Features 【Noise Testing】: The decibel meter is able to test the decibel to show the sound level, the noise meter will provide you with real time data, which is designed to capture a wide range of frequencies, ensuring comprehensive noise testing. 【High Accuracy】: This hand-held sound level meter with 30‑130dBA measuring range and ±1.5dB accuracy, also ensures quick response and high sensitivity, which can ensures precise noise testing, allowing you to accurately measure decibel levels in your home or office environment. 【Easy to Carry】: The DB meter designed to be compact in size and light in weight as well, can be easily carried in your pocket or bag. A practical little tool great for noise pollution monitoring, home theater setup, health and safety compliance, vehicle noise testing. 【LCD Backlight】: This noise tester equipped with sponge ball to filter out unwanted signals. USB data interface for reading and storing measurement data on a computer, with LCD backlight for easy reading in the dark. 【Widely Used】: Our environmental tester is 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, etc. Specification: Item Type: Sound Level Meter Material: ABS Battery: 3 x 1.5V AAA battery(without battery) Function: For sound level detection. Measuring Range: 30~130dBA Accuracy: ±1.5dB(94dB, 25℃ ±2℃) Resolution: 0.1dB Frequency Range: 31.5HZ~8KHZ Frequency Weighting: A Package List:1 x Sound Level Meter1 x User Manual Package List 1 x Sound Level Meter 1 x User Manual