ph calibration buffer solution90+ factories verified

In 1940, "Rex" gave birth to China's first pH meter and first glass electrode, marking the birth of Chinese analytical instruments. As the first professional manufacturer of analytical instruments in China, "Rex" has been focusing on the innovation and accumulation of electrochemical analysis instruments with more than half a century. "Rex" has unique advantages and status. The product categories are constantly expanding and the technical level is increase. "Rex" has more than 100 kinds of electrochemical analysis instruments, sensors and application solutions, including all kinds of instruments, such as laboratory, online and on-site testing, taking the lead of the domestic electrochemical analytical instrument industry and catching up with the international advanced level.

Wollen has many years of experience in the field of laboratory instrument production and sales, and we has been devoted to providing the most suitable equipments and solutions.

Shanghai Kepon Biotech is a specialized global supplier of high-quality biochemical reagents, reference standards, lab consumables, and lithium battery materials. We focus on providing reliable products and one-stop solutions for life science research, industrial testing, and battery manufacturing worldwide.

As a professional manufacturer, Scitek Global is certified by ISO 9001, ISO 13485, ISO 45001 and ISO 14001. Our main products are biological safety cabinet, Laminar Flow Cabinet, Fume Hood, Autoclave, Freezer and Refrigerator, Incubator and Drying Oven, Water Purifier, Centrifuge, Glassware Washer, Microscope etc, almost all our products are certified by ETL, CE and FDA.

Shanghai Boqu Instrument Co., Ltd was established in 2007, and located in Kangqiao Town Pudong New Area Shanghai. It is the professional manufacturer of electrochemical instrumentation and electrode combine with the R&D, production and sales. The main products include pH, ORP, conductivity, ion concentration, dissolved oxygen, turbidity, alkali acid concentration and electrode etc.

Zhengzhou Labone Instrument Co., Ltd (Labone) is a leading manufacturer and exporter of high-quality laboratory and chemical equipment, headquartered in Zhengzhou City, Henan Province, China. With over two decades of industry expertise, Labone has established itself as one of the most comprehensive and reliable suppliers in the global market. Our extensive product portfolio includes state-of-the-art reaction equipment, precision distillation systems, advanced drying solutions, cutting-edge purification technologies, robust chemical machinery, and a wide range of laboratory equipment and analytical instruments.

NANBEI Instrument limited is affiliated to Nanbei International Group Limited. It has been exported to more than 120 countries around the world for 20 years, and it is one of the largest and the most comprehensive instrument and equipment manufacturers in China. It integrates research, development, production and sales as one of the independent legal personality persified technology group. The headquarter is in Zhengzhou (International Air Port Area), China. And it also has the office in Beijing, Shanghai, Shenzhen and Hong Kong of China. NANBEI had obtained ISO9001: 2015 quality management system certification, SGS certification, and its products had passed EU CE certification and RoHS certification.

Shanghai Yoke Instrument Co., Ltd. is a company that is dedicated in the R&D, manufacturing, sales and services of analytical instruments. It has been quickly developing since the establishment in 2007 with RMB20 million registered capital. With the headquarter and the factory in Shanghai, now Yoke Instrument has two R&D centers, three wholly owned subsidiaries, two investment holding companies, and multiple offices all over the country, respectively engaged in domestic trade, international trade, technology trade, logistics and after-sales services.

Henan Aoda Instrument Equipment Co., Ltd is a high-tech enterprise integrating R&D, production, sales, import and export. We have a group of excellent management and technical talents who pursue excellence, progress and innovation. We are committed to creating a better life for people. For many years, we have been serving global customers in the fields of agricultural/food/feed/soil and water quality laboratories~

BOQU Instrument focuses on technological innovation in water quality analyzers and water quality sensors since founded at 2007. Now staff is over 100 people and with an annual growth rate of 35%. We have own R & D center, many senior engineers has over 10 years R& D experience...Now BOQU has got more than 50 technical certificates for controller software and over 20 technical patents, therefore we won the National High-tech Enterprise Certificate in 2010. At present, the annual quantity of water quality sensors and meters is over 100, 000PCS, it let BOQU instrument become the biggest factory in water quality analyzers in Shanghai China.

