Industrial M2M Wireless 4g mqtt Multi io port remote controller

S271 is industrial 4G RTU that supports SMS and MQTT protocol. It is compatible with Huawei cloud, Alibaba cloud and other clould platform including customized cloud platform. It has four DI, four Relay output, four AI and one temperature and humidity acquisition interface. It has built-in programmable logic control and timer function. It is widely used in various remote industrial data acquisition and control systems.