This section provides an overview for ph electrodes as well as their applications and principles. Also, please take a look at the list of 51 ph electrode manufacturers and their company rankings. Here are the top-ranked ph electrode companies as of December, 2023: 1.Hamilton Company, 2.Hach Company, 3.YSI Inc..
A pH electrode is an electrode used to measure the pH of an aqueous solution.
The pH value indicates the hydrogen ion activity in a solution, and if the concentration is low, it is almost equal to the value indicated by the ordinary logarithm of the reciprocal of the hydrogen ion concentration.
The pH electrode is the measuring part of the pH meter, and due to the delicate structure of the glass and internal liquid, it is used with a defined expiration date.
Glass electrodes are widely used in places where pH is measured, from research fields such as pharmaceuticals and water quality control to industrial and environmental fields.
There are plastic electrodes that can be used even if there is a risk of breakage. Products that can be used for surface measurement include gels such as agar media, food such as meat, and sheet materials such as cloth and paper are also available.
The glass electrode method measures pH by measuring the difference in potential between a glass electrode and a reference electrode.
A reference electrode with a stable electromotive force is used. The tip of the comparison electrode has a liquid-fluid connection to maintain an electrical connection with the measuring instrument. The liquid entanglement maintains the electrical connection and allows the internal liquid to flow out little by Generally, porous ceramics are used. Potassium chloride solution is used as the internal liquid. The pH can be measured by comparing the electromotive force of this comparison electrode with that of a glass electrode.
A temperature sensor is necessary because pH measurement errors occur depending on temperature.
A compound electrode integrates a glass electrode, a comparison electrode, and a temperature sensor. A composite electrode can measure pH by simply immersing one electrode in the sample to be measured, and is used in many general pH meters because of its relatively easy and convenient structure for handling, cleaning, and other maintenance.
This section describes how to use commonly used composite electrodes.
Preparation for measurements
*Including some distributors, etc.
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Walchem, Iwaki America, Inc., expanded and incorporated in 2013 with headquarters in the USA, is a manufacturer of online analytical instruments and electronic metering pumps used for wastewater systems in swimming pools and spas. The company's tangible product line includes treatment controllers to monitor and regulate various aspects of water treatment processes and water treatment sensors and accessories used to detect chemicals and impurities in water bodies. It also provides cloud-based software tools and instrumentation that integrate with its products. The company offers its know-how to assist clients with customized and full-scope chemical control systems.
YSI, Yellow Springs Instruments is a manufacturer and supplier of water measurement solutions based in Ohio since 1948. The company produces a range of water measurement solutions such as Aquaculture Process Monitors, Sensors, Colorimeters, Photometers, Gas Chromatography Equipment, and more, catering to environmental surveillance, laboratory assessments, and industrial procedures, helping with measuring pH levels, dissolved oxygen, nitrate concentrations, algae presence, and various other parameters. They also encompass underwater and surface vehicles to facilitate surveys for industries like Aquaculture, Ocean and Coastal, Irrigational canals and Turnouts, and Ports and Harbors, The products also cater to Life sciences, Food and beverages, and more.
Broadley-James, founded in 1967 and headquartered in California, United States, is a supplier and manufacturer of pH and dissolved oxygen sensors. Its broad range of products includes cables, bioreactors, transmitters, housings, and single-use pH sensors. The company's offerings are used in industries including biopharmaceuticals, food and beverage production, water treatment, environmental monitoring, and industrial processes. These products enable accurate monitoring and measurement of pH and dissolved oxygen levels in liquids, supporting optimization, quality control, and safety in diverse applications.
Endress+Hauser Group Services AG, established in 1953 with headquarters in Reinach, Switzerland, is a global manufacturer, distributor, and integrator of industrial process solutions for flow, level, pressure, temperature, and digital communications. The company's product line includes portable pH meters, Raman spectroscopic analyzers, electromagnetic flowmeters, hydrostatic level sensors, and application managers (devices). These products are available individually, and custom-process manufacturing turnkey systems can be commissioned. The company serves industries including food processing, chemical processing, agriculture, mining, and energy.
