Digital Water Quality Tester We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it. A TDS meter is an inexpensive and convenient digital tool to instantly check your overall water quality. With the push of a button, the TDS-EZ can tell you your overall water purity level, which will be displayed on the screen in ppm (parts per million). The lower the TDS level, the purer the water, with 0 ppm being pure H2O. The TDS-EZ is great for checking your tap water quality, or knowing when to change a filter. (The meter does not test for biological contaminants.) The TDS-EZ is a great tool for drinking water, water filtration and purification, hydroponics (test your nutrients), aquariums, RO/DI systems, pools and spas and more.


  • There isn’t cal powder in the package. We had strictly test each pH pen before shipped to make sure PH meter pen can read accurately. The first time use it you don’t need to cal it! You need to cal it again if don’t use it for a long time.
  • Sensitive Electrode pH tester has a sensitive electrode sensor to read accurate ph levels. (Accuracy range: ±0.01) You can test the PH value for any 0-16 PH liquid.
  • Auto Temperature Compensation This pH measure built-in (ATC) automatic temperature compensation, it can accurately determine the pH value of the sample in a range of 0°C – 60°C (32°F – 140°F). So you don’t worry about temperature of the sample.
  • Healthy Lifestyle pH meter can tell you the acidity and alkalinity of water ensure health of drinking water and keep it in perfect pH balance, pH value of drinking water range of 6.5-8.5 to meet the EPA standards. You can test drinking water, swimming pools, aquariums, hydroponics, wine and beer and so on.
  • Notices After placing the pH acidity tester in water about 1 minute you can get the most accurate measurement data. In addition, if the water surface shakes will be affects measurement results. Please wash and dry the water in the PH meter after use, otherwise they will rust.


  • HIGH ACCURACY – pH & TDS Water Tester has a sensitive electrode sensor. The numbers on the pH meter range from 1.00 to 14.00, while the numbers on the digital EC and TDS meter range from 0 to 9990 ppm.
  • LCD BACKLIGHT DISPLAY – TDS Meter with red and green two-color backlight display, when the DTS value is greater than 40ppm, the green backlight display will change to red to alert you; pH Meter with green backlight, even if you use water pH tester at night, you can clearly see the value.
  • AUTO CALIBRATED – PH meter & TDS meter has built in (ATC) automatic temperature compensation, press CAL for 5 seconds to enter the calibration mode to give pH readings almost instantly. (Note: Included pH 4.01, pH 6.86, and pH 9.18 buffer powder)
  • COMPACT PORTABLE DESIGN – Mini pH and TDS Meter Combination have lightweight and compact, easy to cary to everywhere, and so convenient for you to take it in your pocket when you go out.
  • WIDE APPLICATION – PH Meter TDS Meter Combo perfect for accurate testing of drinking water, farm, aquarium, the fishing industry, swimming pool, school laboratories, hydroponic, spa, food & beverage, wine and beer etc.


BrandHM Digital
Assembled Product Weight0.8 lbs
Manufacturer Part Number4N-KW3E-4A2X
ManufacturerHM Digital
Assembled Product Dimensions (L x W x H)1.20 x 1.00 x 6.10 Inches

Prices of Digital Water Quality Tester:

$14.74 – $245.94

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