pH Measurement, pH meters, pH electrodes

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International manufacturer and supplier

Beckman-Coulter
Benchtop pH Meters - [d, e, es, f]

Cole-Parmer
pH Control; pH Electrodes; pH Meters; pH Test Strips - [d, e]

Eutech Instruments / Thermo Scientific
... offers a wide range of pH meters that measure pH values in various educational, laboratory and industrial applications - [e]

Metrohm
Meters for pH, ion concentrations and conductivity. The web site shows you how to find the right electrode, pH meter and accessories for your application - [e]

Mettler Toledo
pH Instruments - [e]

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Germany

Ebro
Herstellung hochgenauer, portabler Messgeräte für Temperatur, Druck, Feuchte, pH-Wert, Öl, Salz sowie alle physikalischen Größen - [d, e, f, cn, ...]

Jumo
pH- und Redox-Elektroden, Leitfähigkeitsmesszellen, Mess- und Regelgeräte für pH und Redox, Leitfähigkeit, Reinstwasser und Sauerstoff, Sensoren, Armaturen für Messwertaufnehmer - [d, e]

Kuntze GmbH
... entwickelt seit mehr als 60 Jahren Mess- und Regeltechnik für die online Analyse wässriger Lösungen - [d, e]

LHG - Laborgeräte Handelsgesellschaft mbH
pH-Meter - [d]

Schott Instruments GmbH
IoLine pH-Elektroden für die schwierigsten Messaufgaben - [d, e]

Testo AG
Einhand pH/°C-Messgeräte; Gerätesets - [d]

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United States of America, USA

Hamilton
pH and Redox electrodes with glass or epoxy shafts - [e]

Harvard Apparatus
Portable pH meters - [e]

HM Digital
… makes pH, conductivity and ORP meter that are very accurate, reliable, super easy to use, and offer the best value - [e]

IQ Scientific Instruments, Inc.
The ISFET pH Source for Rugged Benchtop, Handheld and Pocket-sized pH Meters with Stainless Steel pH Probes - [e]

MBH Engineering Systems
pH meters, pH probes, pH controllers and much more - [e]

Milwaukee Instruments, Inc.
Manufacturers of quality instruments for measuring pH, EC, TDS, ORP, Dissolved Oxygen meters and testers - [e]

Pinnacle
Nova Analytics Corporation: portable pH meters - [e]

ThermoWorks
pH Meters - [e]

Weiss Research, Inc.
... your high quality, inexpensive laboratory and industrial processing pH, ORP (Redox), Ion-Selective electrode (ISE) Headquarters - [e]

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United Kingdom

Digital Meters
Low cost pH meters - [e]

Endress+Hauser
... is a leading supplier of measuring instruments and automation solutions for the industrial process engineering industry - [e]

Jencons (Scientific) Limited
... is a leading laboratory equipment supplier in the UK and offers a wide range of pH Meters - [e]

Jenway
... is a leading U.K company designing and manufacturing high quality scientific instrumentation - [e]

Palintest
The Palintest Micro 500 pH Meter combines pH and temperature measurement with millivolt readout for oxidation-reduction potential and specific ion electrodes - [e]

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European Union

Crison Instruments, SA
Manufacturer of quality pH measuring equipment in Spain - [es, e]

Radiometer Analytical SAS
A complete range of meters for reliable pH, mV, Ion and Conductivity measurements - [e, f]

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China

Shenzhen Kedida Co., Ltd.
... is professional manufacturer and exporter for various industry instruments and pH meters - [cn, e]

Other notes:

Related Books and Scientific Literature: pH Measurement:

Günther Meinrath, Petra Schneider

Metrology from pH Measurement to Nuclear Waste Disposal
Quality Assurance for Chemistry and Environmental Science

Metrological concepts like traceability or measurement uncertainty form important parts of international treaties and normative documents. Their applications e.g. in chemical or food analysis or in environmental monitoring are entering our daily life. The development of those concepts has been driven by demand on a world-wide scale from trade, industry and the legal systems. In the future, no chemist, geochemist, chemical , civil or environmental engineer and no other specialist dealing with chemical measurement data, and no decision maker, neither in trade and industry, in public or medical services, in the political and diplomatic arenas or in academic research can afford not to become acquainted with metrology, its concepts and impact.

This book provides a basic overview over the relevant metrological concepts like traceability, ISO uncertainties or cause-and-effect diagrams. The applications described in great detail range from progression-of-error type evaluation of the measurement uncertainty budget to complex applications like pH measurement or speciation calculations for aqueous solutions. The consequences of a measurement uncertainty concept for chemical data are outlined for geochemical modeling applied to transport in the subsurface and to nuclear waste disposal. Special sections deal with the deficits of existing thermodynamic data for these applications and with the current position of chemical metrology in respect to other quality assurance measures, e.g. ISO 900x, GLP, European and U.S.-American standards. The CD-ROM accompanying the book provides two illustrative programmes (for IBM PCs and derivatives; with manuals and example data sets) and important official documents and guides in PDF format.

Springer; 2007