FUYGRCJ- PH Test Meter Portable 4 in 1 PH EC TDS Temp Meter Digital DWC PH and EC PPM Water Tester with Green Backlit Battery Operated 1-19999PPM Meter for Water Beer DWC Hydroponic System(Backlight) - 20F7003T37Ro64RU70l51

• ** [Multipurpose] This test meter is suitable for DWC hydroponic systems, RO/DI water, drinking water, tap water, beer, milk, wine, kombu tea, aquariums, hot tubs, swimming pools, aquaculture and more. It can help you know whether water is in the optimal range. ** [Automatic Calibrate PH] This meter can automatically calibrate the pH value, which supports 6.86, 4.01, 9.18 three-point pH value calibration. It has pH meter calibration powder to meet your calibration needs (EC and TDS meters are pre-calibrated). ** [Large Display and Green Backlight] This PH EC TDS Temp meter has large display and green backlit, which can read the pH TDS EC meter at different angles and low light. Press the HOLD/TEMP key to lock the reading, convenient for recording data. ** [4 in 1 Digital Meter] This test meter can measure pH value, EC value (conductivity), TDS (total dissolved solids), and PH change during the hydroponics process. Just press the MODE/CAL key and switch the readings of pH, EC (μS/cm/ mS/cm), TDS (ppm). ** [Stable Reading] This meter has stable PH reading with additional chip. It can reduce the interference of mobile phones and other items on the instrument. The automatic temperature compensation (32-122 ℉) keeps the reading consistent., Manufacturer: FUYGRCJ