5-in-1 pH Meter: pH/TDS/EC/Salinity/Thermometer, LCD, Automatic Temperature Compensation, for Drinking Water and Aquariums

5-in-1 pH Tester: This tester can measure pH, salinity, EC, TDS, and temperature. Simply press the (MODE/CAL) button to switch between pH, salinity, EC, and TDS values. A long press on the HOLD/TEMP button allows you to switch between temperature readings in degrees Celsius. Used for daily water quality monitoring, it allows you to know the water quality status at any time. Automatic Temperature Compensation: This pool pH meter does not need to take the temperature of the liquid being measured into account. This instrument is capable of making accurate measurements over a temperature range of 0°C to 60°C (32°F to 140°F), thus eliminating the problem of inaccuracies due to liquid temperature variations. Whether it's winter or summer, you can obtain accurate readings. Human-scale design: The backlight function of this EC tester allows you to clearly see the data even in low-light conditions. The HOLD/TEMP button can be used to lock the reading, and the backlight turns off after 30 seconds. Press any button to turn the backlight back on. Easy calibration: The pool tester supports 3-point automatic calibration and can be easily calibrated automatically at 4.01, 6.86, and 9.18 following the instruction manual. The device has been factory calibrated and is ready to use upon receipt. If recalibration is necessary, you no longer need to worry about finding a calibration solution (the box is equipped with a calibration kit). Multiple uses: Aquarium TDS meters allow you to measure saltwater, used in swimming pools, spas, aquariums, and aquaculture. The pH/EC meter can measure the EC and pH of hydroponic crops. TDS and pH meters can measure liquids such as permeate water, drinking water, tap water, coffee, fruit juice, brewed wine, and beer.