material: glass ❤Test range: 0 ~ 40 ℃ ❤ Size: about 10.5cm ❤Quantity: 1
  • ❤Clearly readable scale tells you to understand the temperature at two degrees Celsius and Fahrenheit.
  • glass thermometer glass globe thermometer standard glass thermometer weather glass thermometer glass oral fever thermometer glass oral thermometer mercury 12 replacement
  • glass thermometer glass candle thermometer glass brew thermometer glass armpit thermometer glass ball thermometer meat thermometer glass decorative glass thermometer glass tube
  • thermometer water glass thermometer long glass thermometer thermometer bulk glass calibrated glass thermometer traditional glass thermometer beer glass thermometer
  • Manufacture: SJHDFI49
  • Product Dimensions: 4.13 x 0.39 x 0.39 inches; 0.6 Ounces
  • Editor's Impressions Of The Vacally Aquarium Accessories
  • Thermometer Accuracy [star rating='4.5']
  • Quality [star rating='3.7']
  • Value For Money [star rating='4.6']
  • Affordability [star rating='4.4']

Vacally Aquarium Accessories Final Thoughts

"Great price."

Ordered three of these and they do the job. It is easy to use and install it'disappears' in your tank it is so unobtrusive. If the digital display starts to get dim, it's time for a new battery. I got the second one as a bonus that I'm now using in my old tank. So this is the extreme end of the high temperature range. 49 thermometer that is 100% accurate. And I just really started to doubt it.

Overall Score
4.6

[star rating="4.6"]
(2 Points)

10. Lomodo 9 Pack Floating Thermometer Aquarium Glass Temperature Gauge with Suction Cup for Fish Tank (...

User Ratings: 37 20

Lomodo First Impressions

"All you need."

Far more accurate than the usual small glass ones or external LCD strips. When I set up my newest tank I will be getting another one of these. This is how you calibrate a thermometer. I got root rot after light leaks and high water temps. I removed the batteries of the units I wasn't using right away. Just BE CAREFUL WHEN ADJUSTING, IT IS GLASS AND WILL BREAK. If the digital display starts to get dim, it's time for a new battery.

  • Lomodo 9 Pack Floating Thermometer Aquarium Glass Temperature Gauge with Suction Cup for Fish Tank (0-40℃/40-100℉)
  • You will get 9 pack floating thermometer, enough for several aquariums
  • Made of clear glass tube and PVC suction cup, good quality and durable, packaged in blister, providing from breaking during transportation
  • Red indicator line let you read the temperature quickly and easily, temperature ranges from 0-40℃/40-100℉
  • Come with suction cup, which can suck the aquariums wall tightly
  • Widely application: you can put it in your pool, pond, fish tank, aquariums, etc
  • Manufacture: Lomodo
  • Product Dimensions: 6.5 x 2.76 x 1.02 inches; 5.93 Ounces
  • Editor's Impressions Of The Lomodo
  • Thermometer Accuracy [star rating='2.8']
  • Quality [star rating='3']
  • Value For Money [star rating='2.9']
  • Affordability [star rating='4.5']

Lomodo Final Thoughts

"Sticks easy."

I was using one of those ubiquitous cheap digital thermometers on Amazon. The suction cups work well anywhere I have placed it it has not Fallen. The units each had a battery in place and situated for immediate use. Just BE CAREFUL WHEN ADJUSTING, IT IS GLASS AND WILL BREAK. I recommend gluing the suction cups in place where needed for long-term installation. And for the price you cant beat it. I tested this in a cup crammed full of ice and some water.

Overall Score
3.5

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

Copyright © 2022 Rob Aquatics — Primer Child WordPress theme by GoDaddy