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Orion Star A Benchtop Meters

From $629.95
List Price From $1,109.00

Thermo Scientific Orion Star A Benchtop Meters come in two models and a variety of parameter configurations to meet the needs of virtually any lab. Units feature an attractive black housing with an easy-to-clean surface and IP52 splash rating. Meters can be wall-mounted if space is tight. Choose from two types: 

A100 Series meters (A111, A112, A113) are highly accurate, yet simple to use – perfect for the small industrial lab where regulatory compliance is not an issue. A large LCD displays readings; icons indicate remaining battery life, electrode status, and calibration information. On-screen help messages walk the user through calibration and set-up. All units feature AUTO-READ technology that indicates when readings are locked in and stable. The non-volatile memory holds up to 50 data points. 

A200 Series meters (A211, A212, A213, A214, A215, A216) provide added features and support for GLP/GMP reporting. In addition to the features found in the A100 Series, these meters include an expanded RDO range and multi-language support. The non-volatile memory holds up to 2000 data points with time and date stamp. Both USB and RS232 ports provide for data download. Units include support software for several data functions including stability and averaging. Parameters and instructions are easy to read via a backlit LCD.


Meters are available with a variety of test parameters:

Meters with pH measurement include an electrode arm and an ergonomically-designed probe holder that make it easier to maintain and place probes into samples. Calibration is automatic for USA/NIST and DIN buffers (3-point calibration for A100 Series meters; 5-point calibration for A200 Series meters).

Meters with conductivity include readings for conductivity/TDS, temperature (in ºC or ºF), meter mode and power source. Meters include both a selectable cell constant and reading reference temperature (A100 series at 20ºC or 25ºC; A200 series at 5º, 10º, 15º, 20º or 25ºC) to ensure accurate results. A200 Series meters include a choice of practical salinity or natural sea water curves for salinity readings, plus linear or ISO/EN 27888 curves for TDS. 

Meters with dissolved oxygen include DO reading in mg/L or % saturation, temperature (in ºC or ºF), meter mode, and power source. Automatic temperature, manual salinity input, and manual barometric pressure compensation (automatic compensation on A200) ensures an accurate result. A100 Series meters have two calibration options: water-saturated air method or a Winkler titration; A200 Series meters can be calibrated using water-saturated, air, air-saturated water, Winkler titration or zero-point calibration. These meters can also be used with AUTO-STIR polarographic DO probes for faster readings.

pH electrode input is BNC; ATC probe input is 8-pin mini DIN. All meters include an electrode stand (meter-base version) with new electrode head and a universal 100-240 VAC AC adapter. Meters can also be powered by four AA batteries (not included).

Note: see the Documentation tab for additional specifications for individual models.

Key Features

  • Plain language screen prompts and soft-key interface 
  • AUTOREAD locks in stable readings and flashes a ready indicator
  • Splash-proof housing can be wall mounted
  • A200 Series models that support full GLP/GMP data capture and reporting 
  • 3-year warranty
Specifications for Star A Benchtop Meters
  A100 Series Meters A200 Series Meters
pH Range: -2.00 to 16.00 -2.000 to 20.000
pH Resolution: 0.1, 0.01 0.1, 0.01, 0.001
pH Relative Accuracy: ± 0.01 ±0.002
pH Calibration Points: Up to 3 Up to 5
mV Range: ±1500.0 mV ±2000.0 mV
mV Resolution: 0.1 0.1
mV Relative Accuracy: ±0.2 mV or ±0.05 % of reading, whichever is greater
±0.2 mV or ±0.05% of reading, whichever is greater
Temperature Range: -5º to 105°C; 23 to 221ºF -5º to 105°C
Temperature Resolution: 0.1 0.1
Temperature Relative Accuracy: ±0.1 ±0.1
Conductivity Range: 0.1 μS/cm to 200 mS/cm 0.00 to 3000 mS
Conductivity Resolution: 0.01 μS minimum; 3 significant figures minimum 0.01 uS minimum; 4 significant figures minimum
Conductivity Relative Accuracy: 0.5 % reading; ±1 digit 0.5% reading ±1 digit
Conductivity Temperature Compensation: 20°, 25°C (default 25°C) 5 °, 10 °, 15°, 20°, 25°C
TDS Range: 1 to 19,999 mg/L 0 to 200 ppt
TDS Resolution: 4 significant digits 4 significant digits
TDS Relative Accuracy: 0.5 % reading; ±1 digit ±0.5% reading ±1 digit
TDS Factor Range: Linear, 0.01 to 10.00 (default 0.49) Linear, 0.01 to 10.00
Resistivity Range: - 2 Ohm to 100Meg-Ohm
Resistivity Resolution: - 2 ohms-cm
Resistivity Relative Accuracy: - 0.5% ± 1 digit
Salinity Type: - Practical salinity or natural sea water, multilanguage interface, direct control of Star stirrer probe 096019 (sold separately)
Salinity Range: - 0.01 to 80.0 ppt NaCl equivalent;
0.01 to 42 ppt practical salinity
Salinity Resolution: -
0.01
Salinity Relative Accuracy: - ± 0.1
DO Concentration Range: 0 to 20 mg/L Polarographic: 0 to 90mg/L;
RDO optical: 0 to 50mg/L
DO Concentration Resolution: 0.01, 0.1 0.01, 0.1
DO Concentration Relative Accuracy: ±0.2 Polarographic: ±0.2mg/L; ±2%
RDO optical: ±0.1mg/L up to 8mg/L, ±0.2mg/L up to 20mg/L, 10% of reading beyond; ±2%
DO % Saturation Range: 0 to 200 Polarographic: 0 to 600;
RDO optical: 0 to 500
DO % Saturation Resolution: 0.1, 1 0.1, 1
DO Manual Barometric Pressure Correction 450.0 to 850.0 mm Hg -
DO Manual Salinity Factor Correction 0 to 45 ppt -
DO Sensor Type: Polarographic Polarographic or RDO (optical/luminesce-based) DO

