Advanced Conductivity Benchtop Meter

Star A212 Conductivity Meter
Star A212 Conductivity meter

The Thermo Scientific™ Orion™ Star A212 Conductivity Benchtop Meter is the ideal choice for any lab. Get the information you need quickly and easily from the large, backlit graphic LCD display.

The informative display shows Conductivity, Total Dissolved Solids (TDS), Salinity, Resistivity and temperature with electrode status, time, date, sample ID, user ID and calibration info.

Features and Benefits

  • Easy meter operation assured with on-screen text prompts, menu-specific function keys and a multi-language interface
  • Don't miss a reading - Ready indicator alerts when readings are stable, AUTO-READ™ locks in the stable reading on your screen, and timed reading gathers data in specific time intervals
  • Automatic or manual conductivity calibration and auto-ranging measurements for high accuracy across all conductivity ranges
  • Selectable reference temperatures of 5, 10, 15, 20 or 25°C with linear, non-linear or EP curve options for temperature compensated conductivity readings
  • Non-volatile memory holds up to 2000 data points with time and date stamp
  • Easily transfer data and keep meter software up-to-date with the USB and RS232 ports and complimentary Orion Star Com computer software
  • Stir samples with ease using the meter-controlled Orion Star stirrer probe
  • Included electrode arm and holder make it easier to maintain probes
  • Power the meter using the universal power adapter or four AA batteries
  • IP54-rated housing handles splashes and is wall-mountable to save space

Technical Specifications

Measuring rangeResolutionAccuracy
Conductivity0.001 μS…3000 mS0.0001 μS, auto-ranging, up to 4 significant digits 0.5% of reading ± 1 digit >3 μS
Resistivity2 Ω…100 MΩ1 Ω or 0.1 MΩ, auto-ranging0.5% of reading ± 1 digit
Salinity0.06…80.00 psu
0.05…42.00 ppt
0.01 psu
0.01 ppt
0.5% of reading ± 1 digit
TDS0.001…200.00 ppt0.0001 ppt minimum, auto-ranging, up to 4 significant digits 0.5% of reading ± 1 digit
Temperature ATC-5.0…105.0 °C
23…221 °F
0.1 °C
0.1 °F
± 0.1 °C
± 0.1°F
Calibration pointsMax. 5
Calibration editingYes
Compatibale cell constants0.001…199.9
Reference temperature5, 10, 15, 20, 25 °C
Temperature compensationLinear (Coefficient: 0…10.0 %/°C)
Nonlinear nLFn and nLFu
Calibration reminderUser-configurable
Electrode status iconShows quality of last calibration
Choice of endpoint formatsAutomatic, continuous, timed
Choice of stability criteriaFast, medium, slow, SMART
Temperature captureAutomatic and manual
Serial measurementsTime interval user-configurable
System and GLP
Menu guidance6 languages
Time and date2 time formats, 2 date formats
Measurement limitsUser-defined
ID inputUser ID, sample ID
Data processing
Data storage2000 measurements
Print formatsManual, Ready (includes AUTO-READ), Timed
Data ExportUSB-stick, Star Com software
Conductivity probe with built-in temperature input8-pin mini-DIN
Communication interfacesRS232, Mini-USB
Stirrer connectorMini-DIN
Power requirementsDC 9V, 1A adaptor supplied
Power connectorsUK, EU, US and China
Size/weight240 x 180 x 110 mm, 900 g
DisplayGraphic LCD
Ambient conditions
Temperature5…45 °C
Relative humidity5…85% (non-condensing)
Installation categoryII
Pollution degree2
Ingress protection
Protection levelIP54
HousingABS/PC reinforced
WindowPolymethyl methacrylate (PMMA)
KeypadMembrane keypad: Polyethylene terephthalate (PET)


Page reviewed: 18th December 2017