The temperature of your pool is important for a few key reasons. First of all, you will obviously want it to be warm enough to be comfortable to get in but you should also make sure that it is not too hot, enabling bacteria to rapidly grow. Due to this, getting the best pool thermometer is important.

In order to get the best swimming pool thermometer, there are a few important features to consider. You might want it to be solar-powered, or check if it features any alarms that will alert you in danger, but according to the preferences, you must make sure to pick an accurate one.

In our buying guide, we will explore those key features in further detail. In addition, we have completed a pool thermometer review on the best ones available. Once you have read through this guide, you’ll know how to get the perfect thermometer for you.

How To Choose The Best Digital Pool Thermometer- Buying Guide


Types of Thermometers

The two main options are digital and analog. Which one you choose is entirely up to you, and both come with advantages and disadvantages.

Analog thermometers have a mercury strip that will expand and contract with the heat and cold. When the metal shifts, it will correspond with the temperature, and there will be a scale down the side for you to read. When the temperature goes up, the metal will expand upwards, and when the temperature drops, the metal strip will contract and move downwards. It will stop when it reaches the temperature of the surroundings.

A digital thermometer will read the temperature of the pool, and display it digitally on a screen for you. There is usually a probe, or something else, which sits below the surface of the water and monitors the temperature. The temperature on the screen will change to reflect the temperature of the probe. Some digital thermometers are also wireless.

One part sits permanently in the pool, while the other part can be placed up to 100m away. This means that you can monitor your pool temperature without having to go out to your pool. There are also some advanced thermometers that can be used with an Android or iOS app.

Instead of owning a separate unit to read the temperature, you can use your smartphone to monitor the temperature of your pool, no matter where you are. The great thing about using an app is that you can also hook your smartphone to the other accessories in your pool, and manipulate the other aspects of your pool at the touch of a button.

In the terms of versatility, floating thermometers are easy to use, as you can remove them once you get your temperature reading, but the hanging thermometer will give you a more accurate reading as they are not sitting on the top of the water like floating thermometers. On the other side, a floating thermometer will last longer.

Digital VS Analog

When you are comparing the types of pool thermometers, you will get a more accurate reading for a digital thermometer. They have more advanced sensors than an analog thermometer. They also give you a reading on a screen, and there is no way for you to misread a digital thermometer. With an analog thermometer, your reading could be off if you are holding the thermometer at an angle. Digital thermometers are also more expensive than analog ones. They have more parts and technology inside.

Analog thermometers do not have any fancy sensors or electronics inside so they will last longer. Digital thermometers will begin to break down, the longer they are in the pool. Hanging thermometers are a more permanent addition to your pool.

Solar Powered Vs. Battery-Powered

Whether it is solar panels for sailboats or a solar cover, using the energy from the sun can save you a lot of money. This is a very simple choice and will often come down to the price. You will mainly find two types, but there is the infrared thermometer as an option too.

Some will take advantage of the natural power of the sun to power the unit, while others will use batteries. Solar-powered thermometers will generally be more expensive than battery-powered, but they will also cost less to run over the course of its life. Solar-powered thermometers will cost you more at the start, but over time they will end up saving you money.

Battery-powered thermometers are cheaper to buy, but you need to replace the batteries every so often. This is an expense which you need to factor in when you are buying your thermometer. Of course, you can cut down on battery costs if you use rechargeable batteries.

The best thing about solar-powered thermometers is that they are eco-friendly. They do not draw any power from a battery source. They do not drain any of our finite energy. Instead, they draw from the abundance of the sun’s power.

If you combine your thermometer with a solar heater, then you can begin to save some real money. When you invest in solar power, not only are you getting your energy for free, but there is no need to manufacture batteries, saving more of the world’s energy.

Exposure to Water and Chemicals

Whether you are getting a pool cleaner, a thermometer or a fence, you want it to last. When we buy them, we are not thinking about ever replacing them. The truth is that threefold be a chance that we have to replace them.

Pool thermometers are not like traditional ones. They are not used for a few seconds and then placed into storage since there are remote pool thermometer options too. A lot of them are used constantly, giving real-time updates on the temperature of the pool.

These thermometers are exposed to water and the chemicals in the water, making them break down quicker. Water can get inside your thermometer, and there is also the chance that the thermometer will be exposed to the sun for long periods of time.

Materials Used

When you are choosing your top-rated swimming pool thermometer, you obviously want to choose one which has the best parts and materials possible. The price of your product will be a factor in this, as you will have a budget for your thermometer and the quality of the thermometer will fall into this bracket.

Warranty of the Product

What you do want to look for is a good warranty. Something is likely to go wrong with your product at some point, and of that is in the first few years of its lifespan, then a warranty will have you covered. If you do not get a product with a warranty, then you leave yourself open to having to pay for repairs or replacing your thermometer altogether.

