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Customer Support: (800) 842-6629

Portable Galvanic Dissolved Oxygen Meter - HI9147



In stock


In stock


In stock

The HI9147 is a rugged, water-resistant dissolved oxygen (DO) meter designed for aquaculture applications. The meter and probe use galvanic sensor technology where the electrodes’ potential difference drives the reaction, requiring no external voltage. Oxygen diffuses across the membrane and the system establishes a current proportional to the concentration of dissolved oxygen present. HI9147 comes with a galvanic, HDPE membrane caps, electrolyte fill solution, a protective shield, and sturdy carrying case. 

  • Easily Replaceable Membrane Caps
  • Manual Calibration
  • Galvanic Measuring System
  • DIN Connector



Galvanic Measuring System, requiring no external voltage

Silver cathode and zinc anode in an electrolyte solution with a polymer membrane

Automatic calibration at one or two points to 100% and/or 0% saturation

Automatic Temperature Compensation (ATC) using a high-accuracy, built-in, linearized, thermistor temperature sensor

Altitude compensation up to 4000 meters with a 100-meter resolution

Salinity compensation is adjustable from 0 to 51 g/L (ppt) with a 1 g/L resolution for the measurement of DO in brackish and sea water

Auto end point mode freezes a reading on the display once a stable measurement is obtained

Good Laboratory Practice allows users to recall calibration information

Replaceable, pretensioned, polytetrafluoroethylene (PTFE) membranes with a screw cap design

Additional information

Weight 0.91 kg

Dissolved, Oxygen

Temperature Accuracy

±0.2°C; ±1°F (excluding probe error)

Temperature Range

0.0 to 50.0°C / 32.0 to 122.0°F


SKU HI9147-web
Name Portable Galvanic Dissolved Oxygen Meter – HI9147
Dissolved Oxygen Range 0.00 to 50.00 ppm (mg/L); 0.0 to 600.0% saturation
Dissolved Oxygen Resolution 0.1 mg/L (ppm); 1% saturation
Dissolved Oxygen Accuracy ±1% of reading
Dissolved Oxygen Calibration manual, in saturated air
Dissolved Oxygen 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.)

Ordering Info

HI9147 is supplied complete with HI76409 probe, HI76409A/P pre-formed HDPE DO membranes (2), HI7042S electrolyte solution (30 mL), batteries, instructions and rugged carrying case


Portable Galvanic Dissolved Oxygen Meter – HI9147