Editor's Choice - Our Favorite Propagate Pro Aquarium Thermometers

1. Stick On Thermometer Strip, Digital Temperature Display for Fermenting, Brewing, Wine, Beer, Kombuch...

User Ratings: 75 4

Propagate Pro PPTS1-V First Impressions

"Perfect customer service."

It is always where yo last put it and it is very easy to see and read. It is large enough to see without being obtrusive. Very impressed, I have now had them in used for a month so far. This temperature read a perfect 32 degrees. The extra batteries where very much appreciated and came in handy. He was moving slow in the winter and we realized he needed a heater! I use a small flashlight if I don't want to brighten the area.

  • Stick On Thermometer Strip, Digital Temperature Display for Fermenting, Brewing, Wine, Beer, Kombucha or Aquariums. 50-90F (10-32C) Adhesive Sticker Vertical 5 or 10 Pack (5)
  • 5 or 10 Piece Vertical Set in Resealable Bag - Also in Horizontal Version B07DFW3Z9M
  • Dimensions: 4.75 x 1.0 inch / 120 x 25 mm
  • Measuring range: 10~32 Degree C (50~90 Degree F)
  • Adhesive on the back, just peel off the tape and attach to the outside surface, One time use
  • Color Changing Highly Accurate Temperature Readings
  • Manufacture: Heezy LLC
  • Item Weight: 0.5 ounces
  • Product Dimensions: 4.72 x 1 x 0.1 inches
  • Editor's Impressions Of The Propagate Pro PPTS1-V
  • Thermometer Accuracy [star rating='3.6']
  • Quality [star rating='5']
  • Value For Money [star rating='5']
  • Affordability [star rating='4.5']

Propagate Pro PPTS1-V Final Thoughts

"Great price too."

89 I could buy Six Thermometers with Six included batteries. I was using one of those ubiquitous cheap digital thermometers on Amazon. I bent it a little bit and when I put it back it was perfectly fine. I'm pretty sure those reviewers have acrylic tanks. Excellent working for our bearded dragon tank. Simple fix, you adjust the thermometer within the suction cup and VIOLA! I had my heater set at 73-degrees and the thermometers showed 74.

Overall Score
4.6

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

2. Aquarium Thermometer, Fish Tank Thermometer, Water Thermometer with LCD Display Fahrenheit/Celsius(...

User Ratings: 67 3

AikTryee First Impressions

"2 deg of 32."

It is large enough to see without being obtrusive. So much so that I purchased a second set of 6. It started working as soon as I put it in and has been working ever since. I used these to raise chicks, and in my parrot cages. Was going to get a floater until I saw this magnetic one! Place it on your aquarium and you are good to go. We are using them to measure various temperatures inside and outside of a motorhome.

  • Aquarium Thermometer, Fish Tank Thermometer, Water Thermometer with LCD Display Fahrenheit/Celsius(℉/℃) for Vehicle Reptile Terrarium Fish Tank Refrigerator by AikTryee
  • 【PRODUCT MATERIAL】Aquarium Thermometer uses a high-precision stainless steel sensor probe to measure the water temperature of the aquarium. The main unit uses a professional LCD display to solve the problem of not knowing the temperature of the fish tank, thus providing a healthy and comfortable water environment for all kinds of fish.
  • 【WIDE TEMPERATURE TEST】Fish Tank Thermometer Temperature Range -58 ℉ ~ +500℉; Temperature measurement accuracy: ±1℉; It can be used in temperature sensing of many types of liquids, making your temperature measurement so simple.
  • 【LONG BATTERY LIFE】Water Thermometer Powered by Two LR44 Button Cell (Included), Battery Working Time up to 8 Months.
  • 【LARGE SCREEN DISPLAY】Digital Aquarium Thermometer with a Large Screen 1.6 inch LCD Display, Easy to Read Temperature for Children or Older People, Real-time monitoring of changes in water temperature.
  • 【Package Includes】Aquarium Thermometer 1 x Digital Aquarium Thermometer, 2 x Suction cup mounts, 1 x User manual, LR44 battery included.
  • Manufacture: AikTryee
  • Product Dimensions: 2.28 x 1.4 x 0.47 inches; 1.31 Ounces
  • Batteries: 1 LR44 batteries required. (included)
  • Editor's Impressions Of The AikTryee
  • Thermometer Accuracy [star rating='3.9']
  • Quality [star rating='3.9']
  • Value For Money [star rating='3.5']
  • Affordability [star rating='3.9']

AikTryee Final Thoughts

"Disappointed."