Hamilton Company is a US-based manufacturer of automation and laboratory equipment including process sensors, precision measuring devices, automated liquid handling workstations, and sample management systems. Hamilton's automation solutions include flexible automated liquid handling platforms and pre-configured Assay Ready workstations that are designed for specialized methods. They also offer small liquid handling devices for temperature control, plate sealing to protect microplate-based samples during critical stop points, and barcode reading. The company is also a supplier of laboratory products such as syringes and needles.
Hach Company, a subsidiary of Danaher Corporation (DHR), is an American manufacturer established in 1933 and headquartered in Loveland, Colorado, specializing in analytical instruments and reagents for testing water quality and other liquid solutions. Hach offers a diverse range of products, including chemicals, laboratory equipment and supplies, as well as portable and digital (online) instruments. Specific instruments like spectrophotometers, turbidimeters, and colorimeters are also available. These products are used for various applications, for example in analyzing industrial water to reduce fresh water consumption and validate contaminant removal, and monitoring nutrient for long-term water health using the Real Time Control (RTC) system.
OMEGA Engineering Inc., founded in Norwalk, CT, in 1962 is a manufacturer of products used to measure temperature and humidity, flow and level, and pressure. The company's product portfolio includes thermocouple probes and assemblies, pressure gauges and switches, and air velocity measurement systems, wireless systems and portable optic sensors. The company serves markets including Automotive and Electric Vehicles, Renewable Energy and Energy Storage and Electronics and IT Infrastructure. The company also offers customer services that include support, custom research projects and customized services.
Telatemp Corporation, established in 1972 and based in Anaheim, California, is an American manufacturer of temperature measurement devices. The company’s product lineup includes temperature indicators with diverse models catering to various temperature reading and recording needs. The company also offers tilt indicators and drop records to detect mishandling of packages, along with humidity cards and desiccants designed for use with electronics, equipment, and supplies. A range of thermometers and thermocouples, along with data loggers for humidity and temperature, are also available. The company serves various industries, including automotive, consumer electronics, food, petrochemical, and pharmaceutical, primarily designated for processing, transit, and storage applications.
OHAUS Corporation, established in 1907 and headquartered in Parsippany, New Jersey, USA, is a manufacturer of high-precision balances and scales. Its product range includes analytical balances, portable balances for fieldwork, industrial electronic scales for heavy-duty applications, and mechanical weighing scales. With ISO 9001:2008 certification, OHAUS ensures that its products meet global quality standards, catering to laboratory, education, industrial, and specialty markets worldwide. The company also provides additional support, offering technical guidance, marketing insights, educational resources such as training and webinars to complement its precision products.
Xiamen Innovacera Advanced Materials Co. Ltd. is a ceramic material manufacturer based in Xiamen, Fujian. Certified with ISO 9001: 2008 and ISO 14001:2004, the company offers various materials, including aluminum nitride, boron carbide, and boron nitride. Other ceramic material offerings include silicon carbide, silicon nitride, and zirconia-toughened alumina. The company also manufactures ceramic products, including alumina ceramic heaters, cutting blades, and filling pumps. These products find applications in various industries, including aerospace, research, and food processing. The company further extends its services to ceramic processing, offering rapid prototyping, grinding, and metallization to meet various industrial needs.
GHM GROUP, founded in 1963 and located in Wurttemberg, Germany, is a developer and manufacturer of measurement and control technology. Its diverse range of products includes sensors, industrial electronics, portable instruments, electrical connections, and programming devices. These products are utilized across industries for monitoring, measuring, and controlling parameters such as temperature, pressure, humidity, and flow. GHM GROUP's technology is used for automation, process control, data acquisition, and quality assurance in manufacturing, environmental monitoring, HVAC, and other sectors.
