Best Pond Test Kits & Thermometers of 2025

“I found this thermometer to be great! It works flawlessly in my cold plunge, allowing me to check the temperature without lifting the lid.”

“This product is perfect for us! Our hot tub's temp sensor was unreliable, but with this thermometer, I can monitor the temperature from inside the house and adjust it before heading outside.”

“I was surprised by how simple the setup was. The Bluetooth connection is impressive, reaching across multiple rooms without issues. The floating thermometer matches the reading on the indoor device perfectly.”

"As a long-time fish keeper, I finally decided to invest in a water test kit. I was pleasantly surprised to find this kit on Amazon for less than half the price at my local pet store. The instructions are clear, and the laminated card ensures I can easily measure results without fear of water damage. This kit will help me be proactive about my aquarium health!"

"I've used this test kit for my freshwater fish, and I can confidently say it’s essential. It contains all the necessary tests to ensure my tank's water quality is excellent. The accuracy of the liquid tests far surpasses those of strips, and I appreciate having four test tubes to conduct all tests simultaneously. Just remember to follow the directions closely for the Nitrate test to get accurate results!"

"As a first-time aquarium owner, I was worried after losing two shrimp. I purchased this kit to check my water quality, and I was thrilled with the easy packaging and clear directions. I feel much more confident now in maintaining my tank's health. This was a great purchase!"

"I absolutely love this thermometer! It's very cute and the hot pink color is just gorgeous. I was surprised by its small size, as I expected it to be bigger based on the pictures. It floats upright in my smaller pool, so for $7, I think it's a great purchase!"

"I've used this thermometer before, and it's been a reliable choice for me. In Florida, I typically need to replace it after one season due to wear. I’ve had other designs like the shark and turtle, but I keep coming back to the flamingo because I just love them!"

"I purchased this thermometer for my pond, and while it did work, the dirty water made it hard to see the temperature. I can't figure out how to clean it, so I'm on the lookout for something more suited for ponds. Other than that, I've had no major issues."

"I bought this thermometer for checking the water temperature while kayaking. It's large and sturdy, and even my 74-year-old eyes find it very legible. The attached two-foot line keeps it close, and I'm quite satisfied with its performance."

"After my previous thermometer became useless, I got this one. It's secured with metal bands, which gives me confidence it won't come apart. The readings are easy to read, and it accurately stays within range just like my old one did."

"I had the same thermometer before, and it lasted a long time. This one is also clear and easy to read. Attaching it to the railing was a breeze since it comes with a string. I'm hopeful it will last just as long!"

"I used it in my above ground pool, and it's super cute and works great!"

"After I mentioned it broke, the seller immediately contacted me and offered a replacement. What great service!"

"I found the turtle to be an accurate thermometer. However, the little cord is too short and weak for larger bodies of water."

"This thermometer has proven to be durable since I bought it four months ago at the beginning of summer."

"I appreciate the large numbers; I can read them from outside the pool without getting wet."

"I was a bit disappointed to find that it isn't fully submersible, as the image suggests. The top floats above the water, which I believe affects the temperature reading."

“I buy one to two new pool thermometers every year. I'm not sure why they don't last; maybe it's the AZ summer heat? This little turtle is cute, but he has a kind of meh expression. Overall, it works fine, giving me accurate pool temps, and it didn't cost too much since I regularly replace them.”

“I purchased this thermometer to check the pool temperature while I'm swimming. I had a regular one in the skimmer, but reaching for it while in the pool was a hassle. This little guy, whom I call 'Triple T' (Turbo the Turtle Thermometer), floats around easily, and I love the large numbers on his thermometer. He’s even cuter in person and adds fun to the pool. I highly recommend getting your own 'Triple T'!”

“The turtle looks adorable, but I'm not completely convinced about its accuracy. It seems like the surface water feels much cooler than what the thermometer indicates. Still, it's cute and adds a nice touch to the pool.”

"I found this meter to be working great for our needs. After our salt reader stopped displaying, I decided to try this out. I verified the salt levels by comparing its readings with those from the local pool store, and they came out really close. I appreciate that it’s reusable, so no more one-time-use strips for me!"

"As a new owner of a saltwater pool, I did my research and learned that having a third-party salt level tester is recommended. Unfortunately, I never got a consistent reading from this device, with numbers fluctuating wildly. I tried various troubleshooting methods, but ultimately, I decided to return it. I believe that if you're monitoring your pool's chemistry regularly, this device may not be necessary."

"This TDS Meter arrived quickly and has been calibrated for accuracy. It’s nice to know that it can give me a reliable measurement of salt in my pool. I like that it works well for the salt levels I need, around 2500 to 3500 ppm. Just be aware that it may not be very accurate at lower values."

"I find this thermometer adorable floating in the pool, and it accurately matches the temperature registered on the pool pilot. I would buy it again."

"I purchased this thermometer a couple of months ago, and it continues to work well. The larger numbers make it much easier for me to read compared to others I’ve owned."

"My kids love to search for the floater and check the pool temperature before jumping in, just to ensure it's warm enough for a dive!"

“Checking the water temperature to know when to stop feeding my fish is important, and these floating thermometers make it fun!”

“I thought these were really cute. The thermometer seems accurate as I tested it in my home and compared it to the house thermostat. My only complaint is that in the first week, the flamingo started getting water inside, so the thermometer doesn’t sit correctly anymore.”

“They look cute and give you a quick temperature reading. I floated one in my pool and the other in my hot tub!”