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Orion™ Star™ A222 Conductivity Portable Meter, Thermo Scientific

Reliably measure conductivity, TDS, salinity, resistivity and temperature with the Orion™ Star™ A222 Conductivity Portable Meter for advanced field analysis.

  • Perform up to a five point conductivity calibration
  • Auto-ranging conductivity values offer consistent readings across entire measurement range without need to recalibrate
  • Informative, easy-to-read backlit graphic display with clear onscreen instructions simplifies operation
  • Auto-Read mode holds a stable reading and Continuous mode shows changing readings with hold option
  • Non-volatile meter memory ensures data and settings are protected, even with loss of power
  • Three-year meter warranty

Record accurate and reliable conductivity, total dissolved solids (TDS), salinity, resistivity, and temperature measurements with the Orion™ Star™ A222 Conductivity Portable Meter

Don't leave measurements to chance when analyzing samples outside the lab. Orion™ Star™ A222 conductivity portable meters are designed to offer the reliability needed in a user-friendly package for dedicated conductivity testing needs. This waterproof portable meter displays critical data with measurement including temperature, date and time, read type, measurement stability, active calibration information, and power source status. Flexible power options with AA batteries or universal power adapter.

The unit is ideal for a wide range of applications and advanced conductivity analysis in the field. Obtain temperature compensated readings using linear, non-linear, or EP options with 15, 20 or 25°C reference temperatures. Log up to 1000 data point sets with time/date stamp and transfer via USB or RS232 to a printer or computer. Waterproof meter ensures durable, rugged performance with an IP67-rated housing.

Certifications: CE, TUV 3-1, FCC Class A.

Ordering information: For compatible conductivity probe, see Orion™ item 013010MD. For compatible buffer solutions, see Orion™ item 911110.



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Meters and Kits
Description Includes Supplier No. VWR Catalog Number Unit Price Quantity
Orion™ Star™ A222 Conductivity/TDS/Salinity/Resistivity Portable Meter Star™ A222 conductivity meter; 4 AA batteries; literature CD; printed quick start guide; computer interface cable; meter test certificate STARA2220 89206-316 Each Retrieving
Orion™ Star™ A222 Conductivity/TDS/Salinity/Resistivity Portable Meter Kit with DuraProbe 4-cell Conductivity Sensor Star™ A222 Conductivity Meter with Batteries; DuraProbe Epoxy 4-Probe (K=0.475) Conductivity Probe with 3 Meter Cable; Conductivity 1413uS Standard Pouches; Rinse Solution Pouches; Star A Meter Hard Carrying Case; Protective Armor with Electrode Holder STARA2225 89206-318 Each Retrieving
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Display Graphic LCD with backlight
Memory Non-volatile memory preserves data log, calibration log, and meter settings
Outputs USB, RS232
Alarm Calibration due alarm (fixed 12 hour)
Calibration Conductivity and temperature
Calibration Points Up to 5 points (Conducitivity)
Dimensions 24L x 10W x 6.5H cm (9.5 x 3.9 x 2.6")
Languages English, Spanish, French, Italian, German, and Chinese (Portuguese and Korean available with software update)
Weight 0.5 kg (1.2 lbs.)
Operating Temperature Range 5 to 45°C (41 to 113°F)
Temperature Accuracy ±0.1°C
Temperature Resolution 0.1°C, 0.1°F
Conductivity Range 0.001 µS/cm to 3000 mS/cm
Conductivity Resolution 0.001 μS minimum, auto ranging up to 4 significant digits
Conductivity Accuracy 0.5% of reading ±1 digit greater than 3 μS; 0.5% of reading ±0.01 μS less/equal than 3 μS
Resistivity Range 2 ohm to 100.0 meg-ohm
Resistivity Accuracy 0.5% of reading ±1 digit
Salinity Range 0.06 to 80.00 psu, 0.05 to 42.00 ppt
Salinity Resolution 0.01 psu or 0.01 ppt minimum, auto ranging
Salinity Accuracy 0.5% of reading ±1 digit
TDS Range 0.001 to 200.0 ppm
TDS Resolution 0.001 ppm minimum, auto ranging up to 4 significant digits
TDS Accuracy 0.5% of reading ±1 digit
Cell Constant 0.001 to 199.9 cm-1
Resistivity Resolution 1 ohm or 0.1 meg-ohm, auto ranging
Temperature Range –5 to 105°C (22 to 221°F)
Battery Life 800 hours
Input 8 pin MiniDIN (conductivity sensor with built-in temperature)
IP Rating IP-67
Power supply 4 AA batteries (included) or universal AC adapter (sold separately)
Battery Type Four AA (included)
Data Memory 1000 data points with time/date stamp
Channels 1


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Meter Kit Components and Accessories
Description Supplier No. VWR Catalog Number Unit Price Quantity
Hard-Sided Field Case STARA-CS 89206-424 Each Retrieving
Protective Meter Armor STARA-AR 89206-432 Each Retrieving
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