TOP Cloud-agri was found on 2008 with registered capital amount US$ 9.84 million. It located at Hangzhou, Zhejiang Province of China. It is a national high-tech enterprise which is specialized in design, development, manufacture, and sales of agriculture testing instrument, laboratory equipment, smart agriculture solutions for more than 16 years. The core products of the company are testing instrument in seed shape measurement, seed breeding, sampling, cleaning, storage, seed vigor and health research, plant physiology, soil physical properties analysis, crops quality analysis, food safety detection, agriculture produce quality testing, plant protection, pest forecast and monitoring, weather monitoring, water quality detection, smart agriculture solutions, and other general laboratory devices. No requirement about MOQ, OEM is accepted, and it provides 18months warranty of products.

Xi'an ERUN Environmental Protection Technology Group Co., Ltd (hereinafter referred to as "ERUN") was founded in 2014, with a registered capital of 51.8 million yuan, located in the high-tech zone of Xi'an City, China. With 4 subsidiaries, 5 branches and 2 R&D and production bases, the company is a national high-tech enterprise specializing in the R&D, production and sales of high-end instruments and equipment.

Based in Yantai, Shandong, our company is a leading enterprise specializing in manufacturing instruments and equipment parts. Focusing on these two core businesses, we have laid a solid foundation through business integration. Our technical team integrates process experts in equipment parts and R&D backbones of manufacturing instruments, achieving complementary advantages.

Shanghai Haiker Environmental Protection Equipment Co., Ltd. is a high-tech enterprise integrating R&D, production, sales and service. The company has a professional technology research and development team and a laboratory for standardised applications, and the core technology has independent intellectual property rights. It has established solid partnership with tens of thousands of enterprises and institutions.

SKZ Industrial Co., Limited and SKZ International Co., Limited are the members of SKZ group, We are specialized in supply Laboratory Instrument, Scientific instrument, Analytical Instrument, Thermal Analysis, Moisture meter, Gas detector and testing instruments for pulps, paper, cardboards, plastic, rubber and textile.

Cold Valley Intelligent Technology: Leading Industrial IoT & Automation Solutions

Since its establishment, our company has always adhered to the business principles of "quality first, customer first, and credibility as the foundation", and has been deeply engaged in the field of environmental monitoring for many years, accumulating rich project implementation experience. Our business covers seven core scenarios: Pollution source outlet monitoring, national standard water stations, outdoor small water stations, ecological agriculture, aquaculture, secondary water supply, and groundwater monitoring. We have successfully implemented key projects in various fields across the country, including domestic sewage, chemical industry, medical care, smart water management, and black and odorous water body treatment, and have won market recognition with high-quality project results and excellent service reputation.  

Huanghua Faithful Instrument Co., Ltd, founded in 90s and located in coastal city-HuangHua, our factory covered 40, 000 square meters, with more than 200 employees. Huanghua Faithful Instrument Co., Ltd is a specialized supplier of scientific and laboratory instruments. Faithful has established enviable reputation for its ability to design and manufacture high quality products, now we are dedicated to developing and manufacturing instruments as well as distributing world-renowned products and offering unmatched scientific performance and proven value.

MADSUR is a modern production-oriented company specializing in the research, development, production, and sales of intelligent instruments, water quality analyzer instruments, COD analyzers, ammonia nitrogen analyzers, online suspended solids monitors, total phosphorus analyzer, online water hardness monitors, online dissolution monitors, online residual chlorine monitors, total nitrogen analyzer, multi parameter water quality monitors, online turbidity monitors, and online monitoring equipment. With a comprehensive and scientific quality management system, we consistently deliver high-quality products and technical support, along with reliable after-sales service. Our company primarily focuses on technology development, technical consulting, technical services, technology transfer, and the production and sales of optical equipment, water quality testing equipment, as well as the fields of intelligent technology, automation technology, optical technology, and detection technology. Engaged in the import of goods and technology. We have a professional product and sales technology team, with businesses covering multiple countries and building a global business and service network.

