This is an instrument for gas detection on the power plant site, which subverts the traditional instrument design. It is designed from the aspects of ergonomics and interactive experience. Through the connection of the Internet of Things, information can be fed back to the background center at any time. Modular design, considering the combination of various gas detection, can be combined according to the field environment. On-site personnel can connect through mobile phones without bending over to collect data. The framework package is used in the scheme, one is to play a protective role, and the other is to grab it everywhere, which is more convenient and a hidden design.