The noise monitor is a professional device for real - time monitoring of environmental noise levels. It is equipped with high - precision acoustic sensors that can accurately capture noise signals of different frequencies and intensities. The outer shell is made of sturdy and durable materials with good water - proof, dust - proof, and anti - interference capabilities, enabling stable operation in various harsh environments. Its advantage lies in its high measurement accuracy and fast response speed. It can display the noise decibel value in real time and has data storage and transmission functions, facilitating users' subsequent analysis of noise data. It is widely used in places such as urban environmental monitoring, industrial production, construction sites, and traffic arteries. In urban environmental monitoring, it evaluates the urban noise pollution situation; in industrial production, it monitors the noise generated by equipment operation; at construction sites, it controls the impact of construction noise on the surrounding environment; on traffic arteries, it monitors the traffic noise level.