Noise & Sound Level Meter 30-130dB — 18in LCD Decibel Tester ±1.5dB 31.5Hz-8.5KHz AC

High-precision sound level meter with a measurement range of 30-130dB and ±1.5dB accuracy. The device offers a frequency response of 31.5Hz-8.5KHz for reliable detection across a wide band. Large 18in ultra-large LCD provides a clear, easy-to-read display of measurement results. Built-in alarm system: indicator light flashes accompanied by a beep, alarm duration adjustable from 6s-120s, and a 3-level alarm sound option. Designed for convenient wall mount installation and ideal for use in home, offices, clubs, classrooms, hotel, rooms and other places. Simple to operate and powered by a DC 5V 2A adapter to ensure efficient, continuous operation. Precision measurement for noise monitoring and environment checks.