A Sound Level Meter is a device used to measure the intensity of sound in decibels (dB). It captures sound waves through a microphone and converts them into electrical signals, which are then processed to provide a reading. These meters are commonly used in various fields, including environmental monitoring, construction, and music production, to ensure sound levels are within acceptable limits. Sound level meters can vary in complexity, from simple handheld models to advanced devices with data logging capabilities. They often feature different weighting scales, such as A-weighting, which adjusts the measurement to reflect human hearing sensitivity. This makes them essential tools for assessing noise pollution and ensuring compliance with regulations.