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Thermo Scientific Orion Star A215 pH/Conductivity Benchtop Multiparameter Meter

Part Number: STARA2150

List Price



-$144.00 (10.5%)  


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3 year meter replacement warranty

AC Adapter

Universal 50-60 Hz, 100-240 VAC power adapter (Cat. No. 1010003)

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

High/low limit alarm, calibration due alarm


Yes, selectable

Battery Life (Average)

800 hours

Battery Type

Four AA (sold separately)

Calibration Modes

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

Calibration Points Conductivity

Up to 5

Calibration Points mV

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

Calibration Points pH

1 to 5

Cell Constant

0.001 to 199.9 cm-1

Certifications Compliance

CE, TUV 3-1, FCC Class A



Data Log Function Type

Automatic data logging with Auto-Read and Timed 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 Star A215 pH/conductivity benchtop meter with stand

Dimensions LxWxH

24 cm x 18 cm x 11 cm (9.5'' x 7.1'' x 4.3'')

Display Type

Graphic LCD with backlight


Star A215 pH/conductivity meter, electrode stand, universal power adapter, literature, computer cable and calibration test certificate


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

IP Rating


Isopotential Point



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


English, Spanish, French, Italian, German and Chinese; Portuguese and Korean available with software update

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 Star A215 pH/mV/RmV/ORP/Conductivity/TDS/Salinity/Resistivity/Temperature Benchtop Meter


USB, RS232

Power Supply

Universal AC adapter (included) or 4 AA batteries (sold separately)

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 warranty


0.9 kg, 2 lbs

Included with Purchase

Orion Star A215 Benchtop Meter

Electrode arm with redesigned holder

Universal power adapter

Star A215 Models with Other Options



Orion Star A215 Benchtop Meter

8157BNUMD Orion ROSS Ultra Triode pH/ATC electrode

013005MD Orion DuraProbe conductivity cell

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

011007 Orion 1413 μS conductivity standard, 5 x 60 mL

Electrode arm with redesigned holder

Universal power adapter


STARA2155 Full Specs and Ordering Information


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All information current as of Monday, October 24, 2016