S275 is a 4G RTU with IIoT data acquisition remote monitoring and control SMS alarm functions it is widely used in remote data acquisition and monitoring of various industries such as smart grid smart transportation industrial automation smart building firefighting public safety environmental protection meteorology digital medical agriculture forestry water coal mining petrochemical and other fields 8 digital input 4 relay output 6 analog input and 1 temperaturehumidity input 1 RS485 serial port Modbus RTU MasterSlave can expand multiple Modbus Slave devices Max 320 data points Embedded TCPIP stack supporting Modbus RTU Modbus TCP and transparent transmission Builtin powerful telephone and SMS alarm function regular reporting abnormal upper and lower limit alarm Local logic control of the device linking relay outputs based on monitoring of digital input and analog value thresholds Antidropout mechanism to ensure the device always online and it comes with data retransmission function Support remote configuration remote management and remote restart by SMS Builtin powerful timer function support timed automatic reporting timed daily SMS timed online timed offline timed restart timed execution relay output etc