The Internet of Things (also known as sensor network) was proposed at the end of the 20th century and is now mature and stable. As a sensor manufacturer, Ould also keeps up with the market, continuously researches and innovates, and successfully develops a series of wireless products such as PT-W10 / PT-W20 / PT-W11. Ould always guarantees high quality and high stability, which can ensure you use in various environments.