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Waterproof pH/DO 450 Meter

Affordable optical RDO technology reduces maintenance time and costs

  Durable waterproof and dustproof design with IP67 rating
  Eliminates costly, tiresome membranes and solutions
  Barometric pressure and salinity correction
  USB and RS-232 output for up to 500 data sets
  Built-in stand allows for easy benchtop use
  500 hours battery life, or optional universal power adapter

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

Rugged, IP67-rated waterproof housing makes 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 cable for USB and RS-232 connectivity.

Measures pH, mV, DO, C/F
pHRange -2.00 to 16.00
pHResolution 0.01
pHAccuracy +/-0.01
pHCalibration 6 points; USA, NIST, DIN, PWB, and custom buffers
mVRange +/- 2000
mVResolution 0.1 to 1
mVAccuracy +/-0.2 to 2 mV
mVCalibration Offset available
% saturationRange 0 to 200%
% saturationResolution 0.1
% saturationAccuracy +/- 2%
mg/l (ppm)Range 0 to 20 mg/L
mg/l (ppm)Resolution 0.1
mg/l (ppm)Accuracy +/- 2%
Salinity correction Manual 0 to 45
Barometric pressure correction Manual correction
TemperatureRange -10 to 110
TemperatureResolution 0.01
TemperatureAccuracy +/-0.5
TemperatureCalibration offset available
ATC Automatic and manual
Power 2 AA batteries, or optional power supply
Memory 500 data sets
Real Time Clock Yes
RS-232 Yes and USB
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 lb (0.5 kg)


click on image to enlarge

Model # Description Suggested List Price Qty  
WD-35632-80 Oakton Waterproof pH/DO 450 Meter Kit $1858.00
WD-35632-34 Oakton Waterproof pH/DO 450 Meter Only with NIST certification $1253.00
WD-35632-31 Oakton Waterproof pH/DO 450 Meter with Probe with NIST certification $1977.00
WD-35632-81 Oakton Waterproof pH/DO 450 Meter Kit with NIST certification $2085.00
WD-35632-30 Oakton Waterproof pH/DO 450 Meter with Probe $1710.00

Other Accessories:
pH Calibration Solutions
All in One pH Electrodes: Waterproof Series
RDO Probe Accessories

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