Product Code: HI9147-04
The Hanna HI9147 Portable Dissolved Oxygen Meter is a rugged, water-resistant galvanic dissolved oxygen (DO) meter designed for accurate dissolved oxygen measurement in environmental, aquaculture, wastewater, and other water-quality applications. The HI9147 measures dissolved oxygen from 0.0 to 50.0 mg/L (ppm) and 0 to 600% saturation, while also measuring temperature from -5.0 to 50.0°C.
The HI9147 uses a galvanic dissolved oxygen probe with a replaceable HDPE membrane. Oxygen passes through the permeable membrane and produces an electrical current proportional to the dissolved oxygen concentration. The built-in thermistor provides automatic temperature compensation, while adjustable salinity compensation allows the meter to be used in freshwater, brackish water, and seawater.
A manual one-point calibration is performed in air-saturated water or saturated air, and the meter provides altitude compensation for elevations up to 4,000 m. Salinity compensation can be adjusted from 0 to 51 g/L (ppt), making the HI9147 particularly useful for aquaculture and marine water-quality applications.
Manufacturer Flyer (pdf)
| Dissolved Oxygen Range |
0.0–50.0 mg/L (ppm) |
| DO Saturation Range |
0–600% |
| DO Resolution |
0.1 mg/L or 1% saturation |
| DO Accuracy |
±1% of reading |
| DO Calibration |
Manual, in saturated air |
| Temperature Range |
-5.0–50.0°C (23–122°F) |
| Temperature Resolution |
0.1°C / 1°F |
| Temperature Accuracy |
±0.2°C / 1°F, excluding probe error |
| Temperature Compensation |
Automatic |
| Salinity Compensation |
0–51 g/L (ppt), 1 g/L resolution |
| Altitude Compensation |
0–4,000 m, 100 m resolution |
| Probe |
HI76409 galvanic DO probe |
| Membrane |
HI76409A/P pre-formed HDPE membrane |
| Battery Life |
Approximately 1,000 hours without backlight |
| Operating Environment |
0–50°C; maximum 95% RH, non-condensing |
| Dimensions |
185 × 72 × 36 mm |