OPTEX CO., LTD., established in 1979 and based in Shiga, Japan, is a manufacturer and supplier of sensors and IoT technologies. The company's product portfolio includes access control systems, environmental sensors, IoT devices, people counting systems, and intruder detection sensors and systems. These systems have applications in various industries, including the security industry, environmental monitoring, parking facilities, water quality monitoring, and others. The company is ISO 9001 Quality Management System (QMS) and ISO 14001 Environmental Management System (EMS) certified.
DKK-TOA Corporation is a manufacturer of measuring instruments since 1944 with its head office in Tokyo, Japan. The company designs instruments for measuring the pH, SS Concentration, Residual Chlorine, Dissolved Oxygen, Organic pollutants, and more having applications as laboratory, water quality, portable analyzers, and analyzers for oil refineries to name a few. These measuring items have numerous uses for Pure Water measurement, Effluent Measurement, and determining the Total Amount Regulation in the Water Supply, Sewerage, Food, and Aquacultural Industries.
Yokogawa Test & Measurement Corporation was founded in Japan in 1954. Yokogawa currently serves a wide array of industries including the aerospace, automotive, consumer electronics, semiconductor and telecommunications industries with both hardware and software solutions. Among Yokogawa’s suite of products are oscilloscopes, voltage probes, power analyzers and meters, data acquisition tools, optical test equipment, a wide variety of handled meters, calibrators, and testers; analog instruments, and manometers.
Zimmer and Peacock is a contract developer and manufacturer of electrochemical sensors and biosensor technologies founded in 2014 and headquartered in West Midlands, UK. The company is ISO 13485 certified and provides products as well as development and manufacturing services specializing in electrochemical sensors, biosensors, medical diagnostics, and in-vitro diagnostics. Its product line consists of biosensors, potentiostats, electronics, screen printed electrodes, and impedance spectrometers. The company partners with various industries and academe to develop and commercialize new sensor technologies. It serves multiple sectors, including healthcare, manufacturing, environmental protection, and more.
Shanghai BOQU Instrument Co.,Ltd (SBI) is a Chinese manufacturer of water testing and analysis instruments that was established in 2007 in Pudong, Shanghai. The company produces various water sensors and quality analyzers, such as biochemical oxygen demand (BOD), chemical oxygen demand (COD), silica, and ammonia nitrogen (NH3-N) analyzers. It also offers a range of meters, including residual chlorine, total suspended solids (TSS) and dissolved oxygen meters. SBI products are mainly used by clients in the marine, life sciences, wastewater processing, and biotechnology sectors.
Shanghai Chunye Instrument Technology Co., Ltd, established in 2018 in Shanghai, Chin, is a manufacturer of analysis instruments. Specializing in water quality analysis instruments, the company manufactures multiple categories of optimal-precision analytical equipment. The product offerings include spectrophotometers, turbidity meters, pH meters, and conductivity meters, all designed to accurately assess and monitor water quality parameters. These instruments enable scientists, environmentalists, and industries to perform precise water quality analysis, ensuring compliance with regulations and the protection of aquatic ecosystems. The products find applications in environmental monitoring, wastewater treatment, aquaculture, and municipal water supply industries. It is ISO9001:2015, ISO14001:2015, and CE certified.
Hangzhou Lohand Biological Co.,Ltd., founded in 2008 with facilities in China, is a manufacturer of laboratory instruments and equipment. The company's products include water test paper, water test kits, color comparison tubes, and industrial online meters. Lohand’s products are used for rapid testing of water quality in water supply systems, food and beverage processing, environmental detection, and water treatment projects in agriculture, sewage plants, scientific research, biotechnology, and textile industries. Hangzhou Lohand Biological Co.,Ltd. also provides custom design and production of equipment and systems to meet client requirements.
