The integrated explosion-proof vibration transmitter (ZT-YBF40) of Jiangyin Zhongtai Technology Co., Ltd. has passed the evaluation and certification of the National Explosion proof Electrical Product Quality Supervision and Inspection Station, and obtained the explosion-proof certificate issued by the station on July 26, 2010. The explosion-proof mark is ExnA IIT6, and the certificate number is CNEx10.1582, laying the foundation for the product to successfully obtain coal safety certification.