Updated: July, 2025

Best pool thermometers

Save up to 42% Off

1

Newentor

9.9

Exceptional

Newentor Pool Thermometer Floating Easy Read, IPX8 Wireless Swimming Pool Thermometers with Indoor Thermometers, Floating Thermometer for Spa/Hot Tub/Fish Tank, Ivory White

20% Off

Why we love it

Reliable temperature accuracy.

Durable waterproof design.

Versatile for multiple environments.

Main highlights

Quadruple Waterproof Protection
Ensures durability with IP68 waterproof rating, thick seals, and corrosion-resistant casing.

Multi-Zone Versatility
Ideal for pools, bathtubs, saunas, and more, with indoor temperature and humidity monitoring.

High Accuracy
Praised for its 0.1°F precision and quick updates every 30 seconds.

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How do we rank?

How do we rank
Our AI-powered platform ranks products using multiple weighted factors from millions of products and user reviews across the web, providing the most valuable and real data. Higher scores rank first.
2

GoveeLife

9.8

Exceptional

GoveeLife Smart Pool Thermometer with WiFi Gateway, Digital Swimming Water Thermometer Temperature Monitor with IPX7 Waterproof, Remote App Notification Alert for Ice Bath Tub, Fishbowl, Pond, Hot Tub

21% Off

Main highlights

Smart Remote Monitoring: With a connected 433 gateway (up to 328ft /100m), you can easily monitor your water temperature data in real time from anywhere with the App. The Wi-Fi gateway can be paired with up to 10 sensors, extending your monitoring range to any location indoor and outdoor.

More Accurate: The pool thermometer sensor can detect temperatures ranging from -4°F to 158°F, can accurately detect the temperature change of ±0.9°F, refresh speed up to 2S, double-click the internal button to switch °F/°C.

IPX7 Waterproof Protection: The GoveeLife Pool Thermometer is waterproof and can accurately measure temperature even when entering the water. You don't have to worry about water damaging it at all.

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3

ThermoPro

9.6

Exceptional

ThermoPro Digital Pool Thermometer Floating Easy Read, Large Size Water Thermometer for Cold Plunge, IPX8 Waterproof Water Temperature Monitor for Hot Tub/Ice Bath/Swimming Pool/SPA/Aquarium/Pond

16% Off

Main highlights

Large Backlit Display: Pool thermometer wireless with temperature and humidity monitor features large digits and backlight to ensure easy reading even in dim light conditions; All time/24 hours max and min record helps you track temperatures throughout the day!

High Acurracy: This floating pool thermometer features highly precise sensor, accurate to ±0.9℉(±.0.5℃) in the temperature range of 32°F to 140°F. Sensor temperature range: -40℉-158℉, suitable for ice bath tubs, cold plunge, babybath, hot springs and aquarium

500FT Long Range: With RF technology for more stable connectivity, this pool temperature thermometer allows you to monitor the pool temperature outdoors from your house up to 500FT, checking the pool temp without going outside!

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4

WEBEST

9.5

Excellent

Digital Pool Thermometer – IPX-8 Waterproof Swimming Pool Thermometer Floating Easy Read, Environment-Friendly Solar-Powered Pool Temperature Gauge for Swimming Pools, Spa, Hot Tubs

Main highlights

Solar-Powered and Environment-Friendly: The WEBEST swimming pool thermometer floating easy read is equipped with a solar battery that charges under sunlight, making it an energy-efficient and environmentally friendly choice for monitoring your pool's temperature.

IPX-8 Waterproof Design: With its IPX-8 waterproof rating, WEBEST floating pool thermometer is built to withstand water immersion, ensuring accurate temperature readings even when submerged in the pool.

Easy Reading LCD Screen: The large, easy-to-read LCD screen provides clear and precise temperature measurements in both Celsius and Fahrenheit, allowing you to monitor your pool temperature with ease by WEBEST digital pool thermometer floating.

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5

Unipool

9.4

Excellent

Floating Pool Thermometer, Large Display with String Easy to Read, Shatter Resistant, for Outdoor & Indoor Swimming Pools, Spas, Hot Tubs & Aquariums (Turtle)

14% Off

Why we love it

Innovative Turtle design

Clear Temperature Reading

Easy to use

Main highlights

Key Features and Benefits
Durable, shatter-resistant design with large, easy-to-read temperature display in both Fahrenheit and Celsius. Ideal for cold plunge pools.

Ideal Use Cases
Perfect for outdoor & indoor swimming pools, spas, hot tubs, aquariums, and fish ponds. Floats for easy access and accurate, quick readings.

Customer Praise
Highly praised for its accuracy and durable build quality. Customers appreciate the ease of use and reliability in various water settings.

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6

XY-WQ

9.3

Excellent

XY-WQ 2 Pack Floating Pool Thermometer, Large Size Easy Read for Water Temperature with String for Outdoor and Indoor Swimming Pools and Spas

Main highlights

Large size and clear display make it easy to read from a distance. The pool thermometer liquid ingredients: Water 90.1%; Kerosene 9.9%.

Keep your pool or spa at the perfect temperature with our easy-to-read thermometer. Temperature reading range：20 to 120 °F / -10 to 50 °C.

