A112 Conductivity Benchtop Meter

  • Accurate Perfect for taking simple conductivity measurements
  • Easy to Use Clear, informative screen and simple button layout
  • Warranty This product comes complete with a three year warranty
Product Options


The A112 Conductivity Benchtop Meter is very easy to use, a handy large screen displays on screen messages which help with calibration and setup menu choices. This particular meter features a selectable cell constant as well as selectable reading reference temperatures of 20 or 25°C to ensure accurate results.

The Large informative screen clearly shows all relevant information including conductivity or TDS reading, temperature, meter mode and power source. Thermo Scientific™ AUTO-READ™ ensures stable readings are locked in, whilst the ready indicator alerts when readings are stable.

There are many other features which make the Thermo Scientific™ Orion Star™ A112 Conductivity Meter the perfect meter for simple measurements and these are:

  • IP54 rated housing which withstands splashes
  • A non-volatile memory capable of holding up to 50 data points
  • A three year replacement warranty
  • Meter supplied with universal power adapter, or can be powered using four AA batteries to run the meter on DC power
  • Included electrode arm and newly designed holder make it easier to maintain and place probes into samples
  • Meter can easily be wall mounted, saving bench space

Manufactured by: Thermo Scientific
Model: A112 Conductivity Benchtop Meter

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Accuracy (Conductivity) 0.5% of reading ±1 digit
Accuracy (TDS) 0.5% of reading ±1 digit
Battery Life 2000 hours
Battery Type Four AA (sold separately)
Calibration Points 1
Cell Constant 0.001 to 10cm¹
Compatible Probes 2–cell or 4–cell conductivity with built in temperature
Data Points 50
Description Orion Star A112 Conductivity/TDS/Temperature Benchtop Meter
Display Type LCD
Hertz 50/60Hz
Inputs 8–pin Mini–DIN (conductivity with temperature probe)
Log Edit Type Delete last point or delete all
Log Function Type Manual, automatic with AUTO-READ
Outputs None
Power Supply Universal 90–260 VAC (included)
Range (Conductivity) 0.1 µS/cm to 200 mS/cm
Range (TDS) 1 to 19999mg/L
Relative Humidity Range 5 to 85 %, non–condensing
Resolution (Conductivity) 0.01 µS minimum, 3 significant digits minimum
Resolution (TDS) 4 significant digits
Sensor Types 2–cell or 4–cell conductivity probe - purchase separately
Accuracy (Temperature) ±0.1°C
Temperature Compensation Linear
Range (Temperature) –5 to +105°C
Resolution (Temperature) 0.1°C
Voltage 90 to 260VAC
Warranty 3 year meter replacement
TDS Factor Range Linear 0.01 to 10.00
Certifications/Compliance IP-54
Temperature (Metric) Reference 20, 25°C