5 Best Digital Pool Thermometers

Digital pool thermometers are the best way to tell what the temperature of your swimming pool is. I know it sounds pretty obvious, but not all pool thermometers are the same. There are two different categories of thermometers: digital and standard mercury ones. And you can have a floating or handheld one.

Mercury-filled floating thermometers can be damaged from either severe weather or swimmers. If they break, you could have a real mess on your hands, including mercury in the water and broken plastic. Not to mention broken glass that could rip your liner, or worse, hurt a swimmer.

Here are the best 5 digital pool thermometers that I recommend.

1. Hydro Tools Digital Pool Thermometer

It floats, it’s easy to read and it’s DIGITAL! What more could you ask for? It comes with 2 AA batteries, so it won’t be hard to find batteries when they run out, and you can use rechargeable batteries if you’re looking to be more Eco-friendly. You can secure it to a ladder or deck using the supplied nylon cord, or you can simply place it in your skimmer basket.

Swimline HydroTools Solar Powered Digital Pool and Spa Thermometer Price: $15.99 Swimline HydroTools Solar Powered Digital Pool and Spa Thermometer If you click this link and make a purchase, we earn a commission at no additional cost to you. Last Updated: 12/07/2018

2. Raytek Infared Thermometer

A point and shoot laser thermometer. Just aim the device at the water in your pool (preferably the center of your pool), hit the trigger and the temperature will display on the screen. It’s a very handy device, literally! You can also use it for cooking.

Raytek Non-contact MiniTemp Infrared Thermometer Price: $79.64 Raytek Non-contact MiniTemp Infrared Thermometer If you click this link and make a purchase, we earn a commission at no additional cost to you. Last Updated: 12/07/2018

3. VioProducts Wireless Indoor/Outdoor Floating Thermometer

This is a multi-functional thermometer that monitors both water and indoor/outdoor temperatures If you click this link and make a purchase, we earn a commission at no additional cost to you. . It even records the temperatures so you can view the increases and decreases in water temp over time. You can also set an alarm for when your pool reaches a certain temperature which is perfect for finding the perfect time in the day to swim at the temperature you like.

4. NEEWER® Professional Wireless Digital Swimming Pool SPA Floating Thermometer

Floating thermometer with built-in digital display transmits temperature data to the indoor temperature display station. Sensor range of up to 300 feet allows flexible placement of the temperature display station within your home. Audio and visual alarm alerts you if temperature is not within your defined range. Convenient frost warning If you click this link and make a purchase, we earn a commission at no additional cost to you. feature activates when pond water temperatures drops below 39.2 degrees Fahrenheit.

5. Poolmaster Floating Digital Thermometer

This simple, floating digital pool thermometer If you click this link and make a purchase, we earn a commission at no additional cost to you. has a large easy-to-read LCD display which includes temperatures to 1/10th of a degree and a long-life battery.

NOTE: Make sure to remove all digital thermometers when adding chemicals to the pool.

Happy Swimming!

Frustrated by adding chemicals and trying to keep your pool clear all the time?

We cut out all the fluff and confusion of pool maintenance and stripped it down to the bare bones in this easy-to-read illustrated digital guide.

Click here to learn more
The Art of Pool Care

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