Hanna Instruments HI-9146 Water Resistant Portable Dissolved Oxygen Meter, Complete with DO probe

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The HI-9146 portable Dissolved Oxygen meter is a rugged water-resistant instrument offering an extended range for measuring Dissolved Oxygen and temperature.

Battery powered – Allows use away from a power source. Batteries are included with all battery operated products.Replaceable Electrode – No need to replace the whole meter when the electrode needs replacing. Spare and replacement electrodes are available for this product.
Price Upon Application Or Discontinued

Developed for dissolved oxygen and temperature measurement in water, wastewater and applications such as fish farming, it also allows compensation for altitude and salinity.

The HI-9146 is supplied with a Polarographic probe with a 4m cable and measures a DO range of up to 300%

Key features

  • 4m cable for ease of use
  • Robust waterproof casing designed for field applications
  • Backlit display is helpful for use in low ambient light levels
  • On-screen tutorial messages remove need to take manual out on location
  • Low battery indicator
  • DO range up to 300% plus temperature compensation
  • GLP features
  • Polarographic probe included as standard features built-in temperature compensation and removable, protective membrane cover

Main benefits

  • Allows altitude compensation up to 4000m
  • Salinity compensation up to 80g/L
  • Automatic calibration in air
  • Two spare membranes included as standard
  • Hard carrying case and instructions provided
    • SKU
  • Manufacturer
    Hanna Instruments Ltd
DO Range
0.00 to 45.00 mg/L; 0.0 to 300.0% saturation
DO Resolution
0.01mg/L (ppm); 0.1% saturation
Accuracy (@25°C)
±1.5% F.S. or ±digit, whichever is grater
Temperature Range
0.0 to 50.0°C
Temperature Resolution
Accuracy (@25°C)
Dissolved Oxygen Calibration
one or two points at 0% (HI-7040L Zero Oxygen solution 500ml) and 100% (in air)
Temperature Compensation
automatic, 0 to 50°C
Altitude Compensation
0 to 4000 m (resolution 100 m)
Salinity Compensation
0 to 80 g/L (ppt) (resolution 1 g/L)
HI-76407/4F polarographic DO probe, internal temperature sensor, DIN connector and 4m cable (included)
Battery Type/Life
1.5 AAA (3)/ approximately 200 hours of continuous use without backlight (50 hours with backlight on)
0 to 50°C (32 to 122°F); RH max 95%
185 x 72 x 36 mm (7.3 x 2.8 x 1.4")
300 g