Thermo Scientific™ Orion Star™ A112 Conductivity Benchtop Meter

Take simple conductivity, TDS and temperature measurements with the Thermo Scientific™ Orion™ Star A112 Conductivity Benchtop Meter with easy operation for basic lab testing

Brand: Thermo Scientific™

Manufacturer Part Number: STARA1125

UNSPSC: 41115609

Code: 59

Additional Details:
Additional Details: Weight: 6.12350kg

Product Code. 11671439

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Description and Specification


Description Orion Star A112 conductivity/TDS benchtop meter kit with 2-cell conductivity sensor, solutions and stand
Warranty 3 year meter warranty
Model Orion Star A112 Conductivity/TDS/Temperature Benchtop Meter
Range (Conductivity) 0.01 µS/cm to 200.0 mS/cm
Resolution (Conductivity) 0.01 μS minimum, auto ranging up to 3 significant digits
Accuracy (Conductivity) 0.5% of reading ±1 digit
Range (TDS) 1 to 19999mg/L
Resolution (TDS) 1mg/L
Accuracy (TDS) 0.5% of reading ±1 digit
TDS Factor Range Linear (0.02 to 9.99)
Cell Constant 0.001 to 10cm-1
Compatible Probes 2-cell or 4-cell conductivity sensors with built-in temperature
Temperature Compensation Linear
Temperature (Metric) Reference 20, 25°C
Calibration Conductivity and temperature
Range (Temperature) -5.0° to 105.0° C, 22.0° to 221.0° F
Resolution (Temperature) 0.1°C, 0.1°F
Accuracy (Temperature) ±0.1°C
Temperature Selection Manual or automatic with ATC temperature probe
Temperature Probe Calibration 1 point temperature offset calibration
Channels 1
Display Type LCD
Keypad Simple with highlighted measure key, scroll and shortcut keys
Measurement Modes Conductivity or TDS with temperature
Stability Smart Stability and Smart Averaging
Data Management Details Internal data point memory
Data Points 50
Log Function Type Automatic data logging with Auto-Read measure mode; manual data logging with Continuous measure mode
Memory Non-volatile memory preserves log and settings
Languages English
Inputs 8 pin MiniDIN (conductivity sensor with built-in temperature)
Outputs None
Probe Type Conductivity sensor (includes 011050MD Orion 2-cell conductivity sensor)
Power Supply Universal AC adapter (included) or 4 AA batteries (sold separately)
AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (Cat. No. 1010003)
Battery Type Four AA (sold separately)
Battery Life 2000 hours
IP Rating IP-54
Certifications/Compliance CE, TUV 3-1, FCC Class A
Temperature (Metric) Operating 5° to 45° C (ambient)
Relative Humidity Range 5 to 85 %, non-condensing
Dimensions (L x W x H) 24cm x 18cm x 11cm (9.5 in. x 7.1 in. x 4.3 in.)
Weight (Metric) 0.9kg
Calibration Points (Conductivity) 1

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, 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
  • Â 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


Technical documents