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Waterproof DO 450 Meter

Affordable optical RDO technology reduces maintenance time and costs

  Eliminates costly, tiresome membranes and solutions
  Rugged, IP67-rated housing for plant and field applications
  USB and RS-232 output for up to 500 data sets
  500 hours battery life, or optional universal power adapter
  Built-in stand with wall mount allows for easy benchtop measurement or storage

The RDO 450 meter uses optical measurement technology offering fast response times and long-term stability with minimal maintenance. Plus automatic temperature compensation (ATC), barometric pressure compensation, and salinity correction to further ensure measurement accuracy. The large, backlit LCD lets you view % saturation or mg/L (ppm) simultaneously with temperature.

Rugged, IP67-rated waterproof housing make the meter ideal for plant or field testing. Additional features include ready (stability) indicator, smart averaging, hold function, calibration alarm, and battery-life indicator.

Perform data logging with manual or timed collection of up to 500 data sets with real-time clock time/date stamp. Order optional data cables for USB and RS-232 connectivity.

Measures Dissolved oxygen, C/F
% saturationRange 0.0 to 200.0%
% saturationResolution 0.1%
% saturationAccuracy 2.0% full scale
mg/l (ppm)Range 0.00 to 20.00 mg/l (ppm)
mg/l (ppm)Resolution 0.1 mg/l (ppm)
mg/l (ppm)Accuracy 2.0% full scale
TemperatureRange -10.0 to 110.0C
TemperatureResolution 0.1C
TemperatureAccuracy 0.5C
TemperatureCalibration Offset 0.1 increments
ATC Automatic or manual
Memory Up to 500 data sets
Real Time Clock Yes
Salinity correction Range: 0.0 to 45.0 ppt; Resolution: 0.1 ppt; Method: Key in manually and automatic correction
Barometric pressure correction Range: 500 to 1499 mm Hg; Resolution: 1 mm Hg; Method: Key in manually and automatic correction
Optional AC Power Yes
Built-in Stand Yes
Dual Display Yes
Waterproof/Dustproof (IP67) Yes
Dimensions 7 7/8" x 3 1/8" x 2 1/4" (20 x 8.3 x 5.7 cm)
Shipping weight 1.4 lb (0.6 kg)


click on image to enlarge

Model # Description Suggested List Price Qty  
WD-35640-30 Oakton Waterproof DO 450 Meter and Probe $1194.50
WD-35640-34 Oakton Waterproof DO 450 Meter Only with NIST certification $649.00
WD-35640-31 Oakton Waterproof DO 450 Meter and Probe with NIST certification $1302.00
WD-35640-91 Oakton Waterproof DO 450 Meter Kit with NIST certification $1545.00
WD-35640-32 Oakton Waterproof DO 450 Meter Only $523.75
WD-35640-90 Oakton Waterproof DO 450 Meter Kit $1491.50

Other Accessories:
General Accessories
RDO Probe Accessories

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OAKTON Instruments P.O. Box 5136, Vernon Hills, Il USA 60061 info@4oakton.com