Hubei New desheng Material Technology Co., Ltd., formerly known as Wuhan Desheng Biochemical Technology Co., Ltd., is a professional research and development, production, and sales institution for biochemical reagents. The company was established in 2005 and has been in existence for 18 years.

Zetron has 20 years of combined experience developing, manufacturing and marketing a complete line of gas detection equipment to protect people from hazardous conditions in industrial, research and commercial applications. Today, Zetron is committed to providing air detection equipment, services and solutions to keep your people and plant safe.

Guangzhou Yueshen Medical Equipment Co., Ltd. (hereinafter Referred To As Yuesen Med), Compounded With The R&D And Sale Of Medical Device, Is A Leading Supplier Of Medical Equipment, Especially In The Field Of Medical X-ray Machine.

Henan Bingsheng Industrial Co., Ltd. is a high-tech enterprise engaged in the research and development, production, sales, and service of high-end intelligent sensors and automation equipment, located in the High tech Zone of Zhengzhou City. The company focuses on independent research and manufacturing of online monitoring equipment for environmental protection, water industry, agriculture and other related industries. The products include online water quality sensors such as pH, ORP, conductivity, dissolved oxygen, turbidity, residual chlorine, chlorophyll, blue-green algae, and online soil moisture sensors such as oxygen content, temperature and humidity, and full parameters (temperature+humidity+conductivity+pH+nitrogen, phosphorus, and potassium). The company has cutting-edge technology and independently developed and produced a water quality multi parameter online monitoring instrument, which has advantages such as high accuracy and long service life. It can be customized for design and production according to different customer application scenarios. Leading excellence with wisdom and improving development with creativity, Henan Bingsheng Business Co., Ltd. Always adheres to the development concept of "application first, customer first", and strives to promote the rapid development of water conservancy and agricultural IoT sensing technology!

Changsha SUNY Electronic Technology Limited is a leading designer & manufacturer for overall solutions of electronic products rapid prototyping, which integrated the business like research & development, production & manufacturing, marketing, engineering, managing and training services.

Xian Yunyi Instrument Co., Ltd. is a professional manufacturer that engaged in the fields of pressure measurement instrument, the chief engineer, Mr Tian has more than 30 years experience on this area, and he is one of the engineers who introduced the Rosemount technology.

Company History:

WANT Balance Instrument Co., Ltd., has mostly engaged in theresearch, manufactureand sales of electronic balances for more than fifteen years.

KUNSHAN AST Optoelectronics Co., Ltd designs, develops and manufactures high quality and affordable electronic device, especially in the field of NDIR gas measurement, our team has 15 years of development experience.

Shanghai Chunye Instrument Technology Co., Ltd. is a leading manufacturer, supplier, and exporter of water analysis instruments.

Biobase Biozone Company Limited is established in 2017, BIOBASE is a professional manufacturer whose business covers laboratory equipment, medical device, engineering project and cosmetics. Founded in 1999, BIOBASE is a professional manufacturer whose business covers laboratory equipment, medical device, engineering project and cosmetics. With more than 3, 000 employees, 25+ factories, BIOBASE has established overseas branches in USA,  UAE,  Singapore,  Kazakhstan,  India and other countries. BIOBASE has long-term business partners in 190+ countries. BIOBASE can provide one-stop solutions for laboratory and medical fields. Main products include biological safety cabinet,  laminar flow cabinet,  fume hood, refrigerator & freezer, autoclave, oven,  incubator, centrifuge,  wheel chair, hospital bed,  IVD instrument,  clean room project, etc. BIOBASE would like to establish win-win business cooperation with distributors all over the world. Biobase Biozone will provide you quality products and offer training service on the installation and maintenance of all of the products. Especially our engineers are experienced on hands-on design, testing and troubleshooting. Biobase Meihua will continue to explore and exploit bravely against the torrent of difficulties, and have the confidence to build a heathier and brighter future for global customers.