Thermo Scientific™

Orion Star™ A325 pH/Conductivity Portable Multiparameter Meter

Catalog number: STARA3255
Thermo Scientific™

Orion Star™ A325 pH/Conductivity Portable Multiparameter Meter

Catalog number: STARA3255

Get high accuracy and premium performance everywhere you need it with the Thermo Scientific™ Orion Star™ A325 pH/Conductivity Portable Multiparameter Meter. This meter is designed for a wide range of pH, mV, ORP, conductivity, total dissolved solids (TDS), salinity, resistivity and temperature testing and field applications. Evaluate samples in the most demanding locations using this waterproof meter with IP67-rated housing. Use the two channels to measure pH and conductivity simultaneously or view each channel separately. Log up to 5000 data point sets with time/date stamp and transfer logs to a printer or computer.

 
Catalog Number
STARA3255
Unit Size
Each
Description
Orion Star A325 pH/conductivity portable meter kit with ROSS Ultra Triode low maintenance gel pH/ATC electrode, DuraProbe 4-cell conductivity sensor, solutions, meter armor and field case
Includes
Orion STAR A325 pH/conductivity portable meter; 8107UWMMD Orion ROSS Triode pH/ATC gel-filled electrode with 3m cable; 013010MD Orion DuraProbe conductivity cell with 3m cable; 910410 pH 4.01 buffer pouches, pack of 10; 910710 pH 7.00 buffer pouches, pack of 10; 911010 pH 10.01 buffer pouches, pack of 10; 01100710 conductivity standard pouches, 1413 uS; 911110 rinse solution, pack of 10; protective armor with electrode holder; hard carrying case and batteries
Price (USD)
2,355.00
Online Offer: 1,884.00
(ends 30-Jun-2022)
Your Price:
Availability
***
Full specifications
Quantity
AC AdapterUniversal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)
Accuracy (Conductivity)0.5% of reading ±1 digit > 3 μS; 0.5% of reading ±0.01 μS ≤ 3 μS
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 (mV)±0.2 mV or ±0.05% of reading whichever is greater
Accuracy (pH)±0.002
Alarm OutputHigh/low limit alarm, calibration due alarm
Backlight OptionYes, selectable
Battery Life800 hr.
Battery Type4 AA (included)
CalibrationpH with calibration editing option, relative mV (RmV), ORP, conductivity with calibration editing op
Calibration Points1 point relative mV (RmV) mode, 1 point ORP mode
Calibration Points (Conductivity)Up to 5
Calibration Points (pH)1 to 5
Cell Constant0.001 to 199.9cm-1
Certifications/ComplianceCE, TUV 3-1, FCC Class A
Data Management DetailsTransfer single, range or all data points to printer or computer
Data Points5000 with date and time stamp
DescriptionOrion Star A325 pH/conductivity portable meter kit with ROSS Ultra Triode low maintenance gel pH/ATC electrode, DuraProbe 4-cell conductivity sensor, solutions, meter armor and field case
Dimensions (L x W x H)24cm x 10cm x 6.5cm (9.5 in. x 3.9 in. x 2.6 in.)
IncludesOrion STAR A325 pH/conductivity portable meter; 8107UWMMD Orion ROSS Triode pH/ATC gel-filled electrode with 3m cable; 013010MD Orion DuraProbe conductivity cell with 3m cable; 910410 pH 4.01 buffer pouches, pack of 10; 910710 pH 7.00 buffer pouches, pack of 10; 911010 pH 10.01 buffer pouches, pack of 10; 01100710 conductivity standard pouches, 1413 uS; 911110 rinse solution, pack of 10; protective armor with electrode holder; hard carrying case and batteries
InputsBNC (pH or ORP electrode), pin-tip (reference electrode), 8 pin MiniDIN (conductivity sensor with built-in temperature or ATC temperature probe)
Isopotential Point7.000pH
KeypadComprehensive with menu-specific function keys and dual purpose scroll/shortcut keys
LanguagesEnglish, Spanish, French, Italian, German and Chinese; Portuguese and Korean available with software update
Log Function TypeAutomatic data logging with Auto-Read and Timed measure modes; manual data logging with Continuous m
MemoryNon-volatile memory preserves data log, calibration log and meter settings
Methods10 per channel with password protection
ModelOrion Star A325 pH/mV/RmV/ORP/Conductivity/TDS/Salinity/Resistivity/Temperature Portable Meter
Power Supply4 AA batteries (included) or universal AC adapter (sold separately)
Range (ORP)±2000.0 mV
Range (Relative mV)±2000.0 mV
Relative Humidity Range5 to 85 %, non-condensing
