đŠăWide Applicationăâ This sound meter designed to meet the measurement requirement of sound quality control in various environment. Ideal for testing music recording, neighbor noise complaints, industrial settings, office settings, speech therapy & more. the Decibel sound meter is an instrument used to measure the ambient sound level, such as sound level around factories, workshops, schools, residential, road, audio etc. đŠăHigh Accuracyăâ Measurement range: 30-130dBA, accuracy: ±1.5dB, resolution: 0.1dB, there will be a warning sign when the standard exceeds the standard. Larger legible LCD display with backlight, which can show the measurement quickly, clearly and easy to read. đŠăHandheld Friendly Materialăâ Composite material injection molding process is adopted in this noise meter for casing with anti-drop structure design. The decibel meter is not only extremely wear-resisting,but also elegant. đŠăPacking Listăâ 1 x sound meter; 3 X 1.5v batteries; 1 x Wind resistant sponge ball; 1 x Operation Manual. đăABOUT USăâNoise volume detector comes with 3 pieces 1.5V AAA battery. User manual easy to read. If you have any problem or suggestions about our stud finder please let us know it and we provide 7*24 hours technical support and customer service.