Very impressed, I have now had them in used for a month so far. They reviewed the packaging or shipping by saying it arrived broken. The suction works for a month at a time- in pool and hot tub circulation. 6 inch long Bala Sharks that are known to be very unruly and boisterous. The plastic from the suction cup quickly turned from a clear to a milky white. The lid is textured aluminum, and the suction cups don't stick to that. This temperature read a perfect 32 degrees.

Overall Score
4.4

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

3. Yinuoday LCD Aquarium Thermometer Digital Fish Tank Magnetic Thermometer with Accurate Temperature S...

Yinuoday 1165893-348-1756032522 First Impressions

"I AM SO HAPPY."

It's kind of difficult to hide and keep out of the way. I'm pretty sure those reviewers have acrylic tanks. In the right situation this magnet thermometer is the best available. He was moving slow in the winter and we realized he needed a heater! This doesn't bother me as it ws so cheap. And I just really started to doubt it. The non-working ones still provide 2 batteries each AND.

  • Yinuoday LCD Aquarium Thermometer Digital Fish Tank Magnetic Thermometer with Accurate Temperature Sensor Monitor Water Temperature,Aquarium Accessory
  • 【Aquarium thermometer】: High transparent Crystal glass shell design, super 3D perspective effect, Exquisite small, convenient and simple to use.
  • 【Accurate Temperature】: Precise chip, High sensitive electronic sensors to measure temperature, accuracy up to 0.1℃.
  • 【Size】: 7x2cm (LxW); Measuring range: -45℃— 85℃; Accuracy: ± 0.1℃; Powered by button batteries (included)
  • 【Install】: The thermometer is attached to the outside of the glass wall of the fish tank. You can accurately measure the temperature in the fish tank.
  • 【100% Guarantee】: If you are unsatisfied with receiving theAquarium thermometer, we offer a 30 day money back guarantee. If you are not satisfied for any reason you can return the Aquarium thermometer for a full refund.
  • Manufacture: Yinuoday
  • Item Weight: 1.06 ounces
  • Product Dimensions: 3.15 x 1.18 x 1.18 inches
  • Editor's Impressions Of The Yinuoday 1165893-348-1756032522
  • Thermometer Accuracy [star rating='5']
  • Quality [star rating='5']
  • Value For Money [star rating='5']
  • Affordability [star rating='4.2']

Yinuoday 1165893-348-1756032522 Final Thoughts

"Hope this helps!"

It started working as soon as I put it in and has been working ever since. These digital thermometers are great and there is no guesswork involved. I was using one of those ubiquitous cheap digital thermometers on Amazon. It is always where yo last put it and it is very easy to see and read. I have it in both my aquariums now. For something so cheap, they are working remarkably well. I came here to give this product a positive review.

Overall Score
5.0

[star rating="5"]
(1 Points)

4. Smarttemp Thermometer

User Ratings: 75 10

JW Pet BC209450 First Impressions

"Close enough I reckon!"

You can use the thermometer with or without the plastic suction cup. I ordered a new one and it works GREAT! Ordered three of these and they do the job. 82 PER THERMOMETER with battery included. I ordered this guy and it was 6 degrees hotter than the digital! The only reason I didn't give this 5 stars is because my betta fish didn't like it. These things are useful for a lot besides pet husbandry, too.

  • Smarttemp Thermometer
  • Stays in place with a unique magnetic fastening system.
  • Smarttemp Thermometer
  • All items are brand new, never worn and never used. We guarantee the authenticity of all items.
  • Manufacture: JW - Dog/Cat/Aquatic
  • Product Dimensions: 7 x 4 x 0.6 inches; 0.8 Ounces
  • Editor's Impressions Of The JW Pet BC209450
  • Thermometer Accuracy [star rating='3.5']
  • Quality [star rating='3.8']
  • Value For Money [star rating='4.7']
  • Affordability [star rating='4.7']

JW Pet BC209450 Final Thoughts

"Only thing the battries."

Since it is a mercury thermometer, it is very accurate. It is about 6 inches in length and roughly an inch wide. It is large enough to see without being obtrusive. It works equally well on all of them. Far more accurate than the usual small glass ones or external LCD strips. Now if it falls into a sink full of water, it's not a problem. Ordered three of these and they do the job.

Overall Score
4.4

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

5. CAMWAY 2pcs Aquarium Thermometer Fish Tank Temperature Hygrometer Thermometer

User Ratings: 46 16

CAMWAY First Impressions

"No issues."

I had my heater set at 73-degrees and the thermometers showed 74. This little wonder allows me to see at a glance that everything is as it should be. I use a small flashlight if I don't want to brighten the area. You dont HAVE to stick the display onto your tank. Personally I do not mind the way it looks in my aquarium. I got root rot after light leaks and high water temps. A battery can last you up to six months, I'd say, but expect more like three.

