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9 Best Pool Thermometer [Reviewed & Buyer’s Guide]

Swimming is probably one of the best ways to refresh yourself at any time during the day. But is your pool water comfortable enough?

Various thermometers flat item set. Cartoon medical tool for high temperature measurement isolated vector illustration collection. Measuring instruments and indication concept

To be sure about this, you need to find out whether the pool water temperature is ideal for swimming comfortably. So, a good-quality pool thermometer is a must. Note that after you know the pool temperature, you can always adjust it to the right level. 

However, like every other product out there, you will find a ton of options for pool thermometers. As such, choosing a suitable product may seem complicated. 

That’s where we help you out by putting forward this comprehensive list of the 11 best options to consider. Do give it a read. 

Best Pool Thermometers

cute girl with a baseball cap in a swimsuit with a swimming circle holds a thermometer for water on a yellow background.

Whether you're a pool owner or a professional in the industry, this list will provide you with valuable insights to make an informed decision. So, without further ado, here's the list of the 9 best pool thermometers to ensure precise temperature readings and optimal pool enjoyment.

1. Pull Together Floating Pool Thermometer - Best for Accurate Readings

Pull Together offers a range of quality pool accessories, and this thermometer from the brand is among the best you’ll ever find. It rules out all the guesswork with its accurate readings. Notably, it comes with a cute cartoon-shaped top and measures 9.3 inches long.

XY-WQ Floating Pool Thermometer, Large Size Easy Read for...
  • 🏊Includes rope tether to keep the thermometer from...
  • 🏊The pool thermometer liquid ingredients: Water 90.1%;...

Why Did We Like It?

Equipped with a high-precision sensor, this thermometer makes sure the temperature readout is accurate.

It displays the temperature in both Fahrenheit and Celsius and provides a reading range of 10 to 120°F and -10 to 50°C. So, you can easily read the temperature of your spa, bathtub, and swimming pool anytime. 

Plus, a long-lasting tether is built on the thermometer, which allows you to tie it at a point. This prevents it from floating into the cleaning equipment in the pool. 

Furthermore, this thermometer can make swimming more fun-filled for kids as it features a cute cartoon shape design. Thus, your little ones can safely play with it while enjoying themselves in the pool. The added benefit is that it makes for a decorative addition to the pool.

What Could’ve Been Better?

The only problem with this product is that the color of the attached cartoon head may start to fade in a few months. This makes children a little wary of their pool ‘toy’, but this can be dealt with by coloring it with paint that you have at home. 


  • Gives accurate readings
  • Easy to read
  • Doesn’t float into other pool equipment
  • Kids can safely play with it


  • Color fades in a few months

Type: Floating | Temperature Range: -10°C to 50°C | Accuracy: ±1°C | Display Type: Analog | Design: Swan

2. eLander A15-EL - Best for Large Display

Another great solution for maintaining your pool temperature is this thermometer from eLander. It is built with premium-quality materials and comes with efficient features that would impress anyone. Note that the thermometer measures 7.3 inches long and can be used for all spas, pools, and aquariums.

[Large Floating Pool Thermometer] eLander Pro Water...
  • ✔Measures pool and spa water temperature and provide...
  • ✔Large temperature reading display, in Fahrenheit and...

Why Did We Like It?

Most importantly, thermometers must come with clearly legible readings. Considering this, the eLander product is just perfect as it comes with a fairly large display. 

Thus, you can easily figure out the pool temperature within a few seconds. The readings are given in both Celsius and Fahrenheit to facilitate flexibility. 

You will also like the strong and durable build of this thermometer, which is shatter-resistant and can last for years to come. 

What’s more, it can be stored very easily, thanks to a convenient loop in the string attached to it. The string is quite long, which makes the product quite easy to use and carry. Just dip it in the pool water with the string and check its reading. 

What Could’ve Been Better?

