Rejeee was born in 2017 and is a high-tech enterprise specializing in the research and development, production, and sales of intelligent IoT devices. After years of development, the company has formed a product matrix and production supply system for "multi category intelligent sensor terminals, wireless communication gateways, and intelligent device management cloud platforms", providing customers with one-stop low-power IoT solutions, and providing private network deployment and software platform customization development services tailored to customer needs. At present, large-scale commercial applications have been completed in scenarios such as wireless temperature measurement in bus ducts, smart factories, smart firefighting, smart parks, and smart electricity.