Hunan Firstrate Sensor Co., Ltd. is located in Changsha, cover an area of 62,000 ㎡. Quality control goes on according to ISO9001 quality system strictly. At present, our company has declared 6 national invention patents, 20 utility-model patents. Our company get the certificates of CMC, CE, CNEX, Flame-proof certification and ROHS.Our products include different series such as pressure sensor, temperature sensor, wind speed & direction sensor, and intelligent control instrument which are widely used in machinery, electricity, metallurgy, petrochemistry, automobile, compression engine, pharmacy and instrument production industries.