Water and Soil Analysis Kit It is used to check the pH, Temperature, Dissolved Oxygen, TDS, ORP (mV), Conductivity Technical Specifications Display 3 ½ digit LCD Display Power Supply 6 dry cells of 1.5V OR 230±10PHz pH Range 0 to 14 pH Temp. Comp 0-100°C Resolution 0.01pH Accuracy ±0.01pH ± 1 digit Conductivity Range 0-20ms, 0-200 Cell Constant Pre-Adjustable Resolution 0.1 µmhos Accuracy ±05% FS ± 1 digit Temperature Range 0-100°C Resolution 0.1 Accuracy ±0.1°C ± 1 digit TDS Range 0-20ppt, 0-200ppt Cell Constant Pre-Adjustable Resolution 0.1ppm Accuracy ±5% FDS ±1 digit D.O. Range 0-20ppm Resolution 0.1ppm Accuracy ±0.01C ±1digit Temp. Comp 05°-50°C (Manual) mV (ORP) Range 0 to ± 1999 mV Resolution 1 mV Accuracy ±1 mV Calibration MANUAL Standard Accessories 1) pH Electrode 2) Standard Solution 7.0 pH & 4.0 pH 3) Temperature Probe 4) Conductivity/TDS/Salinity Cell 5) DO Probe 6) Instruction Manual 7) ORP Electrode (On Demand)