Resolution (Conductivity)0.001 μS minimum, auto ranging up to 4 significant digits
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 (mV)0.1mV
Salinity Measurement ModesPractical salinity (psu) or natural sea water (ppt)
StabilitySelectable fast, medium, slow or Smart Stability setting; Selectable off or Automatic Smart averaging setting
TDS Factor RangeLinear (0.02 to 9.99)
Temperature Accuracy±0.1°C
Temperature CompensationLinear, nLFn (non-linear ultra pure water), nLFu (non-linear ultra pure degassed water), EP (off with warning) or off
Temperature (English) Operating41°F to 113°F (ambient)
Temperature (Metric) Operating5°C to 45°C (ambient)
Temperature (Metric) Reference5, 10, 15, 20, 25°C
Temperature Probe Calibration1 point temperature offset calibration
Temperature Range (English)22.0°F to 221.0° F
Temperature Resolution0.1°C, 0.1°F
Temperature SelectionManual or automatic with ATC temperature probe
Warranty3 Year Meter
Weight (English)1.2 lb.
Weight (Metric)0.5 kg
Channels2
Display TypeLCD Graphic, Backlit
IP RatingIP 67
Measurement ModespH, mV, relative mV (RmV) or ORP with temperature; conductivity, TDS, salinity or resistivity with t
OutputsUSB, RS232
Range (Conductivity)0.001 μS/cm to 3000 mS/cm
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 (mV)±2000.0 mV
Range (pH)-2.000 to 20.000
Resolution (pH)0.1/0.01/0.001
Temperature Range (Metric)-5.0°C to +105.0°C
Unit SizeEach
Catalog Number
Unit Size
Each
Description
Orion Star A325 pH/conductivity portable meter
Includes
Star A325 pH/conductivity meter, 4 AA batteries, literature CD, printed quick start guide, computer interface cable and meter test certificate
Price (USD)
1,393.00
Your Price:
Availability
***
Full specifications
Quantity
AC AdapterUniversal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)
Accuracy (Conductivity)0.5% of reading ±1 digit > 3 μS; 0.5% of reading ±0.01 μS ≤ 3 μS
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 (mV)±0.2 mV or ±0.05% of reading whichever is greater
Accuracy (pH)±0.002
Alarm OutputHigh/low limit alarm, calibration due alarm
Backlight OptionYes, selectable
Battery Life800 hr.
Battery Type4 AA (included)
CalibrationpH with calibration editing option, relative mV (RmV), ORP, conductivity with calibration editing op
Calibration Points1 point relative mV (RmV) mode, 1 point ORP mode
Calibration Points (Conductivity)Up to 5
Calibration Points (pH)1 to 5
Cell Constant0.001 to 199.9cm-1
Certifications/ComplianceCE, TUV 3-1, FCC Class A
Data Management DetailsTransfer single, range or all data points to printer or computer
Data Points5000 with date and time stamp
DescriptionOrion Star A325 pH/conductivity portable meter
Dimensions (L x W x H)24cm x 10cm x 6.5cm (9.5 in. x 3.9 in. x 2.6 in.)
IncludesStar A325 pH/conductivity meter, 4 AA batteries, literature CD, printed quick start guide, computer interface cable and meter test certificate
InputsBNC (pH or ORP electrode), pin-tip (reference electrode), 8 pin MiniDIN (conductivity sensor with built-in temperature or ATC temperature probe)
Isopotential Point7.000pH
KeypadComprehensive with menu-specific function keys and dual purpose scroll/shortcut keys
LanguagesEnglish, Spanish, French, Italian, German and Chinese; Portuguese and Korean available with software update
Log Function TypeAutomatic data logging with Auto-Read and Timed measure modes; manual data logging with Continuous m
MemoryNon-volatile memory preserves data log, calibration log and meter settings
Methods10 per channel with password protection
ModelOrion Star A325 pH/mV/RmV/ORP/Conductivity/TDS/Salinity/Resistivity/Temperature Portable Meter
Power Supply4 AA batteries (included) or universal AC adapter (sold separately)
Range (ORP)±2000.0 mV
Range (Relative mV)±2000.0 mV
Relative Humidity Range5 to 85 %, non-condensing
Resolution (Conductivity)0.001 μS minimum, auto ranging up to 4 significant digits
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 (mV)0.1mV
Salinity Measurement ModesPractical salinity (psu) or natural sea water (ppt)
StabilitySelectable fast, medium, slow or Smart Stability setting; Selectable off or Automatic Smart averaging setting
TDS Factor RangeLinear (0.02 to 9.99)
