Waterproof Portable Dissolved Oxygen Meter and BOD Meter - HI98193

In stock

The HI98193 is a rugged, portable dissolved oxygen (DO) meter designed for demanding applications. This professional, waterproof meter complies with IP67 standards and measures DO, barometric pressure, BOD and temperature. The HI98193 is supplied complete with all accessories to perform a DO measurement packaged into a durable carrying case.

• Waterproof IP67 rated waterproof, rugged enclosure

• Choice of units Display units in % saturation or mg/L (ppm)

• Salinity compensation Salinity compensation allows for direct determination of dissolved oxygen in saline waters. Users can set the salinity value

• Built-in temperature sensor Automatic temperature compensation with one or two point temperature calibration Displays temperature in °C or °F

• Built-in barometer Automatic barometric pressure compensation with 1 point calibration Displays pressure in user-selectable units (mmHg, inHg, atm, psi, kPa, mbar)

• Built-in calculations Determination of Biochemical Oxygen Demand (BOD), Oxygen Uptake Rate (OUR) and Specific Oxygen Uptake Rate (SOUR)

• Polarization Automatic polarization of probe at startup

• Membrane caps Ready-to-use preformed PTFE membrane caps

• 200 hour battery life Approximately 200 hours of continuous use

• Clear display Dot matrix display with multifunction virtual keys

• AutoHold Automatically holds the first stable reading on the display

• Calibration timeout Alerts when calibration is due at a specified interval

• PC Connectivity PC connectivity via opto-isolated micro-USB with HI92000 software

• Log-on-demand Store measurement data at the press of a button

• GLP GLP data provides calibration data including date, time, pressure, calibrated value, temperature and salinity value of the last calibration


For Universal Applications

The HI98193 is a portable DO meter with extended ranges of up to 50 ppm and 100% saturation. HI98193 features compensations for pressure, temperature and salinity, which are essential for an accurate dissolved oxygen reading. HI98193 is supplied with the HI764073 polarographic dissolved oxygen probe that utilizes field replaceable PTFE membrane caps.



BOD results

BOD is calculated in mg per liter from the difference between the initial and final dissolved oxygen concentration readings.



BOD parameters and records

All necessary parameters for BOD testing can be set and displayed at once. A list of all saved BOD data can be easily retrieved and shown on the LCD display.



OUR results

Measured in mg of oxygen consumed per L per hour.



SOUR results

Measured in mg of oxygen consumed per g of volatile suspended solids per hour.




Dissolved Oxygen 



0.00 to 50.00 mg/L (ppm); 0.0 to 600.0% saturation 


0.01 mg/L (ppm); 0.1% saturation 

Accuracy (@25°C/77°F) 

±1.5% of reading ±1 digit   


automatic one or two point at 100 % (8.26 mg/L) and 0 % (0 mg/L).; manual one point using a value entered by the user in % saturation or mg/L 

Atmospheric Pressure 



450 to 850 mmHg 


1 mmHg   

Accuracy (@25°C/77°F) 

± 3 mmHg within ±15% from the calibration point 


one point at any in range pressure value   




-20.0 to 120.0°C; -4.0 to 248.0°F 


0.1°C; 0.1°F 

Accuracy (@25°C/77°F) 

±0.2°C; ±0.4°F (excluding probe error)   


one or two point at any in range temperature value   

Additional Specifications 


Measurement Units 

direct DO; BOD (biochemical oxygen demand); OUR (oxygen uptake rate); SOUR (specific oxygen uptake rate)   

Barometric compensation 

automatic from 450 to 850 mmHg   

Salinity compensation   

automatic from 0 to 70 g/L   

Temperature compensation   

automatic from 0.0 to 50.0 °C (32.0 to 122.0 °F) 


HI764073 polarographic DO probe with protective sleeve, internal temperature sensor, DIN connector and 4m (13’) cable (included)  


log-on-demand up to 400 samples 

PC Connectivity   

opto-isolated USB (with HI92000 software) 

Battery Type   

1.5V (4) AA batteries / approximately 200 hours of continuous use without backlight (50 hours with backlight)   

Auto off   

user-selectable: 5, 10, 30, 60 min or can be disabled   


0 to 50°C (32 to 122°F); RH 100% IP67   


185 x 93 x 35.2 mm (7.3 x 3.6 x 1.4”) 


400 g (14.2 oz.)   

Ordering information   

All meters are supplied with: HI7040 bi-component zero oxygen solution (230 mL + 30 mL), HI7041S electrolyte solution (30 mL), preformed PTFE membrane caps (2), DO protective cap, O-rings (2), 100 mL plastic beaker (2), HI92000 PC software, HI920015 micro USB cable, 1.5V AA batteries (4), quick start guide, quality certificate and instruction manual in an HI720193 rugged carrying case with custom insert. HI98193 is supplied with HI764073 polarographic DO probe with protective sleeve and 4m (13') cable. HI98193/10 is supplied with HI764073/10 polarographic DO probe with protective sleeve and 10m (33') cable. Accessories HI710034 orange protective rubber boot