Overview: SMA-DTU-A2 digital collection and transmission device equipment in accordance with industry-standard design, along with data sampling, alarm control output, real-time online data remote transmission capabilities. Support GPRS / GSM network, with RS32, RS485 port, and real-time data can be configured for remote call parameters measured by the local communication port or GPRS / GSM networks. Supports standard Modbus, HJ / T 212 protocol. Available with moisture meter, online analytical instruments, such as docking, monitoring data collection, management and transmitted to the control center. Main applications: SMA-DTU-A2 digital collection and transmission device is mainly applied aquaculture plants, sewage plants, water plants, radiation monitoring, environmental protection departments and other industries. Which for the environmental protection sector, can effectively monitor the pollution emissions area businesses and related businesses sewage, waste gas and noise emissions as well as the operation of environmental protection facilities, such as real-time monitoring. Features: 1,8 Road 12 analog signal acquisition; 2,1-way RS485 interface, 1 232, the standard Modbus protocol; 3, support Ethernet, Modbus-TCP protocol; 4, with remote wireless communication (GPRS) function, while supporting two service centers; 5,4 dry contact output, shock capacity greater than 5A / 250VAC; 6,16-way switch input (active signal); 7, the power supply 12-36VDC or 220VAC, optional backup battery; 8, with data reclaim function; 9, the alarm function: the analog limit alarm, switch status change alarm; 10, the interface displays real-time data, configuration parameters, historical data query capabilities; 11, in line with "HJ / T212 -2005 pollution-line automatic monitoring (monitoring) system data transmission standards "; 12, support for serial data collection, standard MODBUS_RTU can collect meter data protocols; 13, with can interface unit can achieve regional interconnection and extensions; 14, the whole machine using industrial-grade design standards, IP65 protection, high performance, high reliability, easy operation and setup, user-friendly; 15, achieved to receive various types of monitoring data, display, statistics, automatic comprehensive analysis, storage, applications, publishing; 16, the choice of the development of advanced technologies, applications simple, friendly interface, suitable for all levels of personnel to operate; 17, with advanced design concepts, according to the environmental management of the development and requirements, can be expanded at any time, and should be compatible with existing applications.