1. 9.5 inches super large full-screen LCD with large bold red font to display for easy reading. 2. 24 hours real-time monitoring the sound level. 3. Support hanging on the wall(recommended) or free-standing on the desk. 4. Wide measurement range from 30dB to 130dB, Frequency: 31.5Hz - 8KHz, Resolution: 0.1dB/1dB. 5. Buzzing and flashing to remind you when the real-time measurement is reached to the alarm level, and hold the data for 3s then back to normal mode. 6. Suitable for checking and monitoring the sound level for personal, family, business, studies, industrial, etc.