Double the Fun: Each set includes two adorable designs - a flamingo and a turtle - that will add a touch of whimsy to your pool or spa.

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7

Pircaath

9.2

Excellent

Pircaath 2025 Upgrade Digital Pool Thermometer Floating Easy Read, Solar Pool Thermometer with Light Show, Large Screen Pool Temperature Thermometer, IP68 Waterproof Pool Water Thermometer for Hot Tub

18% Off

Why we love it

Creates stunning poolside light displays.

Eco-friendly solar power operation.

Provides accurate temperature readings.

Main highlights

Mesmerizing Light Show
Pircaath's digital pool thermometer projects dynamic diamond light patterns with 7 modes, enhancing evening poolside ambiance.

Ideal for Eco-Conscious Users
Solar-powered design eliminates battery changes, promoting sustainability and reducing environmental impact.

Highly Praised Accuracy
Customers appreciate the precise temperature readings and easy-to-read LCD display, enhancing user experience.

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8

Pentair

9.0

Excellent

Pentair R141036 127 Tube Thermometer with ABS Case and 3-Feet Cord

42% Off

Why we love it

High quality thermometer for accurate temperature readings

Helps deliver information about the performance of pool heating systems

Comes with an ABS case and 3 feet cord

Main highlights

Key Features
High-accuracy pool and spa thermometer with durable ABS case and 3-feet cord for reliable, user-friendly temperature readings.

Ideal Use Cases
Perfect for monitoring pool/spa temperatures, ensuring optimal comfort, and checking efficiency of heating systems in recreational water environments.

Customer Praise
Most reviews highlight its accuracy and durability as the top features, appreciating its long-lasting performance in various water conditions.

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9

Pircaath

8.9

Very Good

Pircaath 2025 Next-Gen Solar Pool Thermometer Floating Easy Read, Digital Pool Thermometer with Extra-Large Backlit LCD Screen & Rope, IP68 Waterproof Pools Water Temperature Gauge for Hot Tub, Spa

10% Off

Main highlights

Solar Pool Thermometer: Pircaath pool thermometer is powered by solar energy, it has the largest solar panel and extra large capacity battery on the market, which increases the charging efficiency by 50%. This means you no longer need to replace the battery or spend time maintaining it, just set it in the pool. It can last up to 18 days on a full charge, ensuring you can keep an eye on your pool water temperature at any time.

Extra Large & Backlit Display: Pircaath digital pool thermometer features an oversized display that is 25% larger than the similar on the market. What's special is that our thermometer has a built-in light sensing function. The backlit display automatically light up once it detects dark surroundings, ensuring that the temperature is clearly visible at night or in low light conditions, adding endless convenience to your swimming experience.

Accurate Reading: This pool temperature thermometer has high-precision temperature sensor that goes up to 5 inches underwater. The temperature display responds within 10 seconds to provide you with a precise and reliable measurement. With a temperature range of 32°F-158°F/0°C-70°C, ensuring accurate readings in a wide variety of water temperature environments, whether it's a swimming pool, hot tub, spa, or ice bath.

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10

Inpool

8.7

Very Good

Floating Pool Thermometer, Large Display with String Easy to Read, Shatter Resistant, for Outdoor & Indoor Swimming Pools, Spas, Hot Tubs & Aquariums (Flamingo)

16% Off

Main highlights

【Innovative Flamingo styling design】The Flamingo Style Swimming Pool Thermometer for Cold Plunge, It is in superior quality , and built from durable material & shatter resistant，It has excellent comprehensive physical and mechanical properties.

【Easy to use】This large pool thermometer used to measuring pool and spa water temperature and provide accurate reading in both Fahrenheit and Celsius.Directly put the temperature into the water, generally need 1-2 minutes, move out of the water to read the degree.With a light weight,it's convenient for you to carry anywhere or stick to the place you frequently use.

【Clearly Temperature Reading】With a large temperature reading display in Fahrenheit and Celsius.Reads Up to 120 Fahrenheit and 50 Celsius.

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Our top pick

1
20% Off

Newentor Pool Thermometer Floating Easy Read, IPX8 Wireless Swimming Pool Thermometers with Indoor Thermometers, Floating Thermometer for Spa/Hot Tub/Fish Tank, Ivory White
The Newentor Pool Thermometer Floating Easy Read is a top-tier digital thermometer offering exceptional durability and precision. With its quadruple waterproof protection, including thick seals and anti-corrosion casing, it withstands long-term submersion while maintaining buoyancy and readability. Ideal for diverse environments, this thermometer is perfect for pools, bathtubs, fish tanks, and saunas, and even monitors indoor temperature and humidity. Its high accuracy is ensured by imported chips and a contact measurement method, providing precise readings every 30 seconds. The thermometer's enhanced buoy antenna technology allows for stable signal transmission through barriers, making it reliable even in challenging conditions. Additionally, it boasts energy-saving features, making it environmentally friendly. Overall, this thermometer is highly praised for its reliability, versatility, and precise performance, making it a valuable addition to any setting requiring accurate temperature monitoring.

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