Multiple Modes for Versatility: Includes MAX and MIN modes for tracking the highest and lowest sound levels, plus a data hold function for easy reference. Clear LCD Display: Features a 5-digit LCD display with backlight, making it easy to read measurements in low-light conditions or at night. Power-Saving Design: Automatic and manual power-off options, along with a low battery indicator, ensure efficient energy use and extended battery life. Compact and Lightweight: Portable design with sponge ball sensor protection, making it easy to carry and use for extended periods without fatigue. Reliable measuring instrument for measuring loudness, sound and noise levels from environmental and mechanical sources.