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To ensure that you enjoy a good time in your swimming pool, the pool water needs to be within the perfect temperature or exact temperature anytime you desire to enter the pool.
To constantly ensure that the pool water is within the correct temperature range, you need a pool thermometer to do that.
Pool thermometers are the types used to measure the accurate temperature of your swimming pool water through precise temperature reading to endure an enjoyable swim. Some of the popular ones are Homga floating pool thermometer, Milliard floating pool thermometer, amongst others.
For the question of what is the best pool thermometer available on the market, here are just a few to guide you on the pool thermometer journey.
How to Use a Pool Thermometer
Considering the fact that there are numerous brands and types of thermometers available on the market, using them generally depends on the type you are using.
But the application of a pool thermometer is easy and straightforward. For the digital thermometers, you simply have to drop your thermometer in the pool since many are floating thermometers and have read the temperature of the pool within a minute or two, which you would see displayed on the LCD screen in °F and °C or receive the results on the separate receivers within your home.
The analog ones on their part require you to manually read and deduct the readings, which are made easier but large prints and markers on the mercury thermometer. Once dropped in the pool, you can read the temperature from the marking and deduce what the temperature is.
Note that often the temperature range could be almost accurate for many; hence, you might have to approximate in some cases. But keep in mind that the ideal temperature for your pool should be between 80 – 84 °F and 27 – 29 °C.
Top 3 Recommendations
Best Overall – Inkbird IBS-P01R Wireless Pool Thermometer
Runner up – Kingsource Large Floating Pool Thermometer
Best Usage – Aquatix Large Floating Pool Thermometer
The 7 Best Pool Thermometer on the Market in 2021
1. Inkbird IBS-P01R Wireless Thermometer – Best Digital Pool Thermometer
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.
The battery-powered digital pool thermometer offers a wireless connection with 300 feet maximum wifi connection distance for convenient reading. The console provides a memory reset capacity and synchronizes easily with the console.
Sporting both Fahrenheit and Celsius readings are accurate with a pool temperature range between 40°F-158°F, which are displayed on the screen.
The model is multi-functional, made from premium durable, and high-quality materials, and it’s useful for swimming pools, spas, aquariums, hot tubs, fish ponds, and more.
- Accurate reading
- Long connection range
- Large temperature range
- Durable and waterproof
- Multi-functional and effective
- The display console must be inside
- Interferences affect the transmission between console and reader
2. Kingsource Large Floating Pool Thermometer – Best Analog Pool Thermometer
For those that prefer an analog thermometer Kingsource Large Floating thermometer has you covered.
Built from durable abs plastic material and shatter-resistant material, the thermometer offers accurate pool and spa temperature readings. The material also makes it water-proof and able to stand the test of time. Also, it includes a snap-on or off-flotation top.
Kingsource has a large display and reads up to 100 Fahrenheit and 40 Celsius, with the range being between 30°F-100°F. It comes with a leash with an anchor to keep in place.
The white color makes it easier to read, perfect for pools and hot tubs, and offers a 1-year warranty with 45 days 100% money back or free exchange guarantee.
- Premium material
- Multifunctional for pool and hot tub
- Large display screen
- Snap-on or off flotation top
- You need to go outside to read it
- Does not float correctly
3. Aquatix Large Floating Pool Thermometer – Best Value Pool Thermometer
Aquatrix large thermometer is a tough build durable, and shatter-resistant thermometer perfect for spa, fish ponds, aquarium, and pool maintenance.
The easy-to-read thermometer functions with an analog design that displays on its large viewing panel a maximum temperature of 120°F and 50°C, offering you readings that are quite accurate, unlike other thermometers of its kind. Readings come in both ranges of °F and °C for easy reading.
Features a 48 inches long leash to keep it secure, and there is a 1-year limited warranty on the product to back up its durability, quality, and budget size.
- Easy-to-read with oversized digits
- Shatter-resistant and waterproof
- High maximum temperature range
- 48 inches long string
- Readings can only be done outside the pool
- Accuracy can be off by a few degrees sometimes
4. GAME 14030-BB Solar Digital Pool & Spa Thermometer – Best Thermometer with LCD Display
As a solar energy-powered thermometer, Game 14030-BB is a top-notch digital thermometer with an easy-to-read display that features its numbers on a double-sided LCD screen and even has a low battery indicator.
With constant contact with water, the material composition is high-quality and designed to prevent shattering in extreme cases. The thermometer gauge reaches a depth of 5-inches below the water surface for a more accurate reading.
To set it up and keep it in place, Game 14030 features a durable and long-lasting tether. The model is multi-functional and can be used with others like a bathtub, aquarium, and more.
- Double LCD display
- Offers more accurate reading
- Reads in both temperature ranges
- Strong and durable tether feature
- Displays may become foggy
- Only works with solar energy
5. Ambient Weather WS-14 Wireless 8-Channel Floating Pool and Spa Thermometer – Best Wireless Pool Thermometer
Ambient Weather offers the best wifi pool thermometer with the WS-14 model that is perfect for reading both outdoor and indoor temperature while featuring a screw-on lid design protected from water and leaks.
