Features: Accurate Noise Measurement: This digital sound meter employs advanced transducer technology with a measuring scope of 30 130dBA and 0.1dB sensitivity, providing consistent readings for homes, offices, and learning areas. Compact & Robust Build: The noise measurement device is constructed from lightweight plastic with dimensions (4.9x15.5x2.5cm) for easy carrying. Clear LCD Display: The backlit screen shows current measurements refreshing every half second. Multi Purpose Applications: Works well in various locations including construction areas and classrooms, helping noise aware people preserve peaceful spaces. Energy Efficient Design: Includes auto shut off after 5 minutes and optimized battery consumption, allowing prolonged usage for continuous sound monitoring in residential or work environments. Specifications: Substance: constructed of plastic, lightweight and permanent, suitable for daily household use. Process: accuracy manufacturing process is adopted to secure the accuracy and stability of measurement. Technical parameters: High-precisions transducer, supports wide-band noise detection, fast response time, and provides real-time data. Measuring extent: 30-130dBA; backlight mode can be turned on for night lighting; automatic shutdown mode in 5 minutes; sampling frequency: 2 times/second; resolution: 0.1dB; Size: Specific size: 4.9x15.5x2.5cm; Practicality: Applicable to various scenarios such as homes, offices, schools Package Includes: Digital noise meter host×1 note: Before using the accessory, please check if it is compatible. Pay attention to the storage methods.