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

Get premium performance and ultimate flexibility with the Thermo Scientific™ Orion™ Versa Star Pro™ Meter with pH Module for pH, mV, ORP and temperature on customizable color display

Manufacturer:  Thermo Scientific™ ORIVSTAR12

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Catalog No. 13-645-574



Get high accuracy, premium performance and ultimate flexibility with the Thermo Scientific™ Orion™ Versa Star Pro™ Benchtop Meter with pH Module. Meet your most challenging applications for pH, mV, ORP and temperature. Easily view measurements on the stunning color display and customize the four meter channels with interchangeable modules. Perform up to a six point pH calibration, log up to 2000 data point sets with time / date stamp and easily transfer calibration and data logs via USB or RS232 to a printer or computer. Use the included electrode stand to easily place sensors in samples.

This versatile meter has a large, color graphic LCD display. The informative display shows readings, connections, time, date, sample ID, user ID and calibration information.
  • Select from five modules to customize the four channels as you need it — it's versatile for you to configure how you need it for now or for later
  • Anyone can use this meter with its plain language screen prompts, soft keys that update for easy selection and a multilanguage interface that supports English, Spanish, French, Italian, German and Chinese
  • Nonvolatile memory holds up to 2000 data points with time and date stamp
  • Data transfer and updating meter software is easy with two USB and RS232 ports
  • Includes data analysis software for transferring stored results or displaying readings in real time
  • Mix samples without a stir plate with direct control for two Orion Star stirrer probes (096019, sold separately)
  • Included electrode arm and newly designed probe holder make it easier to maintain and place probes into samples
  • Works with almost every AC power source with the included universal power adapter
  • IP54-rated housing handles splashes
  • Three year meter replacement warranty

pH/Temperature module allows:

  • Up to five point pH calibration with automatic recognition for USA/ NIST™ and DIN buffers
  • Fixing of calibration errors without a complete recalibration with calibration editing


2000 with Date and Time Stamp
English, Spanish, French, Italian, German, Chinese, Portuguese and Korean
41° to 113°F (ambient)
0.1°C, 0.1°F
1 point temperature offset calibration
-5.0° to 105.0° C
1.2kg, modules add 0.2kg each
2.5 lb., modules add 0.5 lb. each
1 to 6
4 - customizable with modules
Orion Versa Star Pro pH/mV benchtop meter ROSS standard kit
0.1, 0.01, 0.001
Versa Star Pro meter, VSTAR-PH pH module, 8302BNUMD ROSS Ultra Triode glass-body pH/ATC electrode, 096019 Orion Star stirrer probe, 810199 ROSS pH buffer and solution kit, electrode stand, universal power adapter, literature CD, printed quick start guide,
BNC (pH or ORP electrode), pin-tip (reference electrode), 8 pin MiniDIN (ATC temperature probe), two stirrer inputs (stirrer probe)
Numeric with menu-specific function keys and dual purpose scroll/shortcut keys
10 per channel
USB, RS-232
Universal AC adapter (included)
DC input: 9VDC, 1A
LCD (Color Graphic with User-Customizable Options)
Automatic data logging with Auto-Read, Timed and Single Shot measure modes; manual data logging with Continuous measure mode
Selectable fast, medium, slow or Smart Stability setting; Selectable off or Automatic Smart averaging setting
22.0° to 221.0° F
5° to 45°C (ambient)
3 year meter and module warranty
Manual or automatic with ATC temperature probe
Universal 50-60 Hz, 100-240 VAC power adapter (Cat. No. STARA-PWR)
±0.2 mV or ±0.05% of reading whichever is greater
Set point alarm, high/low limit alarm, calibration due alarm
pH with calibration editing option, relative mV (RmV), ORP and temperature
Transfer single, range or all data points to printer or computer
CE, TUV 3-1, FCC Class A
28cm x 24cm x 10cm (11 in. x 9.5 in. x 3.9 in.), modules add ≤ 2cm (0.8 in.) L & H
-2.000 to +20.000
7.000pH (adjustable)
Non-volatile memory preserves data log, calibration log and meter settings
pH, mV, relative mV (RmV) or ORP with temperature
pH electrode, ORP electrode, reference half-cell electrode, ATC temperature probe, stirrer probe (includes 8302BNUMD ROSS Ultra Triode pH/ATC electrode, 096019 Orion Star stirrer probe)
5 to 85%, non-condensing
±2000.0 mV