Search  for anything...

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

  • Based on 1,930 reviews
Condition: New
Checking for the best price...
$29.99 Why this price?
Save $10.00 was $39.99

Buy Now, Pay Later


As low as $7 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon

Arrives Thursday, Oct 16
Order within 10 hours and 22 minutes
Available payment plans shown during checkout

Features

  • High Acurracy: This floating pool thermometer features highly precise sensor, accurate to 0.9F(.0.5C) in the temperature range of 32F to 140F. Sensor temperature range: -40F-158F, 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!
  • 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!
  • More Durable Sensor: Floating thermometer for pool is designed with lPX8waterproof and high-quality ABS materials, ensuring it can withstandexposure to pool water and various weather conditions for long time! Ensure mental parts are properly aligned and press them together firmly to ensure waterproof performance (Antenna, signal light and rope hole will be aligned.)
  • Easy to Use: The pool temp floater and receiver are automatically paired, making it go straight out of the box for use, no more tedious setup! Powered by 3A batterys (included)
  • New Version: Upgrade a "Mode" button to toggle between pool and hot tub settings, ensuring precise comfort indicator for your family to enjoy the water play safely and comfortably

Brand: ThermoPro


Special Feature: Waterproof


Age Range (Description): Adult


Included Components: 1 x Receiver, 1 x Transmitter, 1 x Rope, 4 x AAA Batteries, User Manual


Outer Material: Plastic


Specification Met: FCC


Display Type: Digital


Connectivity Technology: RF Technology


Product Care Instructions: Hand Wash Only


Unit Count: 1.0 Count


Brand: ThermoPro


Special Feature: Waterproof


Age Range (Description): Adult


Included Components: 1 x Receiver, 1 x Transmitter, 1 x Rope, 4 x AAA Batteries, User Manual


Outer Material: Plastic


Specification Met: FCC


Display Type: Digital


Connectivity Technology: RF Technology


Product Care Instructions: Hand Wash Only


Unit Count: 1.0 Count


Power Source: Battery Powered


Model Name: outdoor thermometer


Number of Batteries: 4 AAA batteries required. (included)


Item Length: 7.9 Inches


Upper Temperature Rating: 158 Degrees Fahrenheit


Response Time: 50 seconds


Reusability: Reusable


Resolution: [PO]


Immersion Depth: 7.9 Inches


Lower Temperature Rating: 32 Degrees Fahrenheit


Style: Pool Thermometer


Indoor/Outdoor Usage: Outdoor


Manufacturer: ThermoPro


Item Weight: 15.2 ounces


Item model number: outdoor thermometer


Batteries: 4 AAA batteries required. (included)


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Oct 16

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Does a Good Job, Until It Doesn't
Style: Pool Thermometer
Good value in a useful product where the temperature reading of a pool, spa or other facility is desired remotely, indoors, for example. We had no way to check the calibration, but its readings gave no reason to be doubted. Just installed--no indication of its longevity, but the internals appear to be very well made. One caveat: keep the threaded ring on the remote sensor tight or moisture may get in and disrupt its operation. If the pool has a cover, we suggest cutting a clearance opening in it to keep the remote unit exposed to the atmosphere, again to minimize the chance of moisture intrusion. Update: Unit worked very well for 2-3 weeks, then stopped communicating the temperature. Opening the pool unit revealed a troubling issue--water inside. We tried drying it out, which enabled it to work for a while, but then more water got in. We could not determine where the leak was, so sadly, just tossed it. Too bad the water sensor doesn't like being in the water! ... show more
Reviewed in the United States on February 8, 2025 by Amazon Customer

  • Awesome except leaks and stops working in one month
Style: Pool Thermometer
First off, love this device and it does exactly what I needed. Accuracy of temperature indicated seems good as it agrees with my other two thermometers. Problem is, almost exactly one month after put into use it suffered water intrusion and stopped working. The pool device was not abused or taken down to the bottom of the pool--not played with by kids. Still, water intrusion is visible in digital display on top and repair seems like a lost cause. If manufacture could figure out a way to better seal this device, they would have a home-run. UPDATE 7/21/25: have to commend Amazon/Manufacturer on excellent return and re-ship experience. Just two days after item failed, I have returned the defective item and received a replacement! Replacement is in use now and working fine. Will see if the prior leakage was a one-off. ... show more
Reviewed in the United States on July 19, 2025 by Texas Pete

  • Great so far compared to other models.
Style: Pool Thermometer
Using it for over 8 months in a hot tub and works great so far. You must make sure the lid/top is sealed properly. It is easier to get right on this model compared to others. Do not get the Base unit wet (like accidentally dropping in a dog water bowl... lol) it is NOT water resistant, not that it was promised to be .It will stop working until you dismantle it and dry it out... once you do its was fine. ... show more
Reviewed in the United States on August 19, 2025 by Game Gear and Garage

  • Less than 7 months old and now it is broken
Style: Pool Thermometer
Great product, at first. After the first set of batteries died, it died. Replaced the batteries in the sending unit and it will not turn on any longer. Now we just have the receiver working as a indoor thermometer. Time will tell what happens when those batteries die. We have only had it 7 months now. ... show more
Reviewed in the United States on July 18, 2025 by Steve

  • Excellent Pool Thermometer
Style: Pool Thermometer
Excellent! Bought this unit to replace a different brand that was defective. Extremely satisfied with this unit, I have the temperature sensor in the skimmer box of our inground concrete pool and the receiver unit on the refrigerator in the kitchen, at least 50'. Works great, no connection issues,very accurate, large numerals. Very easy set up right out of the box. Couldn't be more satisfied. Unlike the previous brand that we had for a while but then the sensor began to leak. Contacted their customer service and their only response was "it's out of Warranty ". It probably only needed a new gasket, but no, they were of no assistance. So I wrote a negative review for their product on Amazon. So in conclusion, I am very happy with this pool thermometer and highly recommend - plus their product description mentions that they have excellent US based customer service, hopefully I won't need it... ... show more
Reviewed in the United States on May 2, 2025 by Amazon Customer

  • Works well
Style: Pool Thermometer
I very much like this what this does, and rate it a 4 because it does exactly what I expect it to, so do not see a need to rate it a five. I wanted somehting to keep my pool water temp and outdoor air temp. this does that. There is a small removable magnet on the back that you can use to place this on a metal piece to hold it. I had perfect use for that, so that was advantageous for me. Update Well after less than 60 days the item failed. It no longer reports water temp. No idea why. Opened it up and no water entered the battery box and I changed the battery yet it no longer reports water temp. Second update. I called the manufacturer to trouble shoot the issue. They simply sent me a new sending unit. Cannot ask for much better customer service then that. Lets hope it lasts longer this time. ... show more
Reviewed in the United States on April 25, 2025 by Richard E

  • Doesn't last a full season... Not a quality item.
Style: Pool Thermometer
The first one of these I received worked for about 2 days. I returned it and got a second one. This one has gone out now as well just short of 3 months. A few days ago, it stopped transmitting. I found the display had gone wonky. I changed batteries and it began working again... for a day. Now no display. As I was removing the batteries to test, I could see brief random flashes on the display. Batteries were good, put them back in. Display comes on with random shapes when tapped lightly... Don't buy one of these if you expect it to last one season... Update: After this review, the seller, sent another unit, no questions asked, no return required. So far, this one is working so upping the stars to 3 for the moment... ... show more
Reviewed in the United States on July 22, 2025 by Scott - Texas

  • Does not last long
Style: Pool Thermometer
Worked great for about 4 months .. thern the floating robe body leaked and stopped working ..
Reviewed in the United States on August 12, 2025 by James Asbill

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...