Thermo Scientific™ Orion™ Versa Star Pro™ pH/LogR™ Benchtop Meter

Get premium performance and ultimate flexibility with the Thermo Scientific™ Orion™ Versa Star Pro™ Meter with pH / LogR Module for pH, mV, ORP and LogR temperature technology

Brand: Thermo Scientific™

Manufacturer Part Number: VSTAR80

UNSPSC: 41115603

Code: 59

Additional Details:
Additional Details: Weight: 1.36080kg

Product Code. 11631509

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1 £ 1465.0 / Each
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Description and Specification


Methods 10 per channel
Includes Versa Star Pro meter, VSTAR-LR pH/LogR module, electrode stand, universal power adapter, literature CD, printed quick start guide, computer interface cable and meter test certificate
Description Orion Versa Star Pro benchtop meter with pH/LogR/mV module and stand
Isopotential Point 7.000pH (adjustable)
Data Points 2000 with date and time stamp
Backlight Option Yes
Resolution (mV) 0.1mV
Log Function Type Automatic data logging with Auto-Read, Timed and Single Shot measure modes; manual data logging with Continuous measure mode
Outputs USB (2), RS232
Range (mV) ±2000.0mV
Alarm Output Set point alarm, high/low limit alarm, calibration due alarm
Stability Selectable fast, medium, slow or Smart Stability setting; Selectable off or Automatic Smart averaging setting
Temperature Selection Manual or automatic with ATC temperature probe, automatic with pH electrode using LogR mode
Languages English, Spanish, French, Italian, German, Chinese, Portuguese and Korean
Resolution (Temperature) 0.1°C, 0.1°F
IP Rating IP-54
Relative Humidity Range 5 to 85 %, non-condensing
Dimensions (L x W x H) 28cm x 24cm x 10cm (11 in. x 9.5 in. x 3.9 in.), modules add ≤ 2cm (0.8 in.) L & H
Measurement Modes pH with LogR temperature, mV, relative mV (RmV) or ORP with temperature
Resolution (pH) 0.1, 0.01, 0.001pH
Accuracy (pH) ±0.002pH
Inputs BNC (pH or ORP electrode), pin-tip (reference electrode), 8 pin MiniDIN (ATC temperature probe), two stirrer inputs (stirrer probe)
Display Type Color graphic LCD with user-customizable options
Calibration Points (pH) 1 to 6
AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (Cat. No. STARA-PWR)
Data Management Details Transfer single, range or all data points to printer or computer
Channels 4 - customizable with modules
Weight (Metric) 1.2kg, modules add 0.2kg each
Accuracy (Temperature) ±0.1°C
Range (Relative mV) ±2000.0mV
Range (pH) -2.000 to 20.000pH
Calibration pH with calibration editing option, relative mV (RmV), ORP, LogR temperature and temperature
Warranty 3 year meter and module warranty
Power Supply Universal AC adapter (included)
Temperature (Metric) Operating 5° to 45° C (ambient)
Calibration Points 1 point relative mV (RmV) mode, 1 point ORP mode
Accuracy (mV) ±0.2 mV or ±0.05% of reading whichever is greater
Probe Type pH electrode, ORP electrode, reference half-cell electrode, ATC temperature probe, stirrer probe (purchase separately)
Range (Temperature) -5.0° to 105.0° C, 22.0° to 221.0° F
Temperature Probe Calibration 1 point temperature offset calibration, 3 point LogR temperature calibration
Range (ORP) ±2000.0mV
Memory Non-volatile memory preserves data log, calibration log and meter settings
Certifications/Compliance CE, TUV 3-1, FCC Class A
Keypad Numeric with menu-specific function keys and dual purpose scroll/shortcut keys

Large, Color Graphic LCD Display:

  • Informative display shows readings, connections, time, date, sample ID, user ID and calibration information.
  • Five modules customize four channels as you need it.
  • Meter includes plain language screen prompts and soft keys to update for easy selection.
  • Multilanguage interface supports English, Spanish, French, Italian, German and Chinese.


  • Nonvolatile memory holds up to 2000 data points with time and date stamp.
  • Two USB and RS232 ports facilitates easy data transfer and meter software updates.
  • Data analysis software transfers stored results and displays readings in real time.
  • Direct control for two Orion Star stirrer probes (096019, sold separately) enables mixing samples without a stir plate.
  • Electrode arm and newly designed probe holder make it easier to maintain and place probes into samples.
  • Universal power adapter works with almost every AC power source.
  • IP54-rated housing handles splashes.


  • pH, mV, relative mV (RmV) or ORP with temperature using LogR technology, ATC probe or manual input measurements
  • No temperature sensor required for temperature-compensated pH readings
  • Most advanced electrode diagnostics using pH bulb resistance


Technical documents