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Laboratory Conductivity Biotechnology

Laboratory Conductivity

Brand:Thermo Scientific
Product Code:Orion Star A112 from Thermo Scientific

Need more Info? (514) 354-2511 - 1-800-463-4363

Thermo Scientific Orion Star A112 Conductivity Benchtop Meters combine simplicity with accuracy.

  • A large LCD displays conductivity or TDS readings along with temperature.
  • Icons provide quick updates on battery life and completed calibration status.
  • Simple button layout and onscreen messages help with calibration and setup menu choices.

Features and Benefits

  • Large, informative screen clearly shows the main information, including conductivity or TDS reading, temperature in ºC or ºF, meter mode and power source
  • Don’t miss a reading – AUTOREAD ™ locks in the stable reading on your screen and ready indicator alerts when readings are stable
  • Selectable cell constant
  • Selectable reading reference temperatures of 20 °C or 25 °C for an accurate result
  • Included electrode arm and newly-designed holder make it easier to maintain and place probes into samples
  • Plug the meter into almost any power outlet with the included universal power adapter, or use four AA batteries (sold separately) to run the meter on DC power
  • Non-volatile memory holds up to 50 data points
  • The IP54-rated housing can handle splashes and can be wall-mounted if table space is a problem
  • 3 year meter replacement warranty


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
Reference Temperature 20, 25 °C (default)
Temperature Compensation Linear (0.0 to 10.0 %/ºC)
Compatible Cell Constants  0.001 to 10
Number of Calibration Points  1
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 ºF
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
Number of Points 50
Log Function  Manual, Automatic
Log Edit  Delete last reading or all
Conductivity with Temperature Probe  8-pin mini-DIN
AC Adapter  Included– universal, 100-240 VAC
Battery Power  Optional– 4 AAs
Battery Life  2000 hrs

Ordering Informations

Meters Only

CAT. No.  Description
STARA1120  Orion STAR A112 Conductivity Benchtop Meter
  • Electrode arm with redesigned holder
  • Universal power adapter
STARA1125  Orion STAR A112 Conductivity Benchtop Meter Kit
  • 011050MD orion conductivity cell, K=1.0
  • 011007 conductivity standard, 1413 μS, 5x60 mL
  • Electrode arm with redesigned holder
  • Universal power adapter


STARA-BEA  Benchtop electrode arm for Orion Star A-series meters
STARA-HB  Freestanding base for use with Orion Star A-series benchtop electrode arm
011050MD  Orion 2-electrode conductivity cell, K=1.0
013016MD Orion 2-electrode conductivity cell with flow cell, K=0.1
011008  Orion conductivity standard, 100 μS/cm, 5x60 mL bottles
011007  Orion conductivity standard, 1413 μS/cm, 5x60 mL bottles
011006  Orion conductivity standard, 12.9 mS/cm, 5x60 mL bottles
1010001  Orion conductivity calibration resistor kit

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