HORIBA RADIO LABORATORY was established in Japan in 1945 and has spent the last three-quarters of a century growing as an R&D company and engaged in international operations. HORIBA Scientific offers 200 years of experience developing high-performance scientific instruments and analytical solutions. The HORIBA Group of worldwide companies provides an extensive array of instruments and systems for applications ranging from automotive R&D, process and environmental monitoring, in-vitro medical diagnostics, semiconductor manufacturing, and metrology to a broad range of scientific R&D and QC measurements. Operating in Asia, Europe, and North and South America, HORIBA scientific develops solutions that go beyond just products.
Mettler Toledo was incorporated in 1945 in Toledo, Ohio, and is today headquartered in Greifensee, Switzerland. Mettler Toledo is a manufacturer of various analytical instruments for use in laboratories, industrial and manufacturing, and food retailing applications to customers globally. Mettler Toledo offers many products across product lines for uses such as product inspection, process analytics, jewelry scales, moisture analyzers, and software for laboratory weighing. Mettler Toledo also offers numerous accessories such as density kits, hands-free accessories, weighing tables, and weight accessories.
Baumer Electric AG was founded in 1952 and is headquartered in the city of Frauenfeld, Switzerland. The ISO 9001 and ISO 14001 certified company provides sensor solutions for digitalization, packaging, railway, food and beverage, and pharmaceutical industries. A sample of the company’s sensor product listings includes object detection, distance measurement, force sensors, accessories, and connectivity devices. The company offers product support for setup and installation, product functionality, and optimized product usage.
ABB E-mobility provides electric vehicle charging solutions for customers around the globe. ABB E-mobility offers DC fast chargers as well as AC chargers with focus on reliability and uptime. Since 2010, ABB E-mobility has sold over 50,000 DC fast chargers and over 1 million total AC chargers. ABB E-mobility offers home single and multi-charge units, retail, workplace, and hospitality charge units, electric vehicle fleet sales, as well as public transportation. Additionally, numerous digital solutions and software services are available.
Millipore Sigma, formerly known as Sigma-Aldrich, was created in 175 through the merger of Sigma Chemical Company and Aldrich Chemical company and today is a subsidiary of Merck. Millipore Sigma is a life science and biotechnology company serving the industry with several products and services. Some of their product categories include peptide synthesis materials, biochemicals, building blocks, catalysts, chemical biology, chemical synthesis, flavors & fragrances, formulation, lab chemicals, lab safety, APIs, and stable isotopes. Services include characterization, contract manufacturing, custom products, software, support, testing, and mRNA development & manufacturing.
Carl Roth GmbH + Co. KG, established in 1879 and headquartered in Karlsruhe, Germany, is a manufacturer, distributor, and supplier of laboratory equipment, life science products, and chemicals. Their extensive product range encompasses analytical instruments, biological safety cabinets, heating mantles, pH meters, centrifuges, thermometers, and various chemicals. Their products support and facilitate laboratory research, analysis, and experimentation across various industries such as pharmaceutical, chemical, and environmental sectors. The company is certified according to DIN EN ISO 9001:2015 and DIN EN ISO 14001:2015.
Amrit Scientific Ind. Private Limited, established in 1965 and located in New Delhi, India, is a supplier, distributor, and manufacturer of laboratory equipment, medical equipment, and blood collection tubes. The company offers a diverse range of products, including parafilm tape, stainless steel scissors, food-grade nitrile gloves, examination gloves, and vernier calipers. These products are used for sealing containers in laboratories, precise cutting, maintaining hygiene, ensuring safety in medical settings, and providing accurate measurements in industries like manufacturing and research. These products are used in scientific research, medical facilities, educational institutions, and industries such as healthcare and food handling.
Swastik Scientific Instruments Private Limited., established in 2015 and located at Thane, Maharashtra is a Manufacturer and Supplier of Scientific Instruments. The company product range offered are Spectrophotometers, P H Meter Digital, Melt Point Apparatus Automatic and more. The company offered products are made in accordance to the set industry parameters.The company products are used across the markets like building, engineering for its sturdy construction, optimum performance, fine finish and longer life span.