If this thermometer is used in pond water, the markings on it might cloud up a bit, making the temperature difficult to read. That said, it is perfectly legible when used in most water systems such as pools, aquariums, and spas. 


  • Large display makes readings clear
  • Easy to use and carry
  • Shatter-resistant
  • Very long-lasting


  • Pond water may cloud the markings

Type: Floating | Temperature Range: -10°C to 50°C | Accuracy: ±1°C | Display Type: Analog | Design: Classic

3. Pentair R141036 - Best for Easy Storage

Next, we’ve picked this superior-quality thermometer from the well-known brand Pentair. With this product, you can easily make your swimming sessions much more enjoyable than before. Note that this thermometer measures 9.3 inches long and comes with a 3-feet long cord.

Pentair R141036 127 Tube Thermometer with ABS Case and...
  • Tube thermometer
  • High-quality pool and spa thermometers help deliver accurate...

Why Did We Like It?

First of all, the cord attached to the thermometer is 3 feet long, which facilitates ease of use. It is also quite strong and hence can be suspended in the pool water safely and comfortably. 

Notably, the readings delivered by this thermometer are always accurate. Thus, it provides essential information regarding the performance of the heating systems of swimming pools. Ultimately, you are able to control the pool temperature more efficiently. 

Furthermore, this thermometer comes in a secure case made of durable ABS material. So, storing it becomes very easy, unlike other products which don’t come in cases. Additionally, the material used to make the thermometer is quite sturdy and shatter-resistant. 

What Could’ve Been Better?

On using the thermometer for the first time, it might float in the water for a few days. So, the reading may not be perfect at that time, but eventually, it sinks on its own and records the correct temperature. Thus, you need to be patient for a few days to get the right reading. 


  • Long cord makes it easy to use
  • Lets you control pool temperature efficiently
  • ABS case makes it easy to store
  • Shatter-resistant material


  • Might float in water for the first few days

Type: Floating | Temperature Range: -10°C to 50°C | Accuracy: ±1°C | Display Type: Analog | Design: Classic

4. GAME 7000

This uniquely designed thermometer from GAME is more appealing than many other models in the market. The performance it delivers is also parred excellence, thanks to its range of beneficial features. Note that this product measures 9 inches long and comes with a derby-duck-shaped top.

GAME 7000 Derby Duck Spa and Pool Thermometer,...
  • LARGE, EASY-TO-READ NUMBERS: This floating temperature gauge...

Why Did We Like It?

You will never have problems reading the temperature with this product, thanks to the large numbers printed on the scale. Such prominent markings are rare to be found, which makes this thermometer one of the most user-friendly products you’ll ever come across. 

What also caught our eye was the iconic derby duck-shaped head attached to it. As such, it adds fun to your swimming sessions and especially appeals a lot to the little ones. Notably, this product is available in other attractive characters such as clownfish, pineapples, and sharks. 

Moreover, it contains a non-toxic liquid, unlike most other products that come with mercury. Lastly, the material is very strong and durable and is perfectly shatter-resistant. 

What Could’ve Been Better?

The tether provided with this product is not as durable as that of other products. So, it may be strained or even partially torn with regular use. If you face such issues, it is best to ask for a replacement from the manufacturer. 


  • Very prominent markings
  • Adds fun to swimming sessions
  • Contains a non-toxic liquid
  • Strong and durable material


  • Tether is not durable enough

Type: Floating | Temperature Range: -10°C to 50°C | Accuracy: ±1°C | Display Type: Analog | Design: Duck

5. Milliard Floating Pool Thermometer

The MILLIARD Pool Thermometer reduces the time and effort required to maintain the pool temperature at the right level. As such, you get to enjoy swimming with your loved ones for a longer time. Performance-wise, we can vouch that this product won’t fail to satisfy you a bit.

Milliard Floating Pool Thermometer Polar Bear, Large Size...
  • Thermometer is 7” tall and reads in both F° and C°
  • Includes rope tether to keep the thermometer from floating...