Specifications for Star A Benchtop Meter Kits
Model Measures Kit Includes
A111  pH/ORP/Temp Kit Triode; Solution kit (60 mL each of pH 4, 7, 10 buffers; storage solution; cleaning solution); Electrode arm w/ redesigned holder; Universal power adapter
Kit w/ TRIS-compatible Electrode Green combination double-junction refillable pH electrode with epoxy body; stainless steel ATC probe; Electrode arm w/ redesigned holder; Universal power adapter
A211 pH/ORP/Temp ROSS Triode; ROSS solution kit (475 mL each of pH 4, 7, 10 buffers; storage solution; cleaning solution; pH electrode storage bottle); Electrode arm w/ redesigned holder; Universal power adapter
A112 Cond/Temp Conductivity cell, K=1.0; Conductivity standard, 1413 μS, 5 x 60 mL; Electrode arm w/ redesigned holder; Universal power adapter
A212 Cond/Temp Kit DuraProbe conductivity probe, K=0.475; Conductivity standard, 1413 μS, 5 x 60 mL; Electrode arm w/ redesigned holder; Universal power adapter
Kit for Ultrapure Water Conductivity probe with flow-through cell, K=0.1; Conductivity standard, 100 μS, 5 x 60 mL; Electrode arm w/ redesigned holder; Universal power adapter
A113 DO/Temp Polarographic DO probe w/ calibration sleeve; DO probe maintenance kit; Electrode arm w/ redesigned holder; Universal power adapter
A213 RDO/DO/Temp Kit Polarographic DO probe w/ calibration sleeve; DO probe maintenance kit; BOD funnel/stirrer; BOD adapter; Electrode arm w/ redesigned holder; Universal power adapter
Kit w/ Self-Stirring Probe Polarographic AUTO-STIR DO/BOD probe; DO probe maintenance kit; DO probe electrolyte solution; Electrode arm w/ redesigned holder; Universal power adapter
A214 pH/ISE/ORP/Temp Kit ROSS Ultra pH electrode; stainless steel ATC probe; Star stirrer probe; ROSS solution kit (475 mL each of pH 4, 7, 10 buffers; storage solution; cleaning solution; pH electrode storage bottle); Electrode arm w/ redesigned holder; Universal power adapter
Kit for Ammonia ROSS Ultra pH electrode; High-performance Ammonia ISE; stainless steel ATC probe; Star stirrer probe; Ammonia 1000 ppm standard, 475 mL; Low-level Ammonia ISA; Ammonia ASE storage solution; Electrode arm w/ redesigned holder; Universal power adapter
Kit for Fluroide ROSS Ultra pH electrode; Fluoride ISE; stainless steel ATC probe; Star stirrer probe; Fluoride standards, 1, 2, and 10 ppm w/ TISABII, 475 mL of each; TISABII solution, 1 gallon; Electrode arm w/ redesigned holder; Universal power adapter
Kit for Sodium ROSS Ultra pH electrode; ROSS sodium ISE; stainless steel ATC probe; Star stirrer probe; Electrode arm w/ redesigned holder; Universal power adapter
A215 pH/ORP/Cond/Temp ROSS Ultra Triode; DuraProbe conductivity cell; ROSS solution kit (475 mL each of pH 4, 7, 10 buffers; storage solution; cleaning solution; pH electrode storage bottle); Conductivity standard, 1413 μS, 5 x 60 mL; Electrode arm w/ redesigned holder; Universal power adapter
A216 pH/ORP/RDO/DO/Temp ROSS Ultra Triode; Polarographic DO probe w/ calibration sleeve; DO probe maintenance kit; BOD funnel/stirrer; BOD adapter; ROSS solution kit (475 mL each of pH 4, 7, 10 buffers; storage solution; cleaning solution; pH electrode storage bottle); Electrode arm w/ redesigned holder; Universal power adapter

