Ion Specific (ISE) Meters

Perform your ISE measurements with confidence

High-quality benchtop and portable ISE meters are essential to the routine ion measurements you perform every day. The benchtop and portable meters for ion concentration and temperature analysis are design to help you measure samples across a wide range of applications and deliver the features and functionality you look for in a lab or field instrument:

Accurate, consistent results – day after day
Easy-to-use features that maximize productivity and minimize training time
A wide selection of benchtop and portable meters meet your application requirements and budget
Durable construction for long product life
Modular meter designs for maximum configuration flexibility and functional expandability to help address your evolving requirements
Integration with our line of Thermo Scientific™ ROSS™ electrodes - offering a complete solution with total confidence

Our meters, electrodes, buffers, standards, and solutions are designed for a number of applications and industries:

General laboratory testing
R&D
Government compliance
Wastewater treatment

Pharmaceutical
Power generation
Drinking water

Food & beverage testing
Environment
General industrial processing

Find an ISE Meter

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	Premium	Advanced	Basic
	Orion Versa Star Pro pH/ISE (VSTAR40 series)	Orion Dual Star pH/ISE Dual Channel (2115000 series)	Orion Star A214 pH/ISE (STARA2140 series)

	Versatile, high-performance laboratory measurement system	Easy to use, dependable laboratory meters	Economical, simplified laboratory meters
Ideal for applications in:	Pharmaceuticals, biotechnology, food and beverage, industrial	Water, wastewater, chemical, contract testing	Academic, environmental, power
pH range	–2.000 to 20.000	–2.000 to 19.999	–2.000 to 20.000
pH resolution	0.001/0.01/0.1	0.001/0.01/0.1	0.001/0.01/0.1
pH calibration points	Up to 6	Up to 6	Up to 5
Automatic buffer sets	USA/NIST, DIN, or Custom	USA/NIST or DIN	USA/NIST or DIN
mV, RmV modes	Yes	Yes	Yes
ISE range	0.0001 to 19990	0.0001 to 19900	0.0001 to 19900
Incremental techniques	Single known addition or subtraction, double known addition or subtraction, analyte (sample) addition or subtraction	Single known addition or subtraction, double known addition or subtraction	---
Temperature range	-5 to 105 °C, 22 to 221 °F	-5 to 105 ºC, 23 to 221 ºF	-5 to 105 ºC, 23 to 221 ºF
Number of channels	4, customizable with modules	2	1
Stirrer probe inputs	2	1	1
Data log	2,000 with date/time	1,000 with date/time	2,000 with date/time
Calibration log	30 per mode	10	10
Identification options	Electrode ID, sample ID, user ID	Electrode ID, sample ID	Sample ID, user ID
Data export options	USB (2), RS232	USB, RS232	USB, RS232
Power supply	Universal, 100–240VAC, 50–60Hz (Cat. No. STARA-PWR)	Universal, 100–240VAC, 50–60Hz (Cat. No. 1010003)	Universal, 100–240VAC, 50–60Hz (Cat. No. 1010003) or 4 AA batteries
Enhance your productivity with accessories for your benchtop and portable meters. Meter Accessories ›

	Premium	Advanced
	Orion Star A329 pH/ISE (STARA3290 series)	Orion Star A324 pH/ISE (STARA3240 series)

	Versatile, powerful, multiparameter meter	Rugged and dependable multi-parameter meter
Ideal for applications in:	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 resolution	0.1/0.01/0.001	0.1/0.01/0.001
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 editing	Yes	Yes
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 ›

Orion Bench Meter

	Premium	Advanced	Basic
	Orion Versa Star Pro pH/ISE (VSTAR40 series)	Orion Dual Star pH/ISE Dual Channel (2115000 series)	Orion Star A214 pH/ISE (STARA2140 series)

	Versatile, high-performance laboratory measurement system	Easy to use, dependable laboratory meters	Economical, simplified laboratory meters
Ideal for applications in:	Pharmaceuticals, biotechnology, food and beverage, industrial	Water, wastewater, chemical, contract testing	Academic, environmental, power
pH range	–2.000 to 20.000	–2.000 to 19.999	–2.000 to 20.000
pH resolution	0.001/0.01/0.1	0.001/0.01/0.1	0.001/0.01/0.1
pH calibration points	Up to 6	Up to 6	Up to 5
Automatic buffer sets	USA/NIST, DIN, or Custom	USA/NIST or DIN	USA/NIST or DIN
mV, RmV modes	Yes	Yes	Yes
ISE range	0.0001 to 19990	0.0001 to 19900	0.0001 to 19900
Incremental techniques	Single known addition or subtraction, double known addition or subtraction, analyte (sample) addition or subtraction	Single known addition or subtraction, double known addition or subtraction	---
Temperature range	-5 to 105 °C, 22 to 221 °F	-5 to 105 ºC, 23 to 221 ºF	-5 to 105 ºC, 23 to 221 ºF
Number of channels	4, customizable with modules	2	1
Stirrer probe inputs	2	1	1
Data log	2,000 with date/time	1,000 with date/time	2,000 with date/time
Calibration log	30 per mode	10	10
Identification options	Electrode ID, sample ID, user ID	Electrode ID, sample ID	Sample ID, user ID
Data export options	USB (2), RS232	USB, RS232	USB, RS232
Power supply	Universal, 100–240VAC, 50–60Hz (Cat. No. STARA-PWR)	Universal, 100–240VAC, 50–60Hz (Cat. No. 1010003)	Universal, 100–240VAC, 50–60Hz (Cat. No. 1010003) or 4 AA batteries
Enhance your productivity with accessories for your benchtop and portable meters. Meter Accessories ›

