Dissolved Oxygen Meters

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Dissolved Oxygen Meters

Milwaukee Mi190 Extended Range Bench Dissolved Oxygen Meter

The Mi190 is ideal for testing Dissolved Oxygen in the pharmaceutical and food industry, as well as monitoring in water treatment plants. The user can choose to measure D.O. readings in mg/L or % of saturation of O2.
This mater can be used for ant type of water, as is allows measurements to compensate for temperature, altitude and salinity factors. The automatic logging interval can be used to perform analysis and store data into the memory.
All logged data can be downloaded to the user’s PC through an RS232 or USB serial port. Memory can store up to 50 samples. The Mi190 features an automatic calibration procedure at 1 or 2 points (at 0 and 100% of O2 saturation). The polarographic probe supplied with the meter (MA840/2) measure the current generated by the reaction of O2  with Ag.
Ordering information:
Mi190 is supplied complete with:
  • MA840/2 Polarographic D.O. probe with 2 metre cable
  • MA841 Spare membrane
  • MA9071 Electrolyte solution
  • MA9315 Electrode holder
  • Mi5200 Application software
  • MA9350 RS232 connection cable with 2 metre cable
  • 12 VDC adaptor
  • Instruction manual

Range         O2
                              % saturation O2
0.0      to 45.00 mg/L (ppm)
0.0 to 300%
1.0 -5.0 to 55.0°C / 23.0 to 131.0°F
Resolution   O2
                      % saturation O2
0.1 mg/L (ppm)
0.1°C / 0.1°F
Accuracy     O2
                      % saturation O2
± 1.5 full scale
± 1.5 full scale
± 0.4°C / ± 0.8°F
50 records, LOG on demand or auto-logging
D.O. calibration
automatic, 1 or 2 point at 0% (MA9070) and 100% (in air)
Temperature compensation
0.0 to 50.0°C / 32.0 to 122.0°F
Altitude compensation
0 to 4000 metre; 100 metre resolution
Salinity compensation
0 to 40 g/L; resolution 1 g/L
D.O. probe
MA840/2 with DIN connector (included)
Temperature probe
Included in D.O. probe
2 points (0.0°C to 50.0°C / 32.0 to 122.0°F
Log on demand
up to 50 records
PC interface
RS232 / USB Opto-isolated
Power supply
12 VDC power adaptor (included)
0 to 50.0°C / 32.0 to 122.0°F; max. RH 100%
230 x 160 x 95 mm.
0.9 kg.


Zero oxygen solution, 230ml. bottle
Refilling electrolyte solution, 230ml. bottle
12 VDC adaptor, 220 V
12 VDC adaptor, 110 V
Electrode holder
Spare membrane (5 pieces)
D.O. probe with 2 metre cable
RS232 connection cable with 2 metre cable
Application software

Jenway Model 9500

Dissolved Oxygen meter supplied with DO2 probe with ATC (522 008), electrode holder, UK power supply, condensed operating instructions and instruction manual.

  • % or oxygen concentration display modes
  • Full support for B.O.D. 5-day test
  • Security code protected user data
  • Calibration data status display
  • Calibration reminder
  • Reading memory - 250 results plus 20 B.O.D. tests (up to 10 samples per test)
  • Comprehensive data logging options
  • Alarm outputs (open collector and audible)

The Model 9500 is a fully specified dissolved oxygen meter that includes full support for the B.O.D 5-day test protocol. Powerful data logging capabilities are included with the ability to store up to 250 results plus 20 B.O.D. tests (up to 10 samples per test) either manually, at timed intervals or alarmed events. Remote monitoring and data collection is facilitated by the provision of both analogue and digital outputs and in the event of power removal all user defined parameters are retained.


  • DO2 Ranges: 0 to 199%, 0 to 25.0%, 0 to 19.99mg/l
    • Resolution: 1% / 0.1% / 0.01mg/l
    • Accuracy: ±2% within 10°C of calibration temperature
  • Temperature ranges: -10 to +60°C / 14 to 140°F
    • Resolution: 0.1°C / 1°F
    • Accuracy: ±0.5°C / ±1°F
  • ATC range: 0 to 60°C / 32 to 140°F
  • Manual Temp. Comp.: 0 to 60°C / 32 to 140°F
  • Calibration: Automatic
  • Outputs: Analogue 1mV per digit / RS232 serial and IrDA printer interface / Alarm
  • Clock: 24 hours, hrs/min/sec or day of month/month/year, leap year corrected (European and American formats)
  • GLP: Calibration reminder interval (1 to 999 hours)
  • Alarm outputs (open collector and audible)
  • Security code protected user data
  • Display: Back lit 1/8 VGA monochrome LCD
  • Language Options: English, French, German, Italian, Portuguese and Spanish
  • Power: Battery eliminator
  • Size: 250(l) x 210(w) x 55(d) mm
  • Weight: 850g

HI-2400 Extended range and logging bench top Dissolved Oxygen meter

  • Extended reading ranges
  • Reads in mg/l and % oxygen
  • Altitude and salinity compensation
  • Auto logging of upto 8000 samples
  • RS232 link
  • Calibration in saturated air

An accurate yet simple to use bench top dissolved oxygen meter, with a large LCD display reading mg/l, % saturation, and temperature. Calibration can be performed at one, or two points, and readings can be compensated for salinity, altitude, and has auto-temperature compensation. Up to 8000 readings can be logged, and results can be downloaded to PC via RS232 link. Supplied with DO probe, spare membrane, electrolyte solution and power supply. Unit has a 2-year guarantee.


Range mg/l

% Saturation


0.00 to 45.00

0.0 to 300.0

0.0 to 50.0 °C

Resolution mg/l

% Saturation





Accuracy mg/l

% Saturation


±1.5% full scale

±1.5% full scale



Single or double at 0% and 100%


0 to 4000m


0 to 40 g/l


240 x 182 x 74 mm


1.2 Kg


  • HI-7040 Zero oxygen test solution 460ml
  • HI-7041S Probe refill electrolyte 30ml
  • HI-76407/2 Replacement probe 2m cable
  • HI-76407A/P Replacement membranes pack of 4
  • HI-92000 Windows® Software
  • HI-920010 PC communication cable

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