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Handheld pH/Mv Meter
Oakton Waterproof pH 450 Meter

USA Toll Free: 1-800-730-0302 Tel: 416-240-1920 -

Handheld pH/Mv Meter Oakton Waterproof pH 450 Meter

Backlit, rugged waterproof meter is ideal for any environment!

  • Intuitive, user-friendly icons--electrode status displays pH slope

  • Grip-Clip electrode holder quickly and easily secures electrode to side of beaker or container

  • USB or RS-232 output for up to 500 data sets

  • Extended battery life or optional universal power adapter

  • Built-in stand with wall mount option allows for easy benchtop measurement or storage

The pH 450 meter offers an IP67-rated waterproof housing, making it ideal for the manufacturing floor, field testing, and the laboratory. The large, backlit LCD lets you view the main measurement simultaneously with temperature and calibration data with % slope. Calibrate pH and ISE with up to six points from USA, NIST, DIN, PWB and custom pH buffers. Automatic temperature compensation (ATC) ensures measurement accuracy even in fluctuating temperatures. Select temperature reading from degree C or degree F to suit your application.

Meter features include ready (stability) indicator, smart averaging, hold function, calibration alarm (visible), battery-life indicator, and electrode status.

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 or RS-232 connectivity.

Oakton pH450 Meter Manual


Measures pH, ISE, mV, ºC/F
pHRange -2.00 to 16.00 pH
pHResolution 0.01 pH
pHAccuracy +/-0.01 pH
pHCalibration 6 points: USA, NIST, DIN, PWB, custom buffers
mVRange +/- 2000 mV
mVResolution 0.1 to 1 mV
mVAccuracy +/-0.2 mV+/- 2 LSD or +/-5% of reading; whichever is greater
mVCalibration +/- 200 mV
IonRange 0.0 to 19999
IonResolution 0.01
IonAccuracy +/-0.5% ful-scale (monovalent); +/-1.0% full-scale (divalent)
IonCalibration Up to 6 points
TemperatureRange -10.0 to 100.0ºC
TemperatureResolution 0.1ºC
TemperatureAccuracy +/-0.1ºC
TemperatureCalibration Offset 0.1ºC increments
ATC Automatic or manual
Power Two AA batteries or optional AC adapter
Memory 500 data sets with calibration
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)



About Us

Metex Corporation Limited has been providing superior products and services to the process control, chemical treatment, waste water, industrial and manufacturing industries for over 25 years. It is our goal to continually provide our customers with the best possible equipment, technology, and service.


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