Best pool thermometer

The temperature in a swimming pool is an important consideration. Likely, most swimmers will not know what the temperature reading is; and from time to time, there is a need for water temperature regulation for swimming pools.

Do you know about the finger test? Most swimmers are unaware of temperature readings. Instead, they gently dip their toes into the pool water to determine whether to swim.

It may even interest you to track your pool water temperature if you require a bit more accurate information than this. In this review, we currently discuss the best pool thermometer on the market.

Top 3 best pool thermometer recommendations

eLander Pro Water Pool Thermometer

I rated the eLander Pro Water Thermometers as the best value overall on our list. It can read up to 120 Fahrenheit and 50 Celsius. You will see these readings on the display reading the temperature in both Fahrenheit and Celsius.

Since this is an analog thermometer, you should expect it to take a few minutes to get a correct reading after you place it in your pool. The floating pool thermometer is made of durable material.

The holes in the thermometer are placed so that the thermometer is filled with water, submerged by itself, and remains floating in an upright position.

With a floating pool thermometer, you can measure the temperature of the water in the pool and spa, indoor and outdoor pools, hot tubs, aquariums, and fish ponds

  • Easy to use
  • Large display
  • Has readings in Fahrenheit and Celsius.
  • Easy to store
  • Sometimes, the rope breaks
  • Measurement error 2 degrees
  • The numbers are not very large

SplashTech Pocket Reservoir Pool Thermometer

SplashTech Pocket Reservoir Pool Thermometer is an alcohol-based pool thermometer of solid size. It is 9.5 inches long and 1.5 inches wide—large bright white numbers.

This all makes it easy to pick up and read, and sinks like a stone, providing better readings than surface pool thermometers. You need to pull the thermometer out of the pool to see the reading. If you don’t want to dive to the bottom of the pool to take readings, tie it to the pool ladder or floating device!

Dual display. Shows temperature in Fahrenheit and Celsius. Maximum temperature reading: 120F, 50C

The SplashTech Pocket Pool Thermometer is an indispensable tool for maintaining your pool to maintain the safest and most comfortable temperature in your pool with maximum accuracy. This floating thermometer features a classic, functional design. No frills.

  • Large display
  • Easy-to-read temperature display
  • Includes large built-in pocket
  • Heavy-duty construction
  • No batteries needed
  • Attachment rope included
  • There is an error in measurements
  • You need to measure the readings manually

GAME 14030-BB Solar Digital thermometer Floating

Solar Digital Pool Floating Thermometer from GAME. It runs solar-powered, which means there is no need to buy batteries. This floating pool thermometer uses the green energy of the sun and is constantly charged.

The floating pool thermometer is equipped with a double-sided LCD screen located at an angle. The numbers on the LCD display are large and easy to read.

With a dedicated button, you can switch the temperature display to both Fahrenheit and Celsius. A unique strap is included in the kit to prevent the floating pool thermometer from getting into the pool equipment.

  • Dual display with large numbers
  • Works even on cloudy days
  • Excellent accuracy
  • Strong and durable lace
  • May fog up

GAME 14900-6PDQ-E-01 Floating Digital Pool Thermometer

The GAME 14900-6PDQ-E-01 Floating Digital Pool Thermometer is a battery-operated, waterproof construction. This floating pool thermometer is equipped with two LCD displays.

A long strap is included so that you can quickly get the floating pool thermometer out of the water. It will also keep him out of skimmers or other pool equipment.

The numbers are large, which is very convenient for reading and allows you not to pull the thermometer out of the water to find out the temperature.

This model dives to a depth of 5 inches, which allows for more accurate water temperature measurements. Can use like spa thermometer. Suitable for outdoor, indoor pools, hot tubs.

  • Easy-to-read LCD display
  • Longline attached
  • Waterproof design
  • Batteries need to be replaced from time to time

Swimline 9250 HydroTools Solar Powered Digital Pool and Spa Thermometer

The Swimline Solar floating Thermometers are hybrid pool thermometers. It is solar-powered and also has a battery compartment. In my opinion, it is one of the best digital pool thermometer.

Digital thermometer equipped with an LCD display that shows the temperature. This solar pool thermometer gives the result in seconds. Comes with a nylon cord. It can be easily attached to your swimming pool ladder or anywhere else. Shows the temperature in Fahrenheit and Celsius. For this, there is a special button on the case.

You can use a pool thermometer very easily just by submerging it in water. This option is ideal for a quality product that does not require special attention when measuring heat.