Orion Portable Meter

	Premium	Advanced
	Orion Star A329 pH/ISE (STARA3290 series)	Orion Star A324 pH/ISE (STARA3240 series)

	Versatile, powerful, multiparameter meter	Rugged and dependable multi-parameter meter
Ideal for applications in:	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 resolution	0.1/0.01/0.001	0.1/0.01/0.001
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 editing	Yes	Yes
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 ›

Explore versatile meters that combine testing capabilities

Measure pH, ion concentration, conductivity, dissolved oxygen, and temperature with a single, powerful meter. Our bench and portable multiparameter meters are designed to increase your productivity in the lab and in the field.

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Meter accessories

Bench meter and portable meter accessories make help protect you and your instruments by simplifying repetitive tasks and providing secure storage and transportation.

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Thermo Scientific Featured ISE Meters

Ease-of-use with Orion multiparameter meters

Focused on
Ease-of-Use

Large, easy-to-view displays help make recording measurements easier, faster and can help reduce documentation errors
Onscreen instructions provide guidance on calibration and setup for more consistent operation with minimum training

Reliable electrochemistry measurements in the field

Provide Fast and Reliable Measurements

Selectable read modes and reading stability indicator capture and notify when measurements are ready
Calibration information shown with measurements and selectable alarms help to ensure measurement integrity

Assist with Compliance Requirements

Measure ion concentration with temperature
Perform up to a six point ion concentration calibration with selectable units and adjustable stability criteria
Select a meter with incremental techniques to perform known addition, known subtraction, analyte (sample) addition or subtraction analysis

Optimize your ISE measurement process

Whether working in food and beverage, pharmaceuticals, energy and power, education, government, or water and wastewater management, you can count on Thermo Scientific Orion ISE meters to help you meet regulatory standards, ensure quantity control protocols are met, achieve your safety goals, and accelerate your path from challenge to solution.

Learn more about the regulatory requirements the benchtop and portable meters can assist with.

Regulatory requirements

International standards for regulatory compliance requirements:

Parameter	EPA	SM	ASTM	ISO	China MEP	USP	EP	AOAC	Other
pH	EPA 150.1	4500-H+(B)	D1293 (A,B)	10523	GB/T 6920	<791>	2.2.3	973.41	FDA - 21 CFR 114.90
pH of Soil/Solid Waste	SW-846 9040C & 9045D		D4972	10390	GB/T15555			994.16 - 994.18	USDA NRCS
Conductivity	EPA 120.1; SW-846 9050A	2510 (B)	D1125 (A)	7888	n/a	<645>	2.2.38	973.40	PSS-78 (salinity)
Dissolved Oxygen		4500-O (G)	D888 (B, C)	17289; 5814	HJ506
BOD		5210 (B)		5815	HJ505			973.44
Fluoride	SW-846 9214	4500-F (C )	D1179 (B)	10359	GB7484
Ammonia		4500-NH3 (D, E)	D1426 (B)	6778
Nitrate	Orion 601; SW-846 9210A	4500-NO3 (D)
Sulfide	SW-846 9215	4500-S2 (G)	D4658
Cyanide	SW-846 9213	4500-CN (F)	D2036 (A)
Chloride	SW-846 9212	4500-Cl (D)	D512 (C)		GB11896
Bromide	SW-846 9211

	SM: Standard Methods for the Examination of Water and Wastewater. APHA, AWWA, WEF.
	ASTM: American Society for the Testing and Materials
	ISO: International Organization for Standardization
	USP: United States Pharmacopeia
	EP: European Pharmacopeia
	China MEP: China Ministry of Environmental Protection
	AOAC: Association of Official Analytical Chemists
	NRCS: Natural Resources Conservation Service
	PSS-78: Practical Salinity Scale of 1978
	FDA: U.S. Food and Drug Administration
	USDA: United Stated Department of Agriculture

Virtual Demo

Get answers to your top water analysis and water purification questions and see products in action. Sign up for a demo to learn about:

· pH & Multiparameter Benchtop & Portable Meters
· Electrodes (pH Electrodes, ISE, Conductivity, DO)
· Potentiometric Titrators
· Spectrophotometers
· Water Purification Systems

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Electrodes, Standards and Solutions

Quality pH electrodes, standards and solutions are available for a variety of body materials, body styles, fill types, references styles, and functions to meet your needs.

Resources

Support

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.

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Perform your ISE measurements with confidence

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