Temperature Accuracy±0.1°C
Temperature CompensationLinear, nLFn (non-linear ultra pure water), nLFu (non-linear ultra pure degassed water), EP (off with warning) or off
Temperature (English) Operating41°F to 113°F (ambient)
Temperature (Metric) Operating5°C to 45°C (ambient)
Temperature (Metric) Reference5, 10, 15, 20, 25°C
Temperature Probe Calibration1 point temperature offset calibration
Temperature Range (English)22.0°F to 221.0° F
Temperature Resolution0.1°C, 0.1°F
Temperature SelectionManual or automatic with ATC temperature probe
Warranty3 Year Meter
Weight (English)1.2 lb.
Weight (Metric)0.5 kg
Channels2
Display TypeLCD Graphic, Backlit
IP RatingIP 67
Measurement ModespH, mV, relative mV (RmV) or ORP with temperature; conductivity, TDS, salinity or resistivity with t
OutputsUSB, RS232
Range (Conductivity)0.001 μS/cm to 3000 mS/cm
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 (mV)±2000.0 mV
Range (pH)-2.000 to 20.000
Resolution (pH)0.1/0.01/0.001
Temperature Range (Metric)-5.0°C to +105.0°C
Unit SizeEach
Showing 2 of 2
Catalog NumberSpecificationsUnit SizeDescriptionIncludesPrice (USD)AvailabilityQuantity
STARA3255Full specifications
EachOrion Star A325 pH/conductivity portable meter kit with ROSS Ultra Triode low maintenance gel pH/ATC electrode, DuraProbe 4-cell conductivity sensor, solutions, meter armor and field caseOrion STAR A325 pH/conductivity portable meter; 8107UWMMD Orion ROSS Triode pH/ATC gel-filled electrode with 3m cable; 013010MD Orion DuraProbe conductivity cell with 3m cable; 910410 pH 4.01 buffer pouches, pack of 10; 910710 pH 7.00 buffer pouches, pack of 10; 911010 pH 10.01 buffer pouches, pack of 10; 01100710 conductivity standard pouches, 1413 uS; 911110 rinse solution, pack of 10; protective armor with electrode holder; hard carrying case and batteries
2,355.00
Online Offer: 1,884.00
(ends 30-Jun-2022)
Your Price:
***
AC AdapterUniversal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)
Accuracy (Conductivity)0.5% of reading ±1 digit > 3 μS; 0.5% of reading ±0.01 μS ≤ 3 μS
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 (mV)±0.2 mV or ±0.05% of reading whichever is greater
Accuracy (pH)±0.002
Alarm OutputHigh/low limit alarm, calibration due alarm
Backlight OptionYes, selectable
Battery Life800 hr.
Battery Type4 AA (included)
CalibrationpH with calibration editing option, relative mV (RmV), ORP, conductivity with calibration editing op
Calibration Points1 point relative mV (RmV) mode, 1 point ORP mode
Calibration Points (Conductivity)Up to 5
Calibration Points (pH)1 to 5
Cell Constant0.001 to 199.9cm-1
Certifications/ComplianceCE, TUV 3-1, FCC Class A
Data Management DetailsTransfer single, range or all data points to printer or computer
Data Points5000 with date and time stamp
DescriptionOrion Star A325 pH/conductivity portable meter kit with ROSS Ultra Triode low maintenance gel pH/ATC electrode, DuraProbe 4-cell conductivity sensor, solutions, meter armor and field case
Dimensions (L x W x H)24cm x 10cm x 6.5cm (9.5 in. x 3.9 in. x 2.6 in.)
IncludesOrion STAR A325 pH/conductivity portable meter; 8107UWMMD Orion ROSS Triode pH/ATC gel-filled electrode with 3m cable; 013010MD Orion DuraProbe conductivity cell with 3m cable; 910410 pH 4.01 buffer pouches, pack of 10; 910710 pH 7.00 buffer pouches, pack of 10; 911010 pH 10.01 buffer pouches, pack of 10; 01100710 conductivity standard pouches, 1413 uS; 911110 rinse solution, pack of 10; protective armor with electrode holder; hard carrying case and batteries
InputsBNC (pH or ORP electrode), pin-tip (reference electrode), 8 pin MiniDIN (conductivity sensor with built-in temperature or ATC temperature probe)
Isopotential Point7.000pH
KeypadComprehensive with menu-specific function keys and dual purpose scroll/shortcut keys
LanguagesEnglish, Spanish, French, Italian, German and Chinese; Portuguese and Korean available with software update
Log Function TypeAutomatic data logging with Auto-Read and Timed measure modes; manual data logging with Continuous m
MemoryNon-volatile memory preserves data log, calibration log and meter settings
Methods10 per channel with password protection
