2006  The year Zhongke has founded.2007  The year TC4850 has launched. TC4850 is also called the 3rd generation of seismic vibration logger, which authenticated by Science and Technology Department of Sichuan Province the honor of” Domestic Leading Scientific and technological innovation products” on July，20082008 The year Zhongke launched the “three vectors in one” sensor, who is the first one domestically. The great advantage of the sensor lies in its’ frequency response range from 1Hz to 300Hz.2009  The year zhongke won the “Scientific and technological innovation” Prize issued by Chengdu Science and Technology Bureau2010 The year Zhongke won the “Scienc & Technology” Prize issued by China Engineering Blasting Association2011  The year Zhongke launched network logger,4850N, which enable people not on testing site can get the details of the whole event.2016  The year a highly innovated product ,6850, has been launched. It integrates sensor and logger into one, which reduce the volume of the set and makes the test more simple. 6850 can also be used for accelerated speed testing.2017  The year Zhongke launched APP, which enable people uses the mobile to control 4850N and 6850.2019 The year Zhongke launched General Platform Software, which is more functional than the old standalone version.2020 The year an new generation of 4850, 4850X, has launched. One logger with 2 three-axial sensors is its high-lighted commendation. 4850X can help the users save cost on testing spot distribution.Zhongke (Chengdu) Instruments Co., Ltd.