8-in-1 Digital Water Quality PH Test Pen TDS/EC/PH/ORP Thermometer Analysis Instrument Hydrogen-Rich Drinking Water Tester Description: Name: 8-in-1 Backlit Water Quality Test Pen Function: Salinity/SG/PH/H2/TDS/ORP/ EC/TEMP size: 178*26mm Measuring range: 1. PH 0-142. TDS value 0-200000ppm3． EC value 0-200000/cm4． Salinity 0-20%5. ORP negative potential 1999MV6. H2 hydrogen rich 0-2400PPb7. SG seawater specific gravity 1.000-1.2228. Temperature 0-60 Specifications: 8-in-1 water quality tester digital pH tester has the function of monitoring salinity/SG/PH/H2/TDS/ORP/EC/TEMP measurement. High Accuracy - Our digital water pH tester's precision algorithm chip and electrodes ensure accurate and fast response. When the measured value is stable, just press the HOLD/TEMP key to lock the measured value and take it out for viewing. It is very simple. Two salinometer digital pH meters can detect the salinity of table salt. It can also detect the salinity of seawater. Food salinity measurement range: 0.00-20.00%, SG seawater specific gravity 1.000-1.222 Automatic power-off function and large-screen display The pH tester has a backlit LCD screen, which can help you see the measurement results clearly under any circumstances. Temperature measurement: Long press to switch temperature units, short press to save data. Package contains: 1* digital water quality PH test pen 4* buffer powder