Why Did We Like It?

Coming with a cute molded polar bear-shaped top, this thermometer upgrades the look of your swimming pool. So, it becomes the perfect decor to add style to your pool, along with providing accurate readings for the pool temperature. 

Also, the strong tether rope provided with the product keeps it anchored as it floats around. This rope is made with durable material that provides a more long-lasting performance than ordinary products. Note that the thermometer tube is entirely above the water while it is floating. 

As for the thermometer, it is built with strong ABS plastic that can render a long service without showing any major problems. Lastly, like all products from MILLIARD, it is manufactured to ensure the comfort and safety of the users.

What Could’ve Been Better?

We noticed that the numbers on the thermometer were smaller than other products. As such, the calibrations became a bit difficult to read sometimes. Also, we felt if the color of the liquid in its tube had been red instead of blue, the reading would have been easier to figure out. 


  • Perfect décor to style your pool
  • Strong tether rope keeps it anchored
  • Renders a long service
  • Ensures the comfort and safety of users


  • Numbers printed are smaller

Type: Floating | Temperature Range: -10°C to 50°C | Accuracy: ±1°C | Display Type: Analog | Design: Polar Bear

6. Blufree Floating Pool Thermometer

This fascinating thermometer from Blufree helps you control the pool temperature like a pro. It facilitates easy measurement of the pool temperature and also makes swimming more fun-filled and exciting. Note that this product measures 8.46 inches long and comes in a cute animal-shaped design.

Blufree Pool Thermometer Floating, Shatter Resistant, Indoor...
  • 【Premium Quality】The pond thermometer is made from...
  • 【Cartoon Design and Multifunctional】This floating pool...

Why Did We Like It?

Firstly, the superior-quality temperature sensor of this product makes sure the reading is accurate. Plus, it floats on the pool surface, so that you can read the temperature effortlessly. Note that it can record temperatures of up to 120°F and 50°C. 

Another great feature of this pool thermometer is its animal cartoon-shaped top. As such, it can be used both as pool décor and as a water toy for the kids. So, swimming sessions will become all the more exciting for your little ones. 

Moreover, the sturdy and shatter-resistant material of this thermometer makes it more long-lasting than many other products. Lastly, it comes with a beneficial 45-day money-back guarantee as well as a 1-year warranty in case you’re facing any issues with it.

What Could’ve Been Better?

The only problem we faced with this product was that the rope tether fixed onto it was weaker than in other thermometers. Hence, it may not last for a long time and is more prone to damage due to regular use, so requesting a replacement will be the best in such cases.


  • Gives highly precise readings
  • Easy to use
  • Can be a great water toy
  • More long-lasting


  • Rope tether is weaker than in other products

Type: Floating | Temperature Range: -10°C to 50°C | Accuracy: ±1°C | Display Type: Analog | Design: Fish

7. Kingsource Floating Pool Thermometer

The next thermometer that we have for you is this versatile product from Kingsource. It gives a precise temperature reading for almost all types of water systems. As such, it helps you maintain the pool temperature more efficiently. Note that this pool thermometer measures 8.9 inches long and comes with a 1-year warranty.

Kingsource Large Floating Pool Thermometer, Water...
  • ✅ EASY TO READ - Large Numbers Reading Display in...
  • ✅ FLOATING -  Lightweight Design Can Float On Water's...

Why Did We Like It?

What we liked the most about this product was its flotation top that could be snapped on and off. As such, we could turn it into a floating thermometer whenever we needed it. You can easily turn this product into a sink thermometer by using a 3-foot rope that comes with an anchor plate. 

Furthermore, there is a durable magnifying lens mounted on the temperature gauge that makes the numbers easy to read. As such, you don’t have to deal with illegible readings as in the case of ordinary products. 

That’s not all; the product comes with a beneficial warranty as well as a money-back guarantee. This is accompanied by excellent customer service, whereby the manufacturer responds to your queries within a very short while.

