USB-Powered Decibel Meter — Wall-Mountable, 3" Digital Display, Precise Sound Level Tester

Digital environmental noise meter that delivers accurate sound measurements. Using digital sensing technology, it precisely captures the strength and frequency of sound with high accuracy and a wide measuring range. USB-powered and designed for wall hanging, the unit includes a clear 3" digital display for straightforward monitoring. Suitable for home, office, clubs, colleges and universities, classrooms, hotel rooms, hospital wards, hotels, laboratories and other places.