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Cat # Model Measures Units Of Measure Availability Price Quantity
EF9437NSTARA1116
A111 Kit w/ TRIS-compatible Electrode pH
Ships By: 12/28/2017
  • $987.95
  • List: $1,109.00
EF9437ASTARA1110
A111 pH
In stock (1)
  • $629.95
  • List: $707.00
EF9437BSTARA1115
A111 Kit pH
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  • $930.95
  • List: $1,044.00
EF9437ESTARA1120
A112 Conductivity
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  • $957.95
  • List: $1,075.00
EF9437FSTARA1125
A112 Kit Conductivity
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  • $1,275.95
  • List: $1,432.00
EF9437JSTARA1130
A113 DO
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  • $1,013.95
  • List: $1,137.00
EF9437KSTARA1135
A113 Kit DO
Ships By: 12/28/2017
  • $1,783.95
  • List: $2,001.00
EF9438ASTARA2110
A211 pH
Ships By: 12/28/2017
  • $979.95
  • List: $1,100.00
EF9438AASTARA2115
A211 Kit pH
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  • $1,332.95
  • List: $1,495.00
EF9438CSTARA2120
A212 Conductivity
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  • $1,303.95
  • List: $1,463.00
EF9438CASTARA2125
A212 Kit Conductivity
Ships By: 12/28/2017
  • $1,624.95
  • List: $1,823.00
EF9438CBSTARA2126
A212 Kit for Ultrapure Water Conductivity
In stock (1)
  • $1,685.95
  • List: $1,892.00
EF9438ESTARA2130
A213 RDO/DO
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  • $1,591.95
  • List: $1,786.00
EF9438EASTARA2135
A213 Kit RDO/DO
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  • $2,407.95
  • List: $2,702.00
EF9438EBSTARA2136
A213 Kit w/ Self-Stirring Probe RDO/DO
Ships By: 12/28/2017
  • $2,757.95
  • List: $3,095.00
EF9438GSTARA2140
A214 pH/ISE
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  • $1,533.95
  • List: $1,721.00
EF9438GASTARA2145
A214 Kit pH/ISE
Ships By: 12/28/2017
  • $2,168.95
  • List: $2,434.00
EF9438GBSTARA2146
A214 Kit for Ammonia pH/ISE
Ships By: 12/28/2017
  • $2,916.95
  • List: $3,273.00
EF9438GCSTARA2147
A214 Kit for Fluoride pH/ISE
Ships By: 12/28/2017
  • $3,129.95
  • List: $3,512.00
EF9438GDSTARA2148
A214 Kit for Sodium pH/ISE
Ships By: 12/28/2017
  • $2,693.95
  • List: $3,022.00
EF9438HSTARA2150
A215 pH/Cond
Ships By: 12/28/2017
  • $1,634.95
  • List: $1,834.00
EF9438HASTARA2155
A215 Kit pH/Cond
Ships By: 12/28/2017
  • $2,358.95
  • List: $2,647.00
EF9438JSTARA2160
A216 pH/RDO/DO
Ships By: 12/28/2017
  • $1,793.95
  • List: $2,012.00
EF9438JASTARA2165
A216 Kit pH/RDO/DO
Ships By: 12/28/2017
  • $3,136.95
  • List: $3,520.00
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