What Could’ve Been Better?

Sometimes this product might tilt slightly while floating on the pool surface, which may cause a slight difference in reading. However, this happens very rarely and in case it does, just push it slightly to make it straight, and it will remain in position. 


  • Floating-cum-sink thermometer
  • Readings are very clear
  • Easy to use
  • Excellent customer service


  • May tilt slightly while floating

Type: Floating | Temperature Range: -10°C to 50°C | Accuracy: ±1°C | Display Type: Analog | Design: Classic

8. GAME 14030-BB

This digital thermometer from GAME makes temperature measurement easier than ever, thanks to its advanced working mechanism. It is suitable for a variety of water systems, including ponds, bathtubs, spas, and pools. Notably, this product measures 10.25 inches and is powered by solar energy.

GAME 14030-BB Solar Digital Pool & Spa Floating Thermometer,...
  • SOLAR POWERED: The GAME Solar Digital Pool and Spa...
  • LARGE, EASY-TO-READ NUMBERS: This floating temperature gauge...

Why Did We Like It?

With this product at home, you no longer need to strain your eyes to read small temperature markings. That’s because the temperature is recorded digitally and is shown on a fairly large LCD. Thus, the readings are clearly displayed on the screen each time. 

Plus, the use of solar power in this product does away with the need to install batteries. It is this feature that puts it a step ahead of other digital thermometers. For charging it, you just need to keep it under the sun for a short while. 

What’s more, when the product floats, its temperature gauge reaches 5 inches below the water's surface. This makes its temperature readings more accurate, while a durable and high-quality tether stops it from floating into the cleaning equipment inside the pool. 

What Could’ve Been Better?

We found this thermometer to be slightly more expensive than the other products. That said, the higher price is justified to some extent since it delivers accurate readings and lasts for years to come. So, you are sure to get value for your money. 


  • Temperature is recorded digitally
  • Readings are perfectly clear
  • Doesn’t require any battery
  • Gives more accurate readings


  • More expensive than other products

Type: Floating | Temperature Range: -10°C to 50°C | Accuracy: ±1°C | Display Type: Analog | Design: Classic

9. Pull Together Turtle Pool Thermometer

You can also go for this cute Pull Together product which facilitates easy and convenient temperature measurement. You can use it in hot tubs, fish ponds, pools, baby pools, jacuzzies, and even large aquariums. Note that this product is 7.5 inches long and comes with a cute turtle-shaped top.

XY-WQ Floating Pool Thermometer, Large Size Easy Read for...
  • 🏊Includes rope tether to keep the thermometer from...
  • 🏊The pool thermometer liquid ingredients: Water 90.1%;...

Why Did We Like It?

We loved the cute turtle-shaped top of this thermometer, which served as attractive décor for the pool. It can also make swimming sessions more exciting and playful for the little ones, and is perfectly safe for them to handle. 

This product also provides long-lasting performance, thanks to its strong and shatter-resistant material. Plus, a durable rope tether prevents it from floating away and colliding with other pool equipment. Just tie it in a place, and you’re all set to record the temperature.

Moreover, the numbers on the temperature scale are quite easy to read and are displayed in both Celsius and Fahrenheit. Thus, you can determine the pool temperature quite easily. Lastly, the readings are also very accurate.

What Could’ve Been Better?

In some cases, the color of the turtle may fade slightly as a result of regular use. However, if you find that the color has faded drastically, you can request a replacement. That said, the product delivers long-lasting and highly satisfying performance. 


