Multifunctional 8-in-1 Salinity Tester The salt water tester with 8 in 1 function,just press the {MODE/CAL} key,you can switch to measure can measure PH, TDS, EC, ORP, S.G, Salinity, H2 and temperature at the same time. The upgraded sensor head with high electrode sensitivity enables accurate and fast measurement of liquid values. High Accuracy Digital pH MeterPH measurement 0-14, TDS 0-200000ppm,EC 0-200000/cm,Salinity 0-20%,ORP 1999MV,H2 0-2400PPb,S.G 1.000-1.222,temperature 0-60/32-140. Backlit LCD Design guarantees that you can read the measuring results in any condition. One-button lock reading function helps lock reading. LCD DisplayThe screen of the digital water meter adopts LCDwhich clearly displays the data with backlight. LCD has lock and auto-shut off function, which makes the PH meter save more energy and enhance service life. Widely usedThe Multi parameter Water quality tester is lightweight and small enough for you to carry it around with you. Capable of measuring a wide range of parameters is the ideal test kit for home and laboratory uses. The smart water tester is very suitable for drinking water, pools, aquariums, hydroponics, greenhouse plants,liquid fertilizers. Wide Application The water tester is suitable for various water environments, including swimming pools, aquariums, hot tubs, and spas. Whether you are a pool owner, aquarium enthusiast, or spa lover, this testing kit is essential for maintaining water quality and ensuring a comfortable experience. How to use 1.Press the power button2.Press the Mode/Calibration to select the mode3.Immerse the Electrode in the measured liquid.(Can not be over the max immersion line)4. Wait for 6-10 seconds and then press the Hold button to make the reading stabilized.5.If you want to test different types of water at once, please clean electrode with pure water and wipe it dry.