Key benefits Accurate, easytouse sound sensing: 50dB sensitivity captures environmental noise levels reliably for measurement and control tasks. Fast integration for prototyping: plugandplay sound measurement module with analog output and 3/4pin interface compatibility reduces development time and wiring complexity. Compact and efficient for embedded projects: spacesaving PCB design and DC4.5V–5.5V power make it suitable for small systems and batterypowered devices. What this module does for you Measures ambient sound and converts it to an analog signal you can read directly with ADCs or audio inputs. Works with a wide range of control boards and sensor hubs via 3pin or 4pin connectors for seamless hardware compatibility. Simplifies prototypetoproduct workflows by delivering consistent, professionallevel signal quality without complex setup. Key features Sensitivity: 50dB sensitivity for reliable environmental noise detection. Outputs: analog voltage output for direct measurement and integration. Interfaces: compatible with 3pin and 4pin connector setups. Power: DC 4.5V–5.5V operation for compatibility with common embedded power rails. Form factor: compact PCB design optimized for spaceconstrained systems. Performance and reliability Provides stable analog sound signals suitable for signal processing, logging, and control applications. Designed for embedded use where board space and power budgets are limited. Typical applications Industrial ambient monitoring: track noise levels on factory floors and trigger maintenance alerts or logging when thresholds are exceeded. Smart home voice activation: integrate as a trigger sensor for hands control, wakeword systems, or noiseaware automation. Security and alarm systems: create noisetriggered alerts that detect unusual sounds or breaches and initiate notifications. What you get A plugandplay microphone decibel sensing module delivering analog output, 3/4pin interface compatibility, 50dB sensitivity, compact PCB form, and DC4.5V–5.5V power requirements—ready to integrate into prototyping and embedded projects.