Unboxing the portable gas detector on site. It is equipped with a sturdy and durable protective case. The instrument is easy to operate, and the design of the buttons and screen is practical. In scenarios such as chemical engineering and confined space operations, it can quickly complete startup and calibration, detect gas concentration in real time, and promptly alarm when abnormalities occur, providing reliable support for on-site safety monitoring. It is a practical little helper for industrial safety.