Perfect for a spa or a pool, the thermometer is powered by the sun’s energy and features an 8 channel selectable switch with a memory for minimum and maximum indoor and outdoor temperature, which can be reset daily.
The thermometer update rate is slated at 60 seconds with a quick response and is capable of monitoring temperature in up to 8 remote locations, and offers temperature readings in degree Fahrenheit vs degree Celsius.
- Wireless relay with backlit readout
- Quick and effective reading
- Memory feature
- Reads both indoor and outdoor temperatures
- Connection problems can affect the functionality
6. Aquatix Pro Jumbo Pool Thermometer – Best Large Size Pool Thermometer
The statement “the bigger, the better” works just fine with the Aquatrix Pro Jumbo model. The thermometer offers a clear and large temperature reading display that accurately reads up to 120°F and 50°C.
It is designed with heavy-duty materials that protect it from water and its chemicals as well as from strong impact. And comes with a leash and a leash attached space to keep it secure.
Plus, as an analog model, you do not need to worry about batteries, and it features a large integrated pocket for an out-of-the-pool reading experience. Pro Jumbo is compatible with all other types of swimming pools as well as ponds and tubs.
- Large and easy to read temperature display
- Includes a large integrated pocket
- Heavy-duty material construction
- No batteries needed
- Readings can only be done manually
7. Swimline 9250 HydroTools Pool and Spa Thermometer – Best Solar Pool Thermometer
For those that would like to cut down on battery costs, Swimline 9250 offers a solar-fed thermometer for their liking. Powered by the rays of the sun, you need not worry about your thermometer dying in use. And it has a compartment for batteries in case you desire to switch power modes.
It features an LCD display panel that displays the temperature readings in an accurate manner without any hassle, providing readings in both °F and °C.
Plus, the model fits perfectly for spas and pools and offers a digital space from the thermometer stress. To keep it secure, you have a nylon cord that can be easily attached to the pool stairs or anywhere else.
- Saves cost with solar power
- Simple design with efficient functionality
- Digital display model
- Only functions with sunlight
- It turns itself off automatically
Does a pool thermometer have mercury in it?
No! Pool thermometers do not have mercury in them. On the contrary pool thermometer, manufacturers make use of another type of oil other than mercury.
The reason for the absence is that the small silvery ball found in mercury thermometer can be dangerous and can lead to contamination of the surrounding air as well as being toxic to humans and wildlife alike if spilled.
Where to put a pool thermometer?
Pool thermometers come with leashes that allow them to be attached to the side of the pool or the stairs, if any, in your pool.
For those without leashes, you can plumb the pool thermometer into the plumbing through the filter, and in the case of floating thermometers, they would simply float or bob freely across the water surface.
How to attach a pool thermometer?
Attaching a pool thermometer is quite easy, and often, the pool thermometers already come with features to aid the attachment.
Some pool thermometers are equipped with leashes or ropes that allow users to attach them to the sides of the pool, staircases, and railing if any. While floating thermometers can be easily dropped into the pool and allowed to bob within them, some can be plumbed into the filtration system.
There are basically two types of thermometers, digital pool thermometers, and analog thermometers.
Digital thermometers display the pool temperature readings on a separate display console or via applications on your phone, which occurs in the case of a wireless pool thermometer.
An analog pool thermometer has a mercury strip that reads the water temperature of your pool. This type is cheaper and more familiar but can give the wrong water temperature reading as it’s inaccurate.
Pool thermometers have 2 attachment method categories that give you the floating thermometer, which floats on the surface of the pool and uses a temperature sensor to measure the pool’s water temperature.
The floating pool thermometer often gives inaccurate readings as it picks some readings from the air temperature and pool temperature. While the hanging thermometer on its part is fixed to the wall of the pool or the pool ladder.
Accuracy and consistency
The purpose of a pool thermometer is to provide accurate readings when it comes to the temperature. And although there are always expected variations when it comes to reading.
Keep in mind that a pool thermometer that offers a fairly accurate reading in a consistent manner is much better than one that is always off with its readings.
A pool thermometer can either be solar-powered or battery-powered, and some feature both, with more being more predominant, of course.
The solar-powered ones use solar power to power the functionalities of the battery. While the solar energy ones are often more expensive due to their technicality, they last longer than the battery-powered ones.
Exposure to chemicals and water
Swimming pool thermometers are constantly being exposed to pool chemicals and pool water. For these, they are required to be built with quality material to withstand the harsh chemical effects that could wear them down faster.
The pool thermometer should be made from durable material, should be shatter-resistant, and should withstand all chemical changes and ambient weather effects.
A swimming pool thermometer is designed to give the best temperature reading of the pool in both Fahrenheit and Celsius to pool owners to keep pool owners informed of the temperature level at which the pool water is and prevent cold shock.
With all the information on the best pool thermometer on the market, finding the perfect one for you would be a stress-free activity for sure.