Hanna Instruments HI9147-04 DO Meter Galvanic Dissolved Oxygen Meter

Oxygen, Dissolved Range 0.00 to 50.00 ppm (mg/L); 0.0 to 600.0% saturation Oxygen, Dissolved Resolution 0.1 mg/L (ppm); 1% saturation Oxygen, Dissolved Accuracy ±1% of reading Oxygen, Dissolved Calibration manual, in saturated air Oxygen, Dissolved Temperature Compensation automatic from 0 to 50°C (32 to 122°F) Salinity Compensation 0 to 51 g/L (ppt) (1 g/L resolution) Altitude Compensation 0 to 4000 m (resolution 100 m) Temperature Range 0.0 to 50.0°C / 32.0 to 122.0°F Temperature Resolution 0.1°C; 1°F Temperature Accuracy ±0.2°C; ±1°F (excluding probe error) DO Probe galvanic DO probe, internal temperature sensor, DIN connector Battery Type/Life 1.5V AAA (3) / approximately 1000 hours of continuous use without backlight Environment 0 to 50°C (32 to 122°F); RH max 95% non-condensing Dimensions 185 x 72 x 36 mm (7.3 x 2.8 x 1.4”) Weight 450 g (15.9 oz.)