Digital noise tester is a device used for noise detection and testing in public places such as living, production, construction sites, and squares. Noise pollution is a major environmental concern. Higher decibel noise can damage the human eardrums, leading to deafness, insomnia, dizziness, and headaches. The digital noise tester provides the decibel level of the noise so that relevant measures can be taken to control and reduce the noise. The measurement unit of sound is decibel. Key benefits Provides objective decibel readings in real world environments to support informed decisions. Helps identify noise levels and track the effectiveness of noise control measures. Supports health and safety by documenting noise exposure levels for actionable consequences. Core attributes Function: noise detection and testing in public spaces. Measurement unit: decibel. Applicable environments: living, production, construction sites, and squares. Performance: outputs decibel readings to guide noise reduction actions. Use scenarios In residential living areas to monitor ambient noise levels and determine if they exceed acceptable levels. On production facilities or construction sites to measure equipment noise and plan mitigation. In public squares or outdoor spaces during events to assess crowd noise and inform noise management actions.