General description The 5 in 1 High Precision Salinity Tester is designed for testing salt water quality with high accuracy. This multifunctional water quality tester features a digital display with backlight, making it easy to read in various lighting conditions. Technical specifications Model Number: ez-9909 Conductivity Meter: 0-10,000 µS/cm TDS Measurement: 0-1000, 1000-10000 Salinity Measurement: 0.00-25.00%, resolution: 0.01% pH Measurement: 0.01-14.00 pH, resolution: 0.01 pH, accuracy: ±0.05 pH Accuracy: ±2% of reading Material: Plastic Measurement allowed error: ±1-3 cm Package Contents 1 x 5 in 1 Water Quality Tester (with backlight) 1 x English Manual