The Lora Gateway S281 is the latest Lora technology for industrial internet of things solutions. It supports upto 99 wireless temperature humidity modules, and 99 wireless serial port modules with a monitoring radius of upto 2500m.it is widely used in agricultural greenhouse temperature and humidity collection and monitoring, chemical plant temperature and humidity collection and monitoring, electroplating plant temperature and humidity collection and monitoring, hospital sites and fruit and vegetable storage warehouses and other places temperature and humidity collection and monitoring. Supports SMS,GPRS,3G, 4G Lte Cellular Networks.Compatible Modbus TCP and MQTT IoT Protocols and can intergrate to the KPIIOT IoT Cloud Platform and OPC, SCADA and MES systems to build an industiral IoT Solution. Supports 10 user numbers for receiving device daily reports, dropped calls, serial port data overrun, and specific SMS alarm messages triggered abnormally; Built-in powerful timer function, support timing automatic reporting, timing SMS daily report, timing online, timing restart and other functions; Modbus TCP protocol and Modbus RTU protocol are compatible with transparent transmission; Ethernet comes with a transformer isolator, 2KV electromagnetic isolation, and shell isolation protection; Adopt time division multiplexing, multi-channel mounting, less interference, more mounting nodes, can support up to 99 temperature and humidity collection points It can monitor the terminal battery level in real time to ensure that the device data does not drop.