BOBOVAV Decibel Meter Sound Level Monitor, 30-130dB High Accuracy, A/C Weighted, Fast/Slow Response, Backlit LCD, Portable for Home Factory Office School

["Precise Measurement: This sound level meter measures from 30 dB to 130 dB with high accuracy up to ±1.5 dB. Real-time monitoring provides accurate sound level data for your environment","A/C Weighted Measurement: A-weighting simulates the human ear’s frequency response to low-level noise, ideal for environmental noise detection. C-weighting matches response to high-level noise, suitable for sound pressure analysis of machinery, motors and equipment","Fast & Slow Response: The meter supports switching between fast and slow response time constants. Fast mode uses a 0.125-second interval for general environmental measurement. Slow mode uses a 1-second interval for environments with large fluctuations in noise levels","Digital LCD Display: Features a 4-digit LCD display with 0.1 dB resolution. The backlit LCD ensures clear readings even in dark environments. A low-voltage icon appears on the screen when battery power is low, reminding you to replace batteries","Compact & Portable: Lightweight and easy to carry. Widely used in factories, transportation, automotive, baby rooms, audio systems, offices, as well as homes, schools and construction sites for sound quality control"]