Oakton pH450 (Single)
pH450-CON 450 Brochure/Specifications
pH450-PC450-PD450 Operation Manual
Oakton (pH, ORP, Temp) pH450 Meter $33.75 $78.75 $225

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.


  • 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


Measures: pH, ISE, mV, °C/F 
pH Range:  -2.00 to 16.00 pH
pH Resolution: 0.01 pH
pH Accuracy: ±0.01 pH
pH Calibration: 6 points: USA, NIST, DIN, PWB, custom buffers
mV Range: +/- 2000 mV
mV Resolution: 0.1 to 1 mV
mV Accuracy: +/-0.2 mV+/- 2 LSD or +/-5% of reading; whichever is greater
mV Calibration: +/- 200 mV
Ion Range: 0.0 to 19999
Ion Resolution: 0.01
Ion Accuracy: +/-0.5% ful-scale (monovalent); +/-1.0% full-scale (divalent)
Ion Calibration: Up to 6 points
Temperature Range: -10.0 to 100.0°C
Temperature Resolution: 0.1°C
Temperature Accuracy: ±0.1°C
Temperature Calibration: Offset 0.1°C 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)