Noise sensors are increasingly used in today's society, and their importance is not only reflected in the field of scientific research but also plays a key role in urban planning, environmental protection public health, and many other aspects. A noise sensor is a type of sensor used to measure noise levels in the environment. It usually consists of one or more acoustic sensors that can detect and measure noise at different frequencies. Here are some of ATO online shop's explorations of why we need noise sensors, designed to shed light on their importance in modern society.