Feature: 1. LCD backlight for clear reading. 2. Wide measuring range: 30-130dB. 3. Sound level measurement. 4. Min./Max./Lock current value. 5. Hold the measurement data. 6. Manual/auto shutoff. 7. Wide measuring range: 30