A212 Conductivity Benchtop Meter

  • IP54 Rated Housing Capable of withstanding splashes
  • Warranty This product comes complete with a three year replacement warranty
  • User Friendly Simple screen prompts
Product Options


The Orion Star™ A212 Conductivity Meter features selectable cell constant enabling use with two or four conductivity cells along with selectable reading reference temperatures of 5, 10, 15, 20 or 25° with linear, nonlinear, nLFu or EP curve options all for the purpose of gathering accurate results. Linear or ISO/EN 27888 curves for TDS and a choice of practical salinity or natural sea water curves for salinity readings.

There are many other additional features which make the Thermo Scientific™ Orion Star™ A212 Conductivity Meter the perfect choice for taking simple readings and these are:

  • Plain language screen prompts
  • Soft keys that update for easy selection
  • Multilanguage interface supports English, Spanish, French, Italian, German and Chinese
  • Electrode arm and newly designed probe holder for easy maintenance and placement of probes into samples
  • Wall mounting option to save bench space
  • Warranty - This item is covered by a three year replacement warranty

Manufactured by: Thermo Scientific
Model: A212 Conductivity Benchtop Meter

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Accuracy (Conductivity) 0.5% of reading ±1 digit
Accuracy (Resistivity) 0.5% of reading ±1 digit
Accuracy (Salinity) ±0.1ppt
Accuracy (TDS) 0.5% of reading ±1 digit
Battery Life 800 hours
Battery Type Four AA (sold separately)
Calibration Points Up to 5
Cell Constant 0.001 to 199.9cm¹
Compatible Probes 2-cell or 4-cell conductivity with built in temperature
Data Points 2000
Description Orion Star A212 Conductivity/TDS/Resistivity/Salinity/Temperature Benchtop Meter
Display Type Graphic LCD with backlight
Hertz 50/60Hz
Inputs 8-pin Mini-DIN (conductivity with temperature probe), stirrer input
Log Edit Type Delete individual points, delete group of points or delete all
Log Function Type Manual, ready (includes AUTO-READ), timed
Outputs USB, RS232
Power Supply Universal 90-260 VAC (included)
Range (Conductivity) 0.001 µS/cm to 3000 mS/cm
Range (Resistivity) 2 ohm to 100 meg-ohm
Range (Salinity) 0.01 to 80.0 ppt NaCl equivalent; 0.01 to 42 ppt practical salinity
Range (TDS) 0 to 200ppt
Relative Humidity Range 5 to 85 %, non-condensing
Resolution (Conductivity) 0.001 µS minimum, 4 significant digits minimum
Resolution (Resistivity) 2ohms-cm
Resolution (Salinity) 0.01ppt
Resolution (TDS) 4 significant digits
Sensor Types 2-cell or 4-cell conductivity probe - purchase separately
Accuracy (Temperature) ±0.1°C
Temperature Compensation Linear, nLFn (non-linear ultra pure water), nLFu (non-linear ultra pure degassed water), EP (off with warning) or off
Range (Temperature) -5 to 105°C
Resolution (Temperature) 0.1°C
Voltage 90 to 260VAC
Warranty 3 year meter replacement
Salinity Measurement Modes Practical salinity or natural sea water (NaCl equivalent)
TDS Factor Range Linear 0.01 to 10.00
Certifications/Compliance IP-54
Temperature (Metric) Reference 5, 10, 15, 20, 25°C