KY037 Sound Sensor Microphone Decibel Measurement Module — pack of 10 What this module does and why it matters Detects and measures sound levels so you can monitor, analyze, or react to environmental noise. Accurate decibel measurement helps you assess sound intensity for testing, safety, and control applications. A pack of 10 supplies multiple sensors for larger builds, prototypes, classrooms, or distributed monitoring without repeated ordering. Key features and benefits 4-pin design for straightforward wiring and fast integration into projects, reducing setup time and errors. Built-in microphone on a compact PCB for space-efficient installation in enclosures or prototypes. Consistent performance across units makes it easy to deploy multiple sensors and compare readings reliably. Ideal for hobbyists and electronics developers who need a ready-to-use sound detection module for experimentation and small deployments. Compatibility and usage Designed for easy integration with common development boards and microcontrollers via the standard 4-pin connector. Compact form factor fits typical breadboards and enclosures, supporting rapid prototyping and iterative design. Durable PCB construction suitable for repeated handling in workshops and labs. Practical applications Classroom or workspace noise monitoring to maintain appropriate sound levels and document changes over time. Sound-activated projects such as triggering lights, alarms, or recordings when a threshold is reached. Product development and testing where multiple synchronized sensors are needed to compare sound levels across locations. What you get Ten KY037 Sound Sensor Microphone Decibel Measurement Modules ready for immediate use in multi-unit projects, prototypes, or teaching kits.