ModelOrion Star A325 pH/mV/RmV/ORP/Conductivity/TDS/Salinity/Resistivity/Temperature Portable Meter
Power Supply4 AA batteries (included) or universal AC adapter (sold separately)
Range (ORP)±2000.0 mV
Range (Relative mV)±2000.0 mV
Relative Humidity Range5 to 85 %, non-condensing
Resolution (Conductivity)0.001 μS minimum, auto ranging up to 4 significant digits
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 (mV)0.1mV
Salinity Measurement ModesPractical salinity (psu) or natural sea water (ppt)
StabilitySelectable fast, medium, slow or Smart Stability setting; Selectable off or Automatic Smart averaging setting
TDS Factor RangeLinear (0.02 to 9.99)
Temperature Accuracy±0.1°C
Temperature CompensationLinear, nLFn (non-linear ultra pure water), nLFu (non-linear ultra pure degassed water), EP (off with warning) or off
Temperature (English) Operating41°F to 113°F (ambient)
Temperature (Metric) Operating5°C to 45°C (ambient)
Temperature (Metric) Reference5, 10, 15, 20, 25°C
Temperature Probe Calibration1 point temperature offset calibration
Temperature Range (English)22.0°F to 221.0° F
Temperature Resolution0.1°C, 0.1°F
Temperature SelectionManual or automatic with ATC temperature probe
Warranty3 Year Meter
Weight (English)1.2 lb.
Weight (Metric)0.5 kg
Channels2
Display TypeLCD Graphic, Backlit
IP RatingIP 67
Measurement ModespH, mV, relative mV (RmV) or ORP with temperature; conductivity, TDS, salinity or resistivity with t
OutputsUSB, RS232
Range (Conductivity)0.001 μS/cm to 3000 mS/cm
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 (mV)±2000.0 mV
Range (pH)-2.000 to 20.000
Resolution (pH)0.1/0.01/0.001
Temperature Range (Metric)-5.0°C to +105.0°C
Unit SizeEach
STARA3250Full specifications
EachOrion Star A325 pH/conductivity portable meterStar A325 pH/conductivity meter, 4 AA batteries, literature CD, printed quick start guide, computer interface cable and meter test certificate
1,393.00
Your Price:
***
AC AdapterUniversal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)
Accuracy (Conductivity)0.5% of reading ±1 digit > 3 μS; 0.5% of reading ±0.01 μS ≤ 3 μS
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 (mV)±0.2 mV or ±0.05% of reading whichever is greater
Accuracy (pH)±0.002
Alarm OutputHigh/low limit alarm, calibration due alarm
Backlight OptionYes, selectable
Battery Life800 hr.
Battery Type4 AA (included)
CalibrationpH with calibration editing option, relative mV (RmV), ORP, conductivity with calibration editing op
Calibration Points1 point relative mV (RmV) mode, 1 point ORP mode
Calibration Points (Conductivity)Up to 5
Calibration Points (pH)1 to 5
Cell Constant0.001 to 199.9cm-1
Certifications/ComplianceCE, TUV 3-1, FCC Class A
Data Management DetailsTransfer single, range or all data points to printer or computer
Data Points5000 with date and time stamp
DescriptionOrion Star A325 pH/conductivity portable meter
Dimensions (L x W x H)24cm x 10cm x 6.5cm (9.5 in. x 3.9 in. x 2.6 in.)
IncludesStar A325 pH/conductivity meter, 4 AA batteries, literature CD, printed quick start guide, computer interface cable and meter test certificate
InputsBNC (pH or ORP electrode), pin-tip (reference electrode), 8 pin MiniDIN (conductivity sensor with built-in temperature or ATC temperature probe)
Isopotential Point7.000pH
KeypadComprehensive with menu-specific function keys and dual purpose scroll/shortcut keys
LanguagesEnglish, Spanish, French, Italian, German and Chinese; Portuguese and Korean available with software update
Log Function TypeAutomatic data logging with Auto-Read and Timed measure modes; manual data logging with Continuous m
MemoryNon-volatile memory preserves data log, calibration log and meter settings
Methods10 per channel with password protection
ModelOrion Star A325 pH/mV/RmV/ORP/Conductivity/TDS/Salinity/Resistivity/Temperature Portable Meter
Power Supply4 AA batteries (included) or universal AC adapter (sold separately)
Range (ORP)±2000.0 mV
Range (Relative mV)±2000.0 mV
Relative Humidity Range5 to 85 %, non-condensing
Resolution (Conductivity)0.001 μS minimum, auto ranging up to 4 significant digits
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 (mV)0.1mV
Salinity Measurement ModesPractical salinity (psu) or natural sea water (ppt)