  • Serves as attractive pool décor
  • Makes swimming more playful for kids
  • Tether prevents it from floating away
  • Numbers are easy to read


  • Color of the turtle may fade slightly

Type: Floating | Temperature Range: -10°C to 50°C | Accuracy: ±1°C | Display Type: Analog | Design: Turtle

Best Pool Thermometers Comparison Table

ProductTypeTemperature RangeAccuracyDisplay TypeDesign
Pull Together Floating Pool ThermometerFloating-10°C to 50°C±1°CAnalogSwan
eLander A15-ELFloating-10°C to 50°C±1°CAnalogClassic
Pentair R141036Floating-10°C to 50°C±1°CAnalogClassic
GAME 7000Floating-10°C to 50°C±1°CAnalogDuck
Milliard Floating Pool ThermometerFloating-10°C to 50°C±1°CAnalogPolar Bear
Blufree Floating Pool ThermometerFloating-10°C to 50°C±1°CAnalogFish
Kingsource Floating Pool ThermometerFloating-10°C to 50°C±1°CAnalogClassic
GAME 14030-BBFloating-10°C to 50°C±1°CAnalogClassic
Pull Together Turtle Pool ThermometerFloating-10°C to 50°C±1°CAnalogTurtle

Buying Guide For The Best Pool Thermometer

Purchasing the right thermometer becomes less complicated if you take into account some important factors. First of all, you need to consider a few key features that any pool thermometer comes with. Plus, keeping in mind your needs and preferences is important. So, let’s look at some essential points that you need to remember to make the right choice.

  1. Display

This, of course, is a must to consider when you are buying pool thermometers. The display must be clear enough so that you can read the temperature easily. Average products often come with small markings that are very difficult to read. 

So, you must check the details regarding the display of the product. Note that some products come with backlit displays that help you read the temperature at night as well. In case you don’t have a clear vision, it is better to buy thermometers with larger markings or screens. 

  1. Type

Thermometers are either digital or analog, so you must decide which one will be better for you. Digital products come with sensing probes that transmit the reading to the display. 

As for analog thermometers, they have a thin display made of glass or plastic with mercury or alcohol to show the temperature. Note that digital products are slightly more expensive than analog ones since the accuracy is usually better in the case of the former type. 

  1. Accuracy

Well, the accuracy decides how better you can maintain the pool temperature with the product. Inaccurate readings would make the adjustment imperfect, which will give you warmer or cooler water than you want. 

So, make sure you check the information on the accuracy of some customer reviews while going through the details of a product. Note that the products that we’ve included in our list rank high in terms of accuracy. 

Pool Thermometers FAQ's

  • What types of pool thermometers are available?

    There are several types of pool thermometers available, including floating thermometers, digital thermometers, wireless thermometers, and infrared thermometers. Each type has its own advantages and features, such as ease of use, accuracy, and remote monitoring capabilities.

  • Can pool thermometers be used for other water sources?

    Yes, pool thermometers can be used to measure the temperature of other water sources such as hot tubs, spas, ponds, and even aquariums. However, it’s important to check the temperature range and compatibility of the thermometer with the specific water source.

  • How often should I check the pool water temperature?

    It is recommended to check the pool water temperature regularly, especially during different times of the day and seasons. The frequency can vary depending on factors such as weather conditions, pool usage, and personal preference. Monitoring the temperature regularly helps in adjusting heating or cooling systems and maintaining a comfortable swimming environment.

  • The covered area of the pool water retains heat longer. Also in a canopy you can bring heating. The polycarbonate lid keeps the temperature of the water, but also protects the pond from debris


    Now that we have reached the end of our guide, we hope you’ll easily be able to choose the best pool thermometer. 

    But before we bring down the curtains, let’s take you through our favorites on the list. In our opinion, the eLander A15-EL Pool Thermometer is a high-performing as well as a cost-effective option to go for.

    However, if you don’t mind going for a more reliable and efficient product that’s a tad more expensive, the Pentair R141036 Pool Thermometer will be a great choice. 

    On the other hand, if you are searching for a more attractive product, then the Game 7000 Pool Thermometer will be a perfect option. It comes with a cute derby duck-shaped top that will seem quite appealing to any kid. 

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