  • Powered by solar energy
  • Simple design
  • Large display
  • Can work with batteries
  • Disables automatically

Inkbird IBS-P01R Wireless Pool Thermometer Floating Easy Read

 The best swimming pool thermometer and best floating pool thermometer is not just any thermometer; it is the Inkbird IBS-P01R thermometer designed to wow you and offer you the best quality when it comes to temperatures for your pool. 

If you have no desire to go to the pool to measure and see the temperature, the Inkbird IBS-P01R digital floating pool thermometer is what you were looking for.

This floating pool thermometer is equipped with a wireless receiver. It just needs to be positioned 300 feet from the pool. Temperatures are indicated in degrees both Fahrenheit and Celsius. Wireless remote sensor maximum temperature reading: -40 ℃ ~ 70 ℃ (-40 ℉ ~ 158 ℉).

The high-quality materials of this thermometer will last many seasons without the need for replacement. The model is made of waterproof material and can be used for swimming pools, spas, aquariums, hot tubs, fish ponds.

  • Accurate indicators
  • Large temperature range
  • You can find out the temperature from home
  • Durable and waterproof
  • The display console must be inside
  • Interference affects communication between the console and the reader

Kingsource Pool Thermometer Large Floating Water Temperature

This analog thermometer sets itself apart from other thermometers for its fun look. The thermometer is of good quality, made of durable material. The swimming pool thermometer is made in a cartoon style. The human-shaped top adds fun and decor to your pool.

The scale can show both Fahrenheit and Celsius at the same time. There is a nylon cord included. It is needed to fix the thermometer in your pool, and it does not get into the skimmer or other equipment. Suitable for various occasions, indoor and outdoor pools, spa, jacuzzi, aquarium, and fish pond.

  • Cheerful design
  • No batteries needed
  • Includes rope for fastening
  • There is a measurement error
  • You need to measure the reading manually
  • Sometimes defective

Milliard Floating Pool Thermometer Turtle

Milliard Pool Thermometer is the best choice for those with children. Once you see this, you will understand. This pool thermometer has a cute figurine on top. It can be a turtle, a fish, or another cute baby figurine.

The pool thermometer looks excellent and holds well vertically in the water with such a figure. The thermometer is durable ABS plastic, which will withstand many years of use and exposure to sunlight. Colors are muted, so there are no apparent signs of aging or fading.

It is an analog thermometer, so you need to take it out of the water to find out the temperature. Has two scales – Fahrenheit and Celsius. Accuracy is decent with +/- five degrees. There is also a nylon cord for attaching to the pool.

  • Long-lasting and durable
  • Accuracy is good
  • Looks cute
  • Take it out of the water to read
  • Small read

Ambient Weather WS-14 Wireless 8-Channel Floating Pool and Spa Thermometer

Ambient Weather offers the best WiFi pool thermometer with the WS-14 model, ideal for both outdoor and indoor temperature measurements, with a water- and leak-proof screw cap.

Ideal for spa or pool use, the thermometer is solar-powered. It has an 8-channel switchable with memory for minimum and maximum indoor and outdoor temperatures that can reset daily.

The thermometer has a 60-second refresh rate with fast response, monitors the temperature at eight remote locations, and offers accurate temperature readings Fahrenheit versus Celsius.

  • Can see the pool temperature from a portable device
  • Wide temperature range
  • Backlit readout
  • Requires line of sight from instrument to the thermometer
  • Auto-reconnect doesn’t always work as expected

Aquatix Pro Large Pool Chemical Dispenser with Thermometer

This thermometer from Aquatix Pro not only reads the pool temperature of your pool but also disperses the chlorine in the water. The large round block has a pool thermometer on the side that measures temperatures up to 120 degrees Fahrenheit or 50 degrees Celsius, and the alcohol-based liquid inside the alcohol thermometer is colored blue for easy reading.

An inner chamber can hold five to seven 3-inch pills, which will release the chemical into your pool over time. A lockable lid at the top ensures that the tablets remain inside, and an adjustable ring at the bottom allows you to control the amount of chlorine escaping.

While not suitable for saltwater pools, this option is an excellent choice if you’re looking for space and cost savings.

  • Device 2 in 1
  • Durable materials
  • One year warranty
  • Not suitable for salt pools
  • To read the temperature, you need to pull it out
  • Drowns if you put the wrong pills

What are the pool thermometers?

The main types of pool thermometers in temperature measurement are analog pool thermometers and digital pool thermometers.


It is a pool thermometer that contains mercury. It is in every home. The same system is used for swimming pools. Dip into the water, wait, see the readings. A pool thermometer is durable, inexpensive, and will last for years.


