10 Best Digital Pool Water Tester of August 2025

• No visual color matching
• Accurately reads Free Chlorine, Bromine, pH, and Total Alkalinity on test strips.Reads strips in only 15 seconds
• Lightweight and water resistant.Large easy-to-read LCD screen
• Test strip reader will only work with the TruTest Digital Test Strips (NP208) and appropriate timing for placing the strip on the read tray must be followed
• Requires 2 AA batteries (not included).

AquaChek

• Features a photometer which gives you a digital reading of test results.
• Water resistant housing and carrying case provided.
• Tests Free Chlorine, Total Chlorine, Bromine, PH, Alkalinity, Calcium Hardness, and Cyanuric Acid.
• Uses liquid reagents for all test factors except Cyanuric Acid, which uses tablets.

LaMotte

• Precalibrated at 3000 ppm salt (NaCl) at 25°C / 77°F
• Built-in ATC sensor for automatic temperature compensation; Built-in salt (NaCl) conversion factor for meter calibration
• Salt Range: 0-5000 ppm or 0.0-0.5 %; Temperature Range: 0-55 °C or 32-130 °F; Waterproof Rating: IP65
• *** Works ONLY for Salt Water Pool and Koi Fish Pond Salt level testing.
• *** Will NOT work for Sea/Marine/Salt Water Fish Tank Salt level testing *** Will NOT work for Food salt level testing! *** Will NOT work for any other application!

eSeasonGear

• Large Digital LCD Display
• Measure pH, Free Chlorine, Salt, TDS, ORP and Temperature
• No Color Matching
• Built-in Water Sample Cup
• 1 Point Easy Calibration

Solaxx

• Recommended Chlorine Level for pool and spa: 1.2 to 1.7ppm and 7.2 to 7.8ph for PH Level for pool and spa.
• SAFE to chlorine-based tablet pool, pH needs to be correct. If the pool water balance is incorrect, it will not work properly.
• Water balance needs to be correct or it will affect the skin and eyes. pH should be neither too acidic nor basic in order to feel comfortable.
• Large-screen displays the test result on pH and chlorine level for easy and accurate reading.
• Ideal for simple operations to test water PH and CL2, no more chemicals, or no more work. It doesn't need too many steps.

RCYAGO

• AMAZINGLY ACCURATE AND WIDELY USED. It has the resolution of 0.01PH, fast to get the testing result and can test the PH value for any 0-16PH liquid which you wanna test, such as drinking water, swimming pools, aquariums, hydroponics, wine and beer.
• AUTOMATIC TEMPERATURE COMPENSATION ( ATC).You can get the accurate water PH testing result without taking care about the influence of water temperature.
• SMALL SIZE AND POCKET PORTABLE. It has small size and low weight as a pen, it is easy to be carried, It is convenient for you to take it in your pocket when you go out.
• EASY TO USE AND CALIBRATE. You can get the PH testing result of the water that just need to press the button of “ON”, and just need to press the button “OFF” to close it. You can calibrate the digital PH meter with pressing the button “CAL” and immersing the electrode into the solution.
• POSITIVE AFTER-SALES SERVICE AND WARRANTY. We will respond your any questions about the product within 12 hours. And we provide a 12-Month warranty service. Pls don’t hesitate to contact us if you have any questions, we will do our best to help you.

KETOTEK

• Economy model that is ideal for end-users. Highly efficient and accurate due to its advanced microprocessor technology.
• Hold Function: saves measurements for convenient reading and recording and battery life is approx. 1000 hours of usage and power source is 2 x 1.5V button cell batteries (included) (LR44 or equivalent)
• Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries. Display: large and easy-to-read LCD screen.
• Measurement Range: 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1ppm. From 1000 to 9990 ppm, the resolution is in increments of 10ppm, indicated by a blinking 'x10' image. Fun, translucent blue housing that's very strong and durable.
• TDS-EZ meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver. Includes a TDS chart sticker on the back of the meter that explains TDS values.

HM Digital

• 【Wide use】: Very suitable for home or laboratory use. It is suitable for testing the pH balance of drinking water, swimming pools, aquariums, reverse osmosis systems, hot springs or hydroponics. It is suitable for a wide range of applications.
• 【LCD backlit display】: PH tester bright backlit LCD display, easy to use no matter in the day and night environment, and accurate measurement and clear display results.
• 【Automatic temperature compensation】:The pH meter has built-in (ATC) automatic temperature compensation function, so it no longer needs to take care of the temperature of the test liquid, so it can accurately measure the pH value of the sample at any temperature in the range of 0 ° C-80 ° C (32 ° F-176 ° F).
• 【High accuracy】:pH tester has a sensitive electrode sensor ,simply press "ON", It only takes a few seconds for your result to appear on screen,read accurate pH levels. The included detailed manual will show you how to get the best accurate and stable reading.
• 【Auto Calibration】:The BASNGE PH meter has an automatic temperature compensation function, which can be adjusted according to the water temperature and water quality, and the pH reading can be obtained almost immediately. Similarly, you can also use "Calibration Buffer Powder" to calibrate the tester with one button.

Basnge

• Safe Water Balance needs to be correct: it will affect the skin and eyes. PH should be neither too acidic nor basic in order to feel comfortable.
• Essential Water Quality Tester: keeping your pool or spa within the safe Chlorine and PH ranges, no more chemicals. Special designed for family-sized swimming pool or spa.
• CORROSION-FREE: imbalanced pool can be corrosive to the liner, ladders and hand rail and other equipment such as the pump.
• Recommended Chlorine Level for pool and spa: 1.2 to 1.7ppm and 7.2 to 7.8ph for PH Level for pool and spa.
• Simple Operation and Easy to Carry: test water PH and CL2, no more chemicals, light weight and easy to carry.

Fusiontec

• ✔HIGH ACCURACY: Ensure your pool, even drinking water has a perfect ph balance and safe for use with tester precision ph accuracy. Tester has a sensitive electrode sensor to read accurate ph levels. Included detailed manual will show you how to get the best accurate and stable reading
• ✔AUTO CALIBRATION: The ph meter has an auto temprature compensation feature that adjusts to water temperatures and water quality to give ph readings almost instantly. As well, you can calibrate the tester with one touch button using buffer powder.
• ✔AUTOMATIC TEMPERATURE COMPENSATION: No more need to take care about the temperature of testing liquid, as ph meter has built in (ATC) automatic temperature compensation, so that it can accurately determine pH value of the sample at any temperature in a range of 0°C - 80°C (32°F - 176°F)
• ✔WIDE USE: Ideal for household or laboratory use, suitable for testing ph balance of drinking water, pool, aquarium, RO system, spa, or hydroponics; appropriate for Wide Range of Applications
• ✔MAKE YOU SATISFIED WITH THE PRODUCTS: Come with 1x PH meter, 1x user manual, 2x 1.5V LR44 button cells(build-in), 3x PH Buffer Powders

APLUSTE