Hunan Gri Instrument Co., Ltd. is a high-tech manufacturer and trading company established in 2009 and headquartered in Changsha, China. Operating from the Environmental Science and Technology Industrial Park, the company specializes in the design, development, and production of advanced sensors and instrumentation. As an ISO 9001 certified enterprise, they offer a comprehensive range of gas detection solutions, including portable, fixed, and wall-mounted gas detectors, as well as NDIR gas sensors and online gas analyzers. Their product portfolio extends to environmental monitoring systems, water quality testing equipment, pH value detectors, pressure transmitters, and ultrasonic flow meters.
With a focus on industrial automation and safety, the company provides OEM services and maintains a strong R&D capability for developing embedded systems and process control software. Their instrumentation is widely utilized across diverse sectors such as petrochemicals, telecommunications, electric power, medical, HVAC, and environmental protection. Hunan Gri Instrument Co., Ltd. manages multiple production lines to deliver high-quality monitoring and control modules, including specialized detectors for chlorine dioxide, methane, sulfur hexafluoride, and nitrogen dioxide. The company holds CE and PSE certifications, reflecting their commitment to international quality standards and their ability to serve global markets with reliable data acquisition and analytical instruments.
OEM manufacturerOffers OEM services for customized brand manufacturing.
Industry association memberMember of ISO 9001 association.
High-tech enterpriseRecognized as a high-tech or innovative enterprise.
Low MOQOffers low minimum order quantity options.
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Portable Medidor De Ozono WASP-XM-E-O3 O3 Pump-priming High Quality Gas Monitor Detector Gas Ozone Meter
4.8·6 reviews
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GRI Full Range Scope Industry Area Fixed CH4 Gas Transmitter Module Gas Leakage Detector for Biogas De Gas Methane Monitor
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O2 Gas Analyzer Oxygen Indoor Air Quality Monitor Room Meter
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GRI C2H4 Gas Analyzer Fruit Ripen Stock Ethylene Fixed Smart Gas Sensor Transmitter 4-20 MA Meter Leakage Detector
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Intelligent Fixed O3 Gas Detector with Display Ozone De Gas Sensor Analyzer
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Indoor Wall-mounted Integrated O3 Toxic Gas Detector De Gas Analyzer air Quality Monitor System
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0-10%VOL NDIR CO2 Portable Gas Detector Carbon Dioxide Sensor Gas Analyzer
4.8·6 reviews
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Ozone Gas Analyzer O3 Portable Gas Leakage Detector Measurement Tools Meter Equipment
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IAQ-2-O2 Indoor Air Quality Monitor Oxygen Gas Analyzer Human Breath protection
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GRI Room Use O2 Wall Mounted Gas Analyzer Oxygen Indoor Air Quality Monitor
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0-5PPM Portable CLO2 Chlorine Dioxide Gas Monitor
4.8·6 reviews
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0-1PPM Portable SO2 Sulfur Dioxide Gas Sensor
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Hnjry Instrument and Eqiupment Co.,Ltd. is a manufacturer and trading company based in Changsha, China, established in 2009 with 11 to 50 employees. The company specializes in manufacturing a diverse range of analytical instruments and related equipment. Their product portfolio includes graphite digestion systems, graphite platen heaters, graphite digestion ovens, microwave synthesis systems, accelerated solvent extraction systems, and rotary agitators. They also produce high-purity gases, medical gases, industrial gases, gas generators, gas cylinders, and radiation protection products. Hnjry Instrument and Eqiupment Co.,Ltd. is a key partner of the China Institute for Radiation Protection products and South Engineering Market, emphasizing sincerity, innovation, and customer satisfaction in their operations.
Hunan Herexi Instrument & Equipment Co., Ltd. is a high-tech manufacturer and trading company based in Changsha, China, specializing in the research, development, manufacturing, and marketing of laboratory instruments. Established in 2018, the company has over 40 years of experience in the field, with senior management and technicians contributing to national development planning and standards for scientific instruments. With 5 to 10 employees, Hunan Herexi offers a comprehensive range of laboratory centrifuges, including high-speed refrigerated centrifuges, extra-large refrigerated centrifuges, low-speed refrigerated centrifuges, normal temperature centrifuges, crude oil moisture test centrifuges, and vacuum centrifuge enrichment systems. They also produce intelligent electronic balances. The company provides OEM, ODM, and contract manufacturing services, operating with multiple production lines and an annual output value of US$2.5 Million - US$5 Million. Hunan Herexi is committed to quality, holding ISO 9001, ISO 13485, and CE certifications. Their products are widely applied in scientific research, military, medical, pharmaceutical, and environmental protection sectors, with significant export activities to North America, South America, Eastern Europe, Southeast Asia, and the Mid East.
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