BQA100H silicon pressure transmitter is designed for use in applications which deal with corrosive pressure media and require high accuracy. The pressure diaphragm of transmitter is made from silicon material, while its wetted parts are made from 316L stainless steel which possesses a higher degree of resistance against chemical corrosion. The output signals of BQA100H pressure transmitters are configured to meet the need of different controllers used in industrial automation processes, including 4~20mA, 0~5V. With BQA100H one can obtain 0.25 % fso accuracy in measurement with long-term stability. The zero thermal drift is less than 0.04 %fso/°C, while the sensitivity thermal drift is 0.02 %fso/°C over the whole operating temperature range.