Orion Star A122 Conductivity Portable Meter

  • Low Range Conductivity Applications Conductivity measurement range from 0.1 uS/cm to 200 mS/cm
  • Non-Volatile Memory Memory capacity to store up up 50 time and date stamped data points
  • Warranty A122 come with a three year replacement meter warranty
Product Options


The Orion Star A122 Handheld Conductivity Meter is visually very clear and easy to use. The built in large LCD displays meter mode and battery life, conductivity or TDS readings along with temperature in °C or °F.

Selectable reading reference temperatures of 20°C and 25°C give an accurate result. Updates on battery life and completed calibration status are easy to access through simple button layouts and onscreen messages which help with setup menu and calibration choices. Manual calibration comes as standard with the Orion Star A122 Conductivity Portable Meter with the option to purchase an automatic calibration option separately.

The Orion Star A122 Handheld Conductivity Meter is portable, waterproof and the IP67-rated housing makes it protected to use in any location making this a versatile piece of equipment.

Other features that enhance this meter are AUTO-READ™ which locks in stable readings on screen and the ready indicator alerts the user when readings are stable. Plus a built in memory capacity to hold 50 data points. Powering the handheld conductivity meter is also versatile with the option to operate from four AA batteries which give over 2000 hours of operation, or the universal power adapter available to purchase separately which enables the Orion Star A122 Conductivity Meter to run on AC power. There is a standard 3 year meter replacement warranty complete with this meter.

Manufactured by: Thermo Scientific
Model: Orion Star A122 Conductivity Portable Meter

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Low range conductivity measurement
Drinking water applications


Range 0.1 µS/cm to 200 mS/cm
Resolution 0.01 µS minimum;
3 significant figures minimum
Relative Accuracy 0.5 % reading ±1 digit
20, 25 °C (default)
Linear (0.0 to 10.0 %/°C)
Cell Constants
0.001 to 10
Number of
Calibration Points
Range 1 to 19,999 mg/L
Resolution 4 significant digits
Relative Accuracy 0.5 % reading ±1 digit
TDS Factor Range Linear 0.01 to 10.00,
default 0.49
Range -5 to 105 °C, 23 to 221 °F
Resolution 0.1
Relative Accuracy ±0.1
Temperature Offset Calibration Yes
Number of Points 50
Log Function Manual, Automatic with AUTO-READ™
Log Edit Delete last reading or all
Conductivity 8-pin mini-DIN
AC Adapter Optional universal, 100-240 VAC
Battery Power Included 4 AAs
Battery Life 2000 hrs


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