Features: Measure and Control Noise Level with Precisions: This TA652B Sound Level Meter is designed to accurately measure noise level in various environments, allowing users to assess and evaluate the level of tranquility. Advanced Digital Technology for Reliable Results: Equipped with a high precisions sensor, this compact and portable device provides reliable test results, making it convenient for users to control and adjust noise level. Suitable for Home Users, Educational Institutions, and Noise Workers,Whether you're a concerned homeowner, an educational institution evaluating classroom noise level, or a noise worker like a musician or sound engineer, this sound level meter caters to your specific need Versatile Usage in Various Settings: From measuring indoor and outdoor noise level in homes, such as bedrooms, living rooms, and gardens, to assessing noise level in schools, libraries, music recording studios, and theaters, this device ensures a peaceful and conducive environment. Clear Display and Easy Operation: With its backlit LCDscreen, this sound level meter offer clear visibility of test results under different lighting conditions. Its user friendly interfaces allows for quick responses and high precisions testing, enhancing the overall user experience. Specifications: Material: ABS+metal Length: approx 229mm/9inch Width: approx 70mm/2.76inch Ranges: 30-130dB Resolution: 0.1dB Frequency response: 31.5Hz-8kHz Auto-power-off: 15 minutes Power supply: 3x1.5VAA(Not included) Package Includes: 1xDigital Sound Level Meter note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item.