NK Instruments Pvt. Ltd., established in 1996 and based in Thane, India, is a manufacturer of industrial process instrumentation. The company produces various instruments used for indicating and controlling various process parameters, including pressure, differential pressure, vacuum, density, and temperature. The company offers process control instruments, including programmable indicators, sequential timers, time totalizers, logic systems, and more. These products find applications in engineering industries, gas mixing systems, medical & hospital equipment, petrochemical & fertilizer industries, food & beverage industries, and more.
S.L. Technologies, rooted in India and headquartered in New Delhi, has created a niche for itself by diversifying into multiple business sectors as a supplier, was established in 1998. The company meets customer needs by leveraging popular technologies such as LeaseWeb, Sectigo, jQuery, and Modernizr. It has enhanced the efficiency of BLDC controllers with maximizing energy-saving and quality improvement. In home and industrial controller for HVAC, it continues to meet customer’s ultimate satisfaction through constant technology development and improvement.
Labnet Oy, established in 1971 and owned by Holdlab Oy, is a Finnish-based importer, exporter, and distributor of life science reagents, consumables, and instruments used in research laboratories, pharmaceutical, biotech industrial, and hospital laboratories applications. The company’s product portfolio includes general laboratory consumables, thermo scientific products, liquid handling equipment, optical instruments & microscopes, and analytical measurement & testing devices. Their product portfolio includes products from various manufacturers including Svar Life Science, Biosan, Promega, PHC Biomedical, and MP Biomedicals.
Nanbei Instrument Limited, started in 2008 in Zhengzhou, China, is a manufacturer and supplier of chemical, laboratory, geological, agricultural and test instruments used in these industries: metallurgical mines, roads and bridges, research institutes, and agriculture. The research products the company makes includes rotary evaporators, atomic absorption spectrophotometers, seed quality analyzers, chemical analysis equipment and laboratory thermostats. It has received the SO 9001:2015 quality management system, CE of Trademark, CE of EU Trademark, Medical Type-2 Reports and EU of CE certifications.
NINGBO SINOTESTER BIOLOGICAL CO., LTD, established in 2008 and based in Zhejiang, China, is a manufacturer and exporter of laboratory instruments and equipment. The company has an R & D team and produces products such as Refractometer, ORP meter, Turbidity meter, Colour comparison tubes and conductivity meters. The company holds CE, ISO 9001, and FSC certifications and exports customized products to 56 countries and different industries such as health & medicine, industrial equipment, agriculture & food and manufacturing and processing machinery.
JUMO GmbH was established in 1949 in Fulda, Germany. The company is a system provider for individual sensor and automation solutions, creating components for measuring as well as products for registration, monitoring, control, and automation. Through these, the company serves a wide range of industries such as food and beverage, railway, shipbuilding, and water treatment with both components and complete solutions. The company’s product segments include Temperature, Pressure, Flow, Liquid Analysis, and Level. The company offers many services to customers including calibration, field service, repair service, and maintenance contracts.
PASCO Scientific, headquartered in the United States, is a supplier company of educational science solutions since 1964. The company's comprehensive product range includes science sensors, data loggers, and lab equipment, catering to different educational levels from K-12 to higher education. Hands-on science tools and datalogging solutions connect the students directly to science and STEM concepts with classroom technology such as sensors, interfaces, and data collection and analysis software. They also design and manufacture lab equipment for physics and engineering and offer curriculum solutions.
Xylem Analytics, based in the United States, is a global water technology supplier which offers analytical instrumentation, specializing in measurement technology and water solutions. The company's comprehensive product portfolio including titrators, viscosity measurement systems, glass capillary viscometers, as well as measuring instruments for measuring pH, dissolved oxygen (DO) and conductivity. They also provide instrumentation for field and environmental monitoring in surface water, stormwater, drinking water, oceans, and coastal waters. Their solutions are designed to meet the demands for precise, simple and low-maintenance quantitative and qualitative measurement analytics.
5 products are listed.