【Noise Meter】This noise meter is an excellent tool for checking, monitoring or regulating and testing the sound level in any environment and can be used for noise engineering, product quality control, health care and treatment, etc. 【High Precision】The sound level meter's measuring range is 30-130dBA with fast response and stable and reliable performance. This product is a high-precision noise meter with an accuracy of ±1.5dB. Real-time monitoring can provide you with accurate data on the sound level in the area. 【Smart Design】The sound meter features backlight alarm, large LCD display, maximum/minimum noise meter, data hold function, automatic/manual shutdown, battery indication. 【LCD Display】The digital display is a 5-digit LCD display with a resolution of 0.1dB. Large backlit digital LCD display, the reading effect is clearer in dark places. When the battery is low, the LCD screen will show a low voltage icon, indicating that the power is low at this time and the battery needs to be replaced. 【Wide Application】This large LED display decibel meter can be hung on the wall or placed on a table, making it an ideal noise meter for testing sound levels in classrooms, studios, major thoroughfares, factories, construction sites, homes, offices, etc.