Decibel Meter, Digital Sound Level Meter Portable SPL Meter 30dB to 130dB MAX Data Hold with LCD Di Features: Large LCD display with backlight for clear reading. Wide measuring range: 30-130dB. Sound level measurement with stable and reliable performance. Low battery indicator, manual/automatic shut-off. Portable and easy to use, suitable for sound quality control in factory, traffic, car, baby room and audio system office, home, school and construction site. The digital display is a 4-digit LCD display with a resolution of 0.1 dB. Large LCD digital display with backlight, the reading effect is clearer in dark places. When the battery charge is low, a battery symbol appears on the LCD panel indicating that the battery charge is low at this time and a new battery needs to be replaced. This sound pressure level meter is lightweight and easy to carry. LCD Screen Low Battery Indicator Convenient and Lightweight