Save time and money with one handy meter that does the work of two. Easy to use and calibrate, the Hanna Soil and Liquid Conductivity Meter offers rapid, accurate measurements and even measures salt activity. Includes soil probe and liquid probe. Range: 0.00 to 19.99mS/cm; 0.0 to 1.0g/L of salt activity. Resolution: 0.01mS/cm; 0.01g/L of salt activity. Accuracy: ±2% F.S. (from 0 to 15.00mS/cm, excluding probe error). Has a battery life of 100 hr. of continuous use and measures 1.8"H x 3.2"W x 7.3"L.