When you are buying pool thermometers, it is worth spending a little more to get yourself at least a one-year warranty. You never know what is going to happen with the accessory, especially one which is in contact with the water all of the time. Many pool thermometers will come with a warranty, and you could get a five-year warranty. Even if you only get a warranty on parts, you can really save yourself some money and hassle.


Even though the thermometer is accessory itself, the more advanced ones have additional accessories too. If you want to buy a simple one, able to show the accurate temperature without extra features, you should seek for one without accessories. On the other hand, the more advanced ones will do more than just reading the temperature. But in such a case, you should invest in something more powerful and sophisticated.

When you are shopping for pool thermometers, you want to get the best value for money. Find the models which fall within your budget, and then look for the optional accessories within that. If you do not need any other accessories, then you do not need to worry about finding anything more.

Installation Procedure

Some thermometers will come with installation equipment, while others will not. If the thermometer is easy to install, then this may not be a problem, but if it takes a little bit of work to install your thermometer, then you may want to look for a model that has everything included.

You will also find that some models come as a stand-alone thermometer, and you have to buy the receiver separately. This gives you the option of combining it with any receiver. Others will come with everything you need, while some will come with multiple receivers. Your choice will be dieted by your needs.

When you are choosing the type of thermometer, you will also want to choose how it attaches to your pool. Some thermometers hang on the side of your pool or are attached outside of your pool with a probe hanging down. Other thermometers float in your pool. You can attach hanging thermometers to places like your pool stairs, while the floating thermometers will float on the water.


When you buy one, it will already be calibrated for you. There should be no need to calibrate it further, though, if you do notice that the temperature seems off, then you may have to calibrate it.

Some pool thermometers will not be able to be calibrated, and you may need to find a replacement thermometer. If your thermometer is able to be calibrated, then refer to the instruction guide for how to do this.


Some digital pool thermometer options will come with an alarm. Just as the alarm will alert you if anyone is accessing your pool, its alarm will alert you when the temperature of the water reaches a certain temperature.

If it comes with an alarm, then you will be able to set it to alert you when the water becomes too hot or too cold. This is ideal if you are not going to be using the water for a long period of time, and will not be able to feel how hot or cold your swimming pool is getting. It also helps you to better manage the water quality and basic water chemistry.



Q: Why Do I Need A Pool Thermometer?


It's important to be aware of the water temperature inside your pool due to a few reasons. The first thing that's important is safety because with a regular thermometer won't work as planned. Traditional options have mercury or alcohol inside without a fully sealed design which brings a risk that they won't withstand the chemicals and might cause a leak.

There are many benefits to investing in a thermometer that is suitable for your pool. They make it more convenient to track the water temperature in your pool and set the exact number. This is especially important when you have kids swimming in your pool. It is accurate and fast, especially digital ones. Most digital pool thermometers will update every 30 seconds, giving you real-time information about your pool. They are also a lot more accurate than any other thermometer you could put in there.

If you are trying to balance the chemicals in your pool, then it can be beneficial to know the exact number. Pool thermometers are also extremely compact and small. When you have lots of pool floats and water toys in your pool, you do not have to worry about it taking up too much space.

Q: Types Of Swimming Pool Thermometers?


There are two main types: digital water thermometer and analog. Which one you choose is entirely up to you, and both come with advantages and disadvantages. Analog thermometers are the thermometer you will be most familiar within this world.

The analog option will be able to deliver results and measure the water temperature, but since they are built for simplicity, you aren't supposed to expect highly accurate results. On the other hand, when using a digital option, you will be able to read the results and make sure that they are seen perfectly clear, which won't always happen with an analog option.

Q: How Temperature Affects Pool Water Quality?


There are a few reasons why the wrong water temperature can affect water quality. The warmer your water gets, the more likely you are going to have bacteria grow. Bacteria love warmth, especially in wet environments. As the water gets hotter, bacteria begin to thrive, and your chlorine is eaten up. All of the chemicals in your pool are thrown off balance. You do not want people swimming in a pool with harmful bacteria.

Even before the bacteria have had a chance to grow, a pool that is too hot can be detrimental to the health of swimmers. If you stay too long in a pool which is very hot, you can become dehydrated. This is the same as staying in a hot tub for too long. You also run the risk of muscle cramps and overheating. If you keep your pool in a warm condition, then you can avoid all of these problems. And if the temperature is too cold or too hot, you will even risk damaging the pool.

Globo Surf Overview

Accurately monitoring the condition of your pool can ensure that your pool remains comfortable for everyone to use and also as safe as possible. When it is you will be able to simply have fun with the likes of your pool slides and pool floats. You can choose between a digital, mercury or infrared thermometer.

Without the best pool thermometer, you cannot accurately maintain your pool temperature and balance the chemicals. Take the time to find the swimming pool thermometer which fits your need and once you do you never have to guess the temperature ever again.

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