Features: The home noise tester ensures precise measurement for accurate results. This user friendly testing device features a clear display and a wide measurement capacity, making it suitable for various environments. Designed for home users, engineers, architects, and individuals who require reliable measurements. Measure noise in different settings such as homes, offices, and schools to ensure compliance with safety standards. The Home Noise Tester helps you assess and manage noise effectively, creating a more comfortable living or working environment. Specifications: Material:ABS, electronic component Size:Approx.145x55x33mm/5.7x2.16x1.29inch Display screen size:Approx.37x41mm/1.45x1.61inch Color:Black Style:TA651A/TA651B Measuring range: 30-130dBA Measurement accuracy: ±1.5dB Working temperature: 0-60℃ Resolution: 0.1dB Weight:115g(without include battery) Power supply:3x1.5V AAA(R03/LR03) Package Includes: 1x Decibel Meter note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.