User-Friendly LCD Backlight Display: Large LCD display with backlight for easy reading, even in low light, plus a Low Battery and Overload Indication for a seamless user experience. Selectable Frequency Weighing: A/C Switch allows you to choose between dBA (human ear sensitivity) and dBC (machine noise), ensuring accurate readings for both environmental and machine noise. Comprehensive Package: Includes the sound level meter, a special toolbox, instruction manual, sponge ball for wind protection, and a small screwdriver, ensuring all you need for immediate use. Dynamic Features: Offers Level Range Selection and Max Hold to capture the highest noise levels. Sensitivity adjustment enhances measurement precision. Perfect for industrial noise control, neighborhood monitoring, audio calibration, and health and safety assessments.