LuoLeiNa pH Meter for Water and Tds Meter, 0.01 High Accuracy Lab pH Tester, pH Tester Digital Pen for Water，pH & Tds Meter Combo 4 in 1 pH TDS EC Temperature Meter

Key features

• 【Accurate & reliable】PH Pen measure range of pH 0 - 14, reliable and quick readings. 3-in-1 TDS Meter: Measurement Range 0-9990ppm; Accuracy ± 2%, 0.1- 80.0°C, 32.0-176.0°F. Note: This meter can't test sea water
• 【Portable Design】: Comes with protective case; Lightweight, handheld design for portability and convenience,The mini PH and TDS meter combo allows you to easily put it in your pocket and measure it at anytime, anywhere.
• 【Easy to Calibrate pH pen】Press CAL for 5 seconds to enter the calibration mode, then press in turn to select the powders corresponding to 6.86, 4.01, and 9.18 to complete the calibration,It only takes a few seconds to show accurate and stable reading for the result to appear on screen.
• 【LCD Digital Display 】Backlight function allows you to see the screen even in the dark
• 【Widely Application】Good Choice for Household and Laboratory TDS & pH testing and commercial use,including test swimming pools;Hydroponic;Drinking water;Aquarium aquaculture;Tap water