DO Meter HANNA HI9146



DO Meter HANNA HI9146 is a rugged, portable dissolved oxygen (DO) meter designed to provide laboratory precision and accuracy under harsh environmental and industrial conditions. Developed for measuring dissolved oxygen in water, wastewater, and environmental testing, this meter can also compensate for altitude and salinity.

  • Robust waterproof casing makes it ideal for field use.
  • Setup and calibrate your meter in no time with 1 point calibration.
  • Perfect for water and wastewater monitoring, environmental, and aquaculture applications.


Dissolved oxygen is a commonly measured parameter in aquaculture, wastewater treatment, environmental studies, and wine analysis.

The HI9146 is a rugged, portable dissolved oxygen (DO) meter designed to provide high accuracy measurements whether in the field or in the lab.

The meter features automatic calibration performed at one or two points in saturated air and/or zero oxygen solution.

All readings are automatically compensated for temperature variations and can be frozen on the display upon stability using the auto-end feature.

Salinity and altitude compensation are user adjustable based on the environmental conditions that are present.

The HI9146 features a Battery Error Prevention System (BEPS) that detects when the batteries become too weak to ensure reliable measurements.

The HI9146 portable DO meter is supplied complete and ready to use.

Specifications DO Meter HANNA HI9146 :

DO Range0.00 to 45.00 ppm (mg/L), 0.0 up to 300.0% saturation
DO Resolution0.01 ppm (mg/L); 0.1% saturation
DO Accuracy (@25ºC/77ºF)±1.5% F.S. or ±1 digit, whichever is greater
DO Calibrationone or two points at 0% (HI 7040 solution) and 100% (in air)
Temperature Range0.0 to 50.0°C / 32.0 to 122.0°F
Temperature Resolution0.1°C / 0.1°F
Temperature Accuracy (@25ºC/77ºF)±0.2°C; ±0.4°F (excluding probe error)
Temperature Compensationautomatic from 0 to 50°C (32 to 122°F)
Altitude Compensation0 to 4000 m (resolution 100 m)
Salinity Compensation0 to 80 g/L (ppt) (resolution 1 g/L)
Electrode/Probepolarographic DO probe, internal temperature sensor, DIN connector
Battery Type/Life1.5V AAA (3) /approximately 200 hours of continuous use without backlight (50 hours with backlight on)
Environment0 to 50°C (32 to 122°F); RH max 95%
Dimensions185 x 72 x 36 mm (7.3 x 2.8 x 1.4”)
Weight300 g (10.6 oz.)
Ordering InformationHI9146 is supplied complete with HI76407 DO probe, HI76407A pre-formed PTFE DO membranes (2), HI7041S electrolyte solution (30 mL), batteries, instructions and rugged carrying case.
Warranty2 years (probe 6 months)


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