The digital pool thermometers show the temperature on the displays. They measure it all the way. They float in the pool. Sometimes these thermometers come with a display installed in the house.

A digital pool thermometer is an excellent choice for those who find it difficult to read a traditional pool thermometer. With these digital options, the pool thermometer will still float in the pool, and you can quickly look down and get a reading.

Pool Thermometer Buying Tips

When evaluating many thermometers on the market, we used specific criteria that helped us make our choice. We suggest that you also consider these factors to help you make your final decision. We appreciated the following:


The whole point of a thermometer is to get accurate temperature readings. If the pool thermometer never reads correctly, it is useless. Thermometers can expect some variation as calibration is required to obtain accuracy, which is not easy.

Temperature range

Most pool thermometers have a wide temperature range. However, if you plan to use the thermometer in the spa, make sure the pool thermometer has a high upper-temperature range. If you ignore this, you may not be able to get an accurate reading in your hot tub.

Easy to use

A pool thermometer doesn’t have to be overly complicated. It is a simple device requiring minimal effort to use. If your pool thermometer constantly needs you to adjust, clean, move, or do more than read the display with it, then it is not very easy to use.


Most pool thermometers will sell for a very reasonable price. You will see a range of $ 10 to $ 100 for some WiFi options. All in all, it won’t be one of the most expensive gadgets you order for your pool. Choose a model based on performance, not price.


Pool thermometers should last several seasons. Many pool accessories have a short lifespan, but thermometers do not fall into this category. Their simple design can withstand heat and other pool-related climate challenges.

Your choice pool thermometer should not fail quickly and should remain functional for many seasons. While some color fading is not tricky, you need to do something to keep the temperature from year to year.

Source of power

The power supply may not seem like a big deal, but you will probably have a different opinion when you start using the thermometer. You need to seriously consider which option is right for you – analog or digital.

Analog thermometers are generally low maintenance because they do not have a power source. You just put it in the pool and forget.

Digital thermometers take more work. They usually have batteries or solar power to keep them running. You may need to charge them or replace the batteries to keep the device working. It may require a little extra work from you.

When it comes to the power source, you tend to choose between a solar panel and a battery, which have their pros and cons. The batteries need to be replaced as needed. It may require a unique tool, and there may be no warning that the batteries are about to run out.

Solar power units require exposure to the sun to continue operating. Your best bet is to find a device that works in minimal sunlight or a device with storage so you can get readings even on cloudy days.

How to use a pool thermometer?

Given that there are many brands and types of thermometers available on the market, their use usually depends on the type you are using.

But using a pool thermometer is straightforward. As for digital thermometers, you just need to drop the thermometer into the pool as many of them are floating thermometers and read the pool temperature for one or two minutes, which you will see on the LCD screen in ° F and ° C or get the results to individual receivers in your home.

Analog ones, in turn, require you to read and subtract readings, which are overly simplistic manually, but large prints and markers on a mercury thermometer. Having plunged into the pool, you can determine the temperature from the markings and determine it.


How can I tell if my pool thermometer has mercury?

Mercury is a silver-white to gray substance. If your thermometer is filled with a red liquid, your thermometer contains red-dyed alcohol or mineral spirits and not mercury. These are safer alternatives to mercury fever thermometers.

Why do you need a pool thermometer?

And if you have young children or older pool guests, they will be less tolerant of colder water, so it’s essential to keep the temperature at a level that won’t harm them. A pool thermometer is the only way to ensure the water is warm or cool enough for those using your pool.

What temperature should pool water be?

Pool water temperatures typically run between 78 and 82 degrees. Any more excellent than 78, and you may come out of the pool shivering. Any warmer than 82, and you may feel like you’re taking a bath.

At what temperature do algae grow in the pool?

On my list of pool maintenance essentials, it is essential to have a thermometer to keep track of the temperature in the pool because algae like to grow at higher temperatures – usually 85 degrees and above.

What are the best pool thermometers?

Of all types of pool thermometers, most people choose a pool thermometer. With this tool, you will have an easy and inexpensive way to control your pool water. WiFi and digital options are great if you’ve got the money to spare.


Before the season starts, it’s a good idea to have a tool to help you monitor your pool water temperature. A thermometer will not only tell you if you are ready to take a dip, but it will also help keep the water clean. Pool thermometers are not expensive and can be a simple yet effective tool.

Choosing the pool thermometer doesn’t have to be difficult either. If you struggle with technology and just want to start with something simple, choose one of the analog models we suggested here. But if you’re ready for a more advanced product and are ready to go to the next level, try a digital version with all the bells.

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