Dissolved Oxygen Meter Dissolved Oxygen Range 0 to 20 mg/L Oxygen Concentration 0 to 100 Percent Waterproof No Automatic Temperature Compensation Yes Displayed Temperature Range 0 Degrees to 50 Degrees C 32 Degrees to 122 Degrees F Operating Temp Range (F) 32 Degrees to 122 Degrees Operating Temp Range (C) 0 Degrees to 50 Degrees Display Dual LCD Auto Power Off Yes Temperature Compensation Range 0 Degrees to 50 Degrees C Calibration Fresh Air Cable Length 4 m