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Thermo Scientific Orion VERSA STAR pH/Conductivity Benchtop Meter Set

Part Number: VSTAR50

List Price



-$401.00 (20.6%)  


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3 year meter replacement warranty

AC Adapter

Universal 50-60 Hz, 100-240 VAC power adapter (Cat. No. STARA-PWR)

Accuracy Conductivity

0.5% of reading 1 digit > 3 ?S; 0.5% of reading 0.01 ?S ? 3 ?S

Accuracy mV

0.2 mV or 0.05% of reading whichever is greater

Accuracy pH


Accuracy Resistivity

0.5% of reading 1 digit

Accuracy Salinity

0.5% of reading 1 digit

Accuracy TDS

0.5% of reading 1 digit

Accuracy Temperature


Alarm Output

Set point alarm, high/low limit alarm, calibration due alarm



Calibration Modes

pH with calibration editing option, relative mV (RmV), ORP, conductivity with calibration editing option and temperature

Calibration Points Conductivity

Up to 6

Calibration Points mV

1 point relative mV (RmV) mode, 1 point ORP mode

Calibration Points pH

1 to 6

Cell Constant

0.001 to 199.9 cm-1

Certifications Compliance

CE, TUV 3-1, FCC Class A


4 - customizable with modules

Data Log Function Type

Automatic data logging with Auto-Read, Timed and Single Shot measure modes; manual data logging with Continuous measure mode

Data Management Details

Transfer single, range or all data points to printer or computer

Data Points

2000 with date and time stamp


Orion Versa Star benchtop meter with pH/mV module, conductivity/TDS/salinity/resistivity module and stand

Dimensions LxWxH

28 cm x 24 cm x 10 cm (11'' x 9.5'' x 3.9''), modules add ? 2 cm (0.8'') L & H

Display Type

Color graphic LCD with user-customizable options


Versa Star meter, VSTAR-PH pH module, VSTAR-CND conductivity module, electrode stand, universal power adapter, literature, computer cable and calibration test certificate


BNC (pH or ORP electrode), pin-tip (reference electrode), 8 pin MiniDIN (ATC temperature probe), 8 pin MiniDIN (conductivity sensor with built-in temperature), two stirrer inputs (stirrer probe)

IP Rating


Isopotential Point

7.000pH (adjustable)


Numeric with menu-specific function keys and dual purpose scroll/shortcut keys


English, Spanish, French, Italian, German, Chinese, Portuguese and Korean

Measurement Modes

pH, mV, relative mV (RmV) or ORP with temperature; conductivity, TDS, salinity or resistivity with temperature


Non-volatile memory preserves data log, calibration log and meter settings


10 per channel with password protection


Orion Versa Star 50 pH/mV/RmV/ORP/Conductivity/TDS/Salinity/Resistivity/Temperature Benchtop Meter


USB (2), RS232

Power Supply

Universal AC adapter (included)

Range Conductivity

0.001 S/cm to 3000 mS/cm

Range mV


Range ORP


Range pH

-2.000 to 20.000pH

Range Relative mV


Range Resistivity

2 ohm to 100.0 meg-ohm

Range Salinity

0.06 to 80.00 psu, 0.05 to 42.00 ppt

Range TDS

0.001 to 200.0 ppm

Range Temperature

-5.0 to 105.0 C, 22.0 to 221.0 F

Relative Humidity Range

5 to 85 %, non-condensing

Resolution Conductivity

0.001 ?S minimum, auto ranging up to 4 significant digits

Resolution mV


Resolution pH

0.1, 0.01, 0.001pH

Resolution Resistivity

1 ohm or 0.1 meg-ohm, auto ranging

Resolution Salinity

0.01 psu or 0.01 ppt minimum, auto ranging

Resolution TDS

0.001 ppm minimum, auto ranging up to 4 significant digits

Resolution Temperature

0.1C, 0.1F

Salinity Measurement Modes

Practical salinity (psu) or natural sea water (ppt)


Selectable fast, medium, slow or Smart Stability setting; Selectable off or Automatic Smart averaging setting

TDS Factor Range

Linear (0.02 to 9.99)

Temperature Ambient Operating

5 to 45C, 41 to 113F

Temperature Compensation

Linear, nLFn (non-linear ultra pure water), nLFu (non-linear ultra pure degassed water), EP (off with warning) or off

Temperature Probe Calibration

1 point temperature offset calibration

Temperature Reference Options

5, 10, 15, 20, 25C

Temperature Selection

Manual or automatic with ATC temperature probe


3 year meter and module warranty


1.2 kg (modules add 0.2 kg each), 2.5 lbs (modules add 0.5 lbs each)

Included with Purchase

Orion VERSA STAR meter

Orion VERSA STAR pH/temperature module

Orion VERSA STAR conductivity/temperature module

Electrode arm with redesigned holder

Universal power adapter

VERSA STAR 50 Models with Other Options



Orion VERSA STAR meter

Orion VERSA STAR pH/temperature module

Orion VERSA STAR conductivity/temperature module

8157BNUMD Orion ROSS Ultra Triode pH/ATC probe

013005MD Orion DuraProbe conductivity cell, K=0.475

810199 ROSS solution kit (475 mL each of pH 4, 7 and 10 buffers; storage solution; cleaning solution; and pH electrode storage bottle)

011007 conductivity standard, 1413 μS, 5 x 60 mL

Electrode arm with redesigned holder

Universal power adapter


VSTAR52 Full Specs and Ordering Information

Individual Components

Orion VERSA STAR Benchtop Meter with Electrode Stand

Part Number: VSTAR00

The meter includes two Orion Star stirrer probe ports, one RS232 port, two USB ports, power port and grounding port, electrode arm and individual channel covers to protect the channels not in use, and a universal power adapter.


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All information current as of Saturday, September 23, 2017