General description The 5-in-1 High Precision Salt Water Salinity Tester is a multifunctional water quality tester designed for accurate measurement of various parameters including conductivity, TDS, salinity, and pH levels. It features a digital display with backlight for easy reading, making it suitable for both professional and personal use. Technical specifications Model Number: ez-9909 Conductivity Meter: 0-10000 µS/cm TDS Measurement: 0-1000, 1000-10000 ppm Salinity Measurement: 0.00-25.00% pH Measurement: 0.01-14.00 pH Accuracy: ±2% of reading for conductivity; ±0.05 pH for pH measurement Resolution: 0.01% for salinity; 0.01 pH for pH measurement Material: Plastic Package contents 1 x 5 in 1 Water Quality Tester (With Backlight) 1 x English Manual Other information Note: Light and different displays may cause the color of the item in the picture to differ slightly from the actual color. The measurement allowed error is +/- 1-3 cm.