General description The Pool Salt Tester is a high-accuracy digital salinity meter designed for water testing. This multi-functional water quality tester is equipped with a backlit display for easy reading in various lighting conditions. Technical specifications Model Number: ez-9909 Conductivity measurement range: 0 to 10000 µS/cm TDS measurement range: 0 to 1000 ppm, 1000 ppm to 10000 ppm Salinity measurement range: 0.00 to 25.00% pH measurement range: 0.01 to 14.00 pH Accuracy: ±2% of the reading for conductivity and ±0.05 pH Resolution: 0.01% for salinity and 0.01 pH Material: Plastic Waterproof rating: IP67 Package Contents 1 x 5 in 1 Water quality tester (with backlight) 1 x English manual