Azzota® Benchtop Advanced pH/ORP Meter (A120 Model)

Professional benchtop pH meter, 7 inch TFT display, stores up to 1000 data sets, setup menu contains 17 options, accuracy: 0.002pH.


  • Auto-Read function senses and locks the measurement endpoint.
  • Timed Interval Readings send the measurement data to a PC or printer.
  • Limit Alarm automatically alerts when reading exceeds the specified range.
  • Calibration due to the alarm prompts users to calibrate the meter regularly.
  • The calibration report shows the date, time, pH slope, and offset.
  • Password protection prevents unauthorized calibration and settings.
  • Expanded memory stores or recalls up to 1000 data sets.
  • The reset function automatically resumes all settings back to the factory defaults.
  • Can use external Printer for date print

PH Mode

  • A professional benchtop pH meter is equipped with a 7-inch TFT display.
  • 1 to 5 points calibration with automatic recognition for USA, NIST, and DIN buffers.
  • Automatic temperature compensation ensures accurate readings over the entire range.
  • The solution temperature coefficient compensates for the pure water samples and references the pH to 25°C.

ORP Mode

  • 1-point offset calibration allows adjusting the displayed value to a known standard.
  • Relative and absolute millivolt modes ensure reliable ORP measurements.

Packing list

  1. PHORP-A120 Meter
  2. E201-BNC pH electrode
  3. TP-10K temperature probe
  4. pH4.01/7.00/10.01 buffer
  5. DC12V power adapter






-2.000 to 20.000pH


0.001, 0.01pH, selectable



   Calibration Points

1 to 5 points

   pH Buffer Options

USA, NIST, DIN, 5 custom buffers








   Calibration Points

1 point

   Measurement Modes

Relative or absolute mV



0 to 105°C/32 to 221°F





   Offset Calibration

1 point

   Calibration Range

Reading ±10°C

   General Specifications

   Temperature Compensation

0 to 100°C/32 to 212°F, manual or automatic

   Stability Criteria


Standard or high-accuracy

   Calibration Due Alarm


1 to 31 days or off

   Interval Readings


10, 30, 60 seconds, 10, 30 minutes or off

   Password Protection


4 digits



Stores up to 1000 data sets



USB communication interface



BNC, 3.5mm jack socket






DC12V, using AC adapter






4 lbs