Dual parameter meters designed for your routine field ion measurements
Take your measurements outdoors. Take your pH and ion concentration (ISE) measurements in the field without sacrificing accuracy and reliability. Thermo Scientific Orion Star A320 series of portable pH and ISE meters offer a rugged, waterproof design for dependable performance on location.
|Orion Star A329 pH/ISE
|Orion Star A324 pH/ISE
|Versatile, powerful, multiparameter meter||Rugged and dependable multi-parameter meter|
|Industrial—waste water, drinking water, food & beverage; Environmental—lakes, ponds||Industrial—waste water, cooling tanks; Environmental—lakes, ponds|
|pH range||–2.000 to 20.000||–2.000 to 20.000|
|pH relative accuracy||±0.002||±0.002|
|pH calibration points||Up to 5||Up to 5|
|pH calibration editing||Yes||Yes|
|Range (mV)||±2000.0 mV||±2000.0 mV|
|Resolution (mV)||0.1 mV||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|
|EH ORP mode||Yes||Yes|
|Range (ISE)||0.0001 to 19,900||0.0001 to 19,900|
|Resolution (ISE)||0.0001 minimum, auto ranging, up to 3 significant digits (user selectable)||0.0001 minimum, auto ranging, up to 3 significant digits (user selectable)|
|Relative accuracy (ISE)||±0.2 mV or ±0.05% of reading, whichever is greater||±0.2 mV or ±0.05% of reading, whichever is greater|
|Units||ppm, M, mg/L, %, ppb, none||ppm, M, mg/L, %, ppb, none|
|Calibration points||Up to 5||Up to 5|
|Calibration features||Linear point to point, non-linear selectable auto-blank, low concentration range stability||Linear point to point, non-linear selectable auto-blank, low concentration range stability|
|Range (temperature)||–5 to 105ºC, 23 to 221ºF||–5 to 105ºC, 23 to 221ºF|
|Resolution (temperature)||0.1ºC, 0.1ºF||0.1ºC, 0.1ºF|
|Relative accuracy (temperature)||±0.1ºC, ±0.1ºF||±0.1ºC, ±0.1ºF|
|Temperature offset calibration||1 point||1 point|
|Number of datalogs||5,000 with time and date stamp||5,000 with time and date stamp|
|Log function||Manual, ready (includes AUTOREAD), timed||Manual, ready, (includes AUTO-READ), timed|
|pH electrode or ISE||BNC, reference pin||BNC, reference pin|
|Conductivity or ATC probe||8-pin mini DIN||8-pin mini-DIN|
|DO probe||9-pin mini-DIN||--|
|Outputs||RS232, USB||RS232, USB|
|AC adapter||Optional—universal, 100–240VAC||Optional—universal, 100-240VAC|
|Battery power||Included—4AAs||Included—4 AAs|
|Battery life||800 hrs||800 hrs|
|Enhance your productivity with accessories for your benchtop and portable meters. Meter Accessories ›|
Complete your ISE measurements faster
We offer a range of ISE measurement instrumentation and accessories designed to meet your requirements for performance and price. Our ISE meters, probes, and standards are designed to offer maximum repeatability and accuracy in your ISE readings.
Our wide selection of electrochemical probes, sensors, and electrodes are designed to make your complex measurements routine, reliable, and accurate—in the lab or in the field. Available in a variety of body materials, body styles, and sample requirements.
Choose the best electrode for your application
This interactive Orion electrode selection guide will help you to find the perfect electrode for your application based on your requirements.
Knowledge Base: Certificates of Analysis and SDS for Orion, ROSS, AQUAfast, AquaMate, and AquaSensors products.
Orion Meters Software and Upgrades
Thermo Scientific Orion benchtop and portable meters are designed to help deliver accurate, consistent results, day after day. Boost productivity by upgrading your software today.