Features: Experience precise noise measurement with our 30-130dB Professional Decibel Meter, featuring high sensitivity for accurate decibel readings to help you monitors your environment's noise effectively. This handheld digital sound level meter boasts a capacitive microphones and adjustable fast/slow, ensuring high precisions with ±2.0dB accuracy and application in various setting. Ideal for homeowners, professional, and researcher, this noise detectors is perfect for anyone needing reliable sound level data for environmental assessments or technical evaluations. Utilize this decibel meter in diverse environment such as homes, offices, libraries, construction site, and public space to ensure compliance with noise regulations and maintain conditions. With user convenience in mind, the device features a clear LCD display, automatic shutdown for energy efficiency, and a sponges ball protective cover to guard the microphones, making it a essential tool for accurate noise monitoring. Specifications: Material: ABS, Electronic Component Measurement Ranges: 30-130dB Frequency Response: 31.5Hz-8KHz Data Hold: YES Backlit: YES Auto Shut Off: YES Battery: 2xAAA 1.5V Battery Requires(NOT Include) Size: About. 20.6x5.3x3.4cm/8.11x2.09x1.34in Package Includes: 1pc Decibel Meter note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.