  • CAMWAY 2pcs Aquarium Thermometer Fish Tank Temperature Hygrometer Thermometer
  • 2-Pack Aquarium Thermometer can show temperature, humidity and time.
  • You can choose seither Fahrenheit or Celsius according to your need.
  • Temperature range -50 degree Celsius ~+ 70 degree Celsius,This aquarium thermometer is accurate to +/- 1℃.
  • 12-hour / 24-hour format and alarm clock function.The Large LCD display unit is easy to read,Small volume, large function.
  • Submerge probe into fish tank to measure water temperature.
  • Equipped With a 1.5M Probe Cable,Submerge Probe Into Fish Tank to Measure Water Temperature. It’s More Convenient for Detecting.
  • 2 x Aquarium Thermometers
  • 2 x Batteries
  • Manufacture: CAMWAY
  • Batteries: 2 AAA batteries required. (included)
  • Editor's Impressions Of The CAMWAY
  • Thermometer Accuracy [star rating='3.8']
  • Quality [star rating='3.8']
  • Value For Money [star rating='4.6']
  • Affordability [star rating='3.5']

CAMWAY Final Thoughts

"Easy set up."

In this scenario it would probably get knocked loose a lot. The suction will never be the same. I recommend gluing the suction cups in place where needed for long-term installation. This is my first 5 star review out of many many reviews on Amazon. Since adding one of these, it has been much easier to monitor the temp of my tanks. The extra batteries where very much appreciated and came in handy. They are within a degree or two of other thermometers I've checked to compare them.

Overall Score
3.7

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

6. American Thermal Liquid Crystal Aquarium Thermometer Vertical Small

User Ratings: 72 7

Amer Thermal Instruments BC002021 First Impressions

"Perhaps it's my fault."

I have to admit I had two reasons for buying six. It is always where yo last put it and it is very easy to see and read. The units each had a battery in place and situated for immediate use. These things are useful for a lot besides pet husbandry, too. This thermometer is spot on accurate. The units each had a battery in place and situated for immediate use. 6 in a pack, extra batteries, easy set up, great price.

  • American Thermal Liquid Crystal Aquarium Thermometer Vertical Small
  • Know your aquarium's temperature at a glance
  • Easy-to-read and accurate thermometer mounts on outside of your aquarium
  • Unbreakable, non-corrosive, and non-toxic
  • Fahrenheit scale
  • Manufacture: Amer Thermal Instruments
  • Editor's Impressions Of The Amer Thermal Instruments BC002021
  • Thermometer Accuracy [star rating='4.3']
  • Quality [star rating='3.7']
  • Value For Money [star rating='4.6']
  • Affordability [star rating='3.5']

Amer Thermal Instruments BC002021 Final Thoughts

"Which is good."

You can glue, tape or simply cover the cords in the tank to keep them discreet. The suction cups work well anywhere I have placed it it has not Fallen. Simple fix, you adjust the thermometer within the suction cup and VIOLA! The digital display itself is easy to read at a glance. I can't say which is the most accurate and don't really care. In the right situation this magnet thermometer is the best available. So versatile, I can read the temperatures literally anywhere.

Overall Score
4.4

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

7. Aquarium Thermometer, Digital Fish Tank Thermometer with Large LCD Display Touch Screen, Stick-on Ta...

User Ratings: 75 4

capetsma First Impressions

"They are within 0."

I have always had trouble reading the color temp. These digital thermometers are great and there is no guesswork involved. Sure enough the digital thermometer was way off by 6 degrees! Good cheap accurate aquarium thermometer. Was going to get a floater until I saw this magnetic one! It will make you wonder why nobody thought of it before. You can not swivle the thermometer to face a certain way.

  • Aquarium Thermometer, Digital Fish Tank Thermometer with Large LCD Display Touch Screen, Stick-on Tank Temperature Sensor Ensures Accurate Reading for Aquarium Terrarium Amphibians & Reptiles
  • Cordless & Touch Screen Design : no probes or messy wires in water and backside temperature sensor stick on the outside glass of the fish tank prevent water infiltration and electronic Oxidation, Large Crystal Touch Screen makes it easier to read the temperature far away, stands out among other aquarium thermometers.
  • Large numbers on 3.2" Large Transparent Screen : 3.2" large glass screen is larger than most of the thermometers, large temperature display on transparent screen, will not block your view.
  • Accurate Display : With an accurate temperature sensor stick on the surface of the fish tank, this Digital aquarium thermometer will display temperature for fish tank, reading from 0°C to 70°C / 32°F - 158°F, accurate to 0.1°
  • Easy to Operate : pull down the black battery cover below the screen, insert the battery, close it, stick and read the tank temperature. Press "up" or "down" to switch °C / °F
  • Widely used : Suitable For Different Water Types Such As Fresh Water, Tap Water, Salty Water, Marine Water And Monitors The Living Temperature For Reptile Such As Lizard, Turtle.Also, it can be used for DIY Brew Beer and wine barrel, Terrarium, Greenhouse, Vivarium and any sort of pet tank thermometer.
  • Manufacture: capetsma
  • Product Dimensions: 2.99 x 0.28 x 2.99 inches; 3.21 Ounces
  • Batteries: 2 CR2 batteries required. (included)
  • Editor's Impressions Of The capetsma
  • Thermometer Accuracy [star rating='5']
  • Quality [star rating='4.8']
  • Value For Money [star rating='5']
  • Affordability [star rating='5']