StabilitySelectable fast, medium, slow or Smart Stability setting; Selectable off or Automatic Smart averaging setting
TDS Factor RangeLinear (0.02 to 9.99)
Temperature Accuracy±0.1°C
Temperature CompensationLinear, nLFn (non-linear ultra pure water), nLFu (non-linear ultra pure degassed water), EP (off with warning) or off
Temperature (English) Operating41°F to 113°F (ambient)
Temperature (Metric) Operating5°C to 45°C (ambient)
Temperature (Metric) Reference5, 10, 15, 20, 25°C
Temperature Probe Calibration1 point temperature offset calibration
Temperature Range (English)22.0°F to 221.0° F
Temperature Resolution0.1°C, 0.1°F
Temperature SelectionManual or automatic with ATC temperature probe
Warranty3 Year Meter
Weight (English)1.2 lb.
Weight (Metric)0.5 kg
Channels2
Display TypeLCD Graphic, Backlit
IP RatingIP 67
Measurement ModespH, mV, relative mV (RmV) or ORP with temperature; conductivity, TDS, salinity or resistivity with t
OutputsUSB, RS232
Range (Conductivity)0.001 μS/cm to 3000 mS/cm
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 (mV)±2000.0 mV
Range (pH)-2.000 to 20.000
Resolution (pH)0.1/0.01/0.001
Temperature Range (Metric)-5.0°C to +105.0°C
Unit SizeEach
Showing 2 of 2
Take your measurements at the source with our premium line of portable meters. The Thermo Scientific Orion Star A325 pH/Conductivity Portable Meter offers an information-rich screen and user-friendly operation. This rugged, waterproof portable meter is ready to tackle the elements with you. Orion Star A325 pH/Conductivity Portable Meters are designed to be easy-to-use, dependable field meters that offer advanced features and functions including a 5000 point date log with sample ID and user ID options, calibration and high/low limit alarms and password-protected measurement methods.
  • Combined convenience with the benefits of a pH meter and conductivity meter in one easy-to-use system
  • Measure pH, mV, relative mV or ORP with temperature on channel one and measure conductivity, TDS, salinity or resistivity with temperature on channel two
  • Easily view individual measurements on a full screen display and quickly toggle to a split screen display to view multiple measurements simultaneously
  • Perform up to a five point pH calibration using automatic buffer recognition of NIST or DIN buffer groups with choice to manually enter custom buffer values
  • Perform up to a 5 point conductivity calibration
  • Calibration editing option allows individual points to be fixed without a full recalibration
  • Auto-ranging conductivity values offer consistent readings across entire measurement range without need to recalibrate
  • Use linear, non-linear, EP (USP) or off conductivity temperature compensation with 5°C, 10°C, 15°C, 20°C or 25°C reference temperatures
  • Informative, easy-to-read backlit graphic display with clear onscreen instructions simplifies operation
  • Capture your critical readings with measurement stability indicator and selectable read modes — Auto-Read holds a stable reading, Continuous shows changing readings with hold option and Timed logs data at specific intervals
  • Data log collects and date/time stamps up to 5000 measurement sets with optional sample ID and user ID
  • Calibration log stores 10 most recent calibrations
  • Non-volatile meter memory ensures your data and settings are protected, even with loss of power
  • Orion Star Com software facilitates data transfer to a computer via USB or RS232 connections
  • Flexible power options with AA batteries or optional universal power adapter
  • IP67-rated housing is waterproof for rugged field operation
  • Meter kits include hard-sided field case and protective meter armor with electrode holders, adjustable wrist/belt strap and built-in meter stand
  • Meters offer CE, TUV 3-in-1 and FCC Class A certifications
  • 3-year replacement warranty

Disclaimer to internal research use restriction: Any restrictions on the purchaser to utilize the product(s) for internal research purposes only does not apply to the product(s) on the web pages associated with this statement.

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Frequently asked questions (FAQs)

Citations & References