The SGC AS 01 Ambient Noise Sensing Microphone is a specialized component designed to work seamlessly with the SGC 04 4-Channel Smart Gain Control. This dedicated microphone serves as the input source for each channel, providing precise ambient noise readings to the SGC 04 unit. Engineered for accuracy and reliability, the SGC AS 01 plays a crucial role in the dynamic adjustment of announcement volumes, ensuring optimal audibility in environments with varying ambient noise levels. Its integration into the SGC system enhances the overall performance and functionality, contributing to the system's ability to intelligently adapt to changing acoustic conditions.