capetsma Final Thoughts

"These are great!"

So, in those cases, I find it easier to simply replace it. I was using one of those ubiquitous cheap digital thermometers on Amazon. Ambient room temperature measures 72. I guess these units do not like saltwater. The extra batteries where very much appreciated and came in handy. I have it in both my aquariums now. I was using one of those ubiquitous cheap digital thermometers on Amazon.

Overall Score
4.5

[star rating="4.5"]
(1678 Points)

8. 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 [star rating='4.1']
  • Quality [star rating='4.2']
  • Value For Money [star rating='4.8']
  • Affordability [star rating='4.8']

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

[star rating="4.2"]
(21 Points)

9. Water & Wood Aquarium Fishbowl Dual Scale Thermometer Sticker Strip 2 in 1

User Ratings: 48

Waterwood First Impressions

"Not just for aquariums!"

And for the price you cant beat it. The display can be set to Fahrenheit or Celsius. 2 deg, if it was 32, it would be a SOLID block of ice. It will make you wonder why nobody thought of it before. When I set up my newest tank I will be getting another one of these. I bought these for my dwc reservoirs. I don't think i'll ever be able to trust a digital thermometer again.

  • Water & Wood Aquarium Fishbowl Dual Scale Thermometer Sticker Strip 2 in 1
  • Aquarium Fishbowl Dual Scale Thermometer Sticker Strip 2 in 1
  • New product with high quality
  • Manufacture: Water & Wood
  • Editor's Impressions Of The Waterwood
  • Thermometer Accuracy [star rating='3.9']
  • Quality [star rating='4.7']
  • Value For Money [star rating='3.2']
  • Affordability [star rating='4.5']

Waterwood Final Thoughts

"Which is good."

I got the second one as a bonus that I'm now using in my old tank. I'm pretty sure those reviewers have acrylic tanks. It works equally well on all of them. SIX Digital Thermometers with SIX batteries INCLUDED working so well. 49 thermometer that is 100% accurate. For the price I'll probably end up putting these in all of my aquariums. I can't say which is the most accurate and don't really care.

Overall Score
4.0

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

10. Penn-Plax DT014 Digital Thermometer Small Strip, 2" | Great for Checking The Water Temperature in Sm...

User Ratings: 58 32

Pen Plax DT014 First Impressions

"I opened the first three."

It is my opinion that everyone should have these that are in the Aquarium Hobby. Only thing I don't love is how long the cord is. Ordered three of these and they do the job. Good cheap accurate aquarium thermometer. Very accurate, have checked it with other thermometers as well. My 50+ eyes cannot read a regular tank thermometer without squinting. In the right situation this magnet thermometer is the best available.

  • Penn-Plax DT014 Digital Thermometer Small Strip, 2" | Great for Checking The Water Temperature in Smaller Tanks
  • Great 2" strip thermometor for smaller tanks.
  • Easy to attach to tank and easy to read for safe conditions.
  • SHOP PENN-PLAX FOR ALL YOUR PET’S NEEDS: Penn-Plax is a manufacturer and distributer of top quality pet supplies, who specialize in creating excellent pet products for animals, both great and small.
  • Manufacture: Pann-Plax
  • Product Dimensions: 5 x 9 x 6 inches; 0.32 Ounces
  • Editor's Impressions Of The Pen Plax DT014
  • Thermometer Accuracy [star rating='4.3']
  • Quality [star rating='4']
  • Value For Money [star rating='3.9']
  • Affordability [star rating='3.8']

Pen Plax DT014 Final Thoughts

"Exactly what I needed."

6F all six took about three minutes to read between 88. Bought the two pack of thermometers. I'm pretty sure those reviewers have acrylic tanks. I used to have a large hang in the side tank that you couldn't miss. 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. This thermometer is spot on accurate.

Overall Score
3.4

[star rating="3.4"]
(10 Points)

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