Waterproof CyberScan DO 300 Dissolved Oxygen Meter (Backlit) with 3m cable electrode,

- 1 assembled membrane cap housing, 1 refilling electrolyte & carrying kit set(ECDOWP30001K) (01X262307)Specifications :Dissolved Oxygen Range 0 to 19.9 mg/l or ppm Resolution & Accuracy 0.01 mg/l, 0.1 ppm & +/-1.5% Full Scale % Saturation of Oxygen 0.0 to 199.9 % Resolution & Accuracy 0.1 % & +/-1.5% Full Scale Temperature Range 0.0 to 50.0 °C (32.0 to 122 °F) Resolution & Accuracy 0.1 °C (0.1 °F) & +/- 0.3 °C (0.5 °F) Salinity Correction 0.0 to 50.0 ppt Barometric Pressure Correction 500 to 1499 mm Hg or 66.6 to 199.9 kPA Method Manual input for automatic correction No. of DO Calibration Points Up to 2 points, 100% in air and/ or 0% in known solution Temperature Compensation Automatic / Manual (0 to 100 °C) Back-lit Display Yes Memory 50 data sets Special Functions Stability Indicator, Self-diagnostic, Electrode characteristics, Hold & Auto-Power Off after20 minutes Power 4 `AAA` x 1.4V batteries