QSY400 is the fourth generation smart and multi-functional data acquisition system which is specially developed for geological monitoring in wild environment. QSY400 adopts industrial-grade ARM controller and embedded Linux system , adopts 4G complete netcom communication module for data transmission, supports all the mainstream communication network ,such as GSM,GPRS,CDMA,GSM-R. QSY400 adopts CAN bus network and zigbee for the data transmission between the master and the slave , supports the zigbee Wake -on-LAN function and data download function. QSY400 has some special functions ,such as , alarm function for abnormal data use ,anti-theft function, and lightening protection function. QSY400 also has a highlight industrial wide-temperature OLED display module which is durable and suitable for various extreme environments .