Hunan Gri Instrument Co., Ltd. Founded on Environmental Science and Technology Industrial Park in Hunan Province in 2009, our company is a high-tech enterprise based on advanced sensors and instrumentation R&D and manufacture. The company holds registered capital of 5.01 million RMB and has the independent import and export rights.

Gri Instrument mainly produce portable gas leak detectors, fixed gas detectors, wall-mounted gas detectors, gas alarm host, on-line gas analyzers, portable gas analyzers for Toxic gas、Oxygen gas、VOC and Combustible gas, various temperature and humidity transmitters and controllers, pressure transmitters, PH value detectors and water quality testing equipments, quality flow meters, ultrasonic flow transmitters and a variety of industrial control modules and control systems.

Our products widely used in the petroleum chemical industry, metallurgy, mining, fire, gas, environmental protection, electric power, communication, papermaking, dyeing, food reserves, city water supply, sewage treatment, food, brewing, research, education, national defense ,security testing, HVAC, Personal protective and other hazardous gas monitoring.

The company follows high-quality, efficient and innovative approaches provide our new and old customers with excellent products and good service system.