Wall Mount Decibel Meter, 3.0" LED Noise Meter for Home, Factory, Classroom, 30-130dB Sound Level Meter with Alarm, A-Weighted Frequency

1、Accurate and Fast: Capacitive microphone sensor with high sensitivity measures 30-130dB, error only ±1.5dB, frequency response 31.5Hz-8.5KHz. Fast response captures sound changes in real time, providing stable data for both low and high noise.​ 

2、Fits Many Scenes: Great for checking environmental sound levels, used in noise engineering, quality control, and more. Works in offices, roads, homes, factories, construction sites—track noise in any environment.​ 

3、Easy to Use: 3.0-inch HD backlit LED screen for clear real-time readings. Can be wall-mounted or placed on a desk, easy to install, ideal for continuous monitoring. No need to hold it—long-term use is effortless.​ 

4、Thoughtful Reminder: Alarm is on by default; the decibel meter beeps and flashes for 2 minutes to lock data when noise exceeds set levels. Customize alarm range and duration (5s-120s), with a port to connect external speakers for timely alerts.​ 

5、Type-C Charging: DC5V 1A Type-C port with USB cable for easy charging. Use a regular charger to recharge—no frequent battery changes, ensuring uninterrupted monitoring for a more convenient experience.