Thermo Scientific™ Orion™ Dual Star™ pH, ISE, mV, ORP and Temperature Dual Channel Benchtop Meter

Accurately monitor pH, ion concentration, mV, ORP and temperature on two channels with the Thermo Scientific™ Orion™ Dual Star pH / ISE Benchtop Meter for advanced lab analysis.

Brand: Thermo Scientific™

Manufacturer Part Number: 2115000

UNSPSC: 41110000

Code: 59

Additional Details:
Additional Details: Weight: 0.01000kg

Product Code. 12003293

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  • Description and Specification
  • Documentation
  • Accessories and Spare Parts
Description and Specification


Resolution (mV) 0.1mV
Range (ISE) 0.0001 to 19900 with selectable units of ppm, Molar, mg/L, % or unit-less
Calibration Points (ISE) 2 to 6
Backlight Option Yes, adjustable
Data Points 1000 with date and time stamp
Isopotential Point 7.000pH (adjustable), 1.000 ISE (adjustable)
Stability Smart Stability and Smart Averaging
Outputs USB, RS232
Alarm Output High/low limit alarm
Range (mV) ±1999.9mV
Model Orion Dual Star pH/ISE/mV/RmV/ORP/Temperature Dual Channel Benchtop Meter
Accuracy (ISE) ±0.2 mV or ±0.05% of reading whichever is greater
Resolution (Temperature) 0.1°C, 0.1°F
Display Type Graphic LCD with backlight
Dimensions (L x W x H) 24 x 17 x 9cm (9.5 x 6.7 x 3.5 in.)
Languages English, Spanish, French, Italian and German
Relative Humidity Range 5 to 85 %, non-condensing
Temperature Selection Manual or automatic with ATC temperature probe
Accuracy (pH) ±0.002pH
Resolution (ISE) 0.0001 minimum, 1 to 3 significant digits (user selectable)
Inputs Two BNC (pH, ORP or ion selective electrode), two pin-tip (reference electrode), two 8 pin MiniDIN (ATC temperature probe), stirrer input (stirrer probe)
Log Function Type Automatic data logging with Auto-Read, On Ready, At Timed Intervals, Value Change In Measurement and Timed Reading measure modes; manual data logging with Continuous measure mode
Resolution (pH) 0.1, 0.01, 0.001pH
Measurement Modes pH, mV, relative mV (RmV), ORP or ion concentration (ISE) with temperature
Description Orion Dual Star pH/ISE dual channel benchtop meter with ATC probe and stand
Weight (Metric) 0.9kg
Calibration Points (pH) 1 to 6
Data Management Details Transfer single, range or all data points to printer or computer
Methods 10 per channel with password protection
AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (Cat. No. 1010003)
Channels 2
Range (pH) -2.000 to 19.999pH
Power Supply Universal AC adapter (included)
Calibration pH with calibration editing option, ion concentration (ISE) with calibration editing option, relative mV (RmV), ORP and temperature
Accuracy (Temperature) ±0.1°C
Warranty 3 year meter warranty
Range (Relative mV) ±1999.9mV
Electrical Requirements 90 to 260VAC 50/60Hz
Calibration Points 1 point relative mV (RmV) mode, 1 point ORP mode
Voltage 90 to 260VAC
Advanced ISE Functions Segmented (point-to-point) slope, non-linear selectable auto-blank, low concentration range stability, incremental techniques including single known addition, single known subtraction, double known addition and double known subtraction
Includes Dual Star pH/ISE dual channel meter, 927007MD Orion stainless steel ATC probe, electrode stand, universal power adapter, literature, computer interface cable and meter test certificate
Temperature (Metric) Operating 5° to 45°C (ambient)
Accuracy (mV) ±0.2 mV or ±0.05% of reading whichever is greater
Probe Type pH electrode, ORP electrode, ion selective electrode (ISE), reference half-cell electrode, ATC temperature probe, stirrer probe (includes 927007MD Orion ATC probe)
Certifications/Compliance CE, TUV 3-1, FCC Class A
Temperature Probe Calibration 1 point temperature offset calibration
Range (ORP) ±1999.9mV
Range (Temperature) -5.0° to 105.0°C, 22.0° to 221.0°F
Memory Non-volatile memory preserves data log, calibration log and meter settings
Keypad Numeric with menu-specific function keys and dual purpose scroll/shortcut keys

The Orion Dual Star pH/ISE dual channel benchtop meter accelerates sample measurement throughput by showing the results of two channels simultaneously on its large, backlit display. Measure pH, ion concentration (ISE), mV, relative mV or ORP with temperature on two channels using the meter’s two BNC, reference pin-tip and ATC temperature inputs. Collect critical measurements using an assortment of read modes and onscreen ready indicator that alerts when readings are stable. The meter’s Smart Stability and Smart Averaging functions automatically compensate for measurement conditions, so the meter displays more accurate results faster.

  • View large individual measurements on a full screen display or quickly toggle to a split screen display to view two measurements at the same time
  • Easy-to-follow onscreen text prompts for calibration and setup menus available in a multi-language user interface with English, Spanish, French, German or Italian options
  • EZ Startup menu facilitates quick and easy first time meter setup
  • Numeric keypad and menu-specific function keys allow for quick and efficient meter setup and data entry
  • Selectable read modes include Auto-Read, On-Ready, At Timed Intervals, Continuous, Value Change in Measurement and Timed for a variety of measurement collection methods for different analytical methods
  • Perform up to a 6 point pH calibration with automatic recognition for USA/NIST and EURO/DIN buffers with option to manually input custom buffer values
  • Perform up to a 6 point ion concentration (ISE) calibration with non-linear auto-blank and low-concentration stability options or use incremental methods for single/double known addition and single/double known subtraction
  • Non-volatile meter memory holds up to 1000 data points with time and date stamp
  • Easily transfer data via USB and RS232 to a printer or computer with free Orion Dual Star Com communication software
  • Stir samples with ease using the meter-controlled Orion Star stirrer probe
  • Meter-attachable electrode stand assists with moving and maintaining electrodes
  • IP54-rated housing handles splashes and is wall-mountable to save space
  • Three-year meter replacement warranty


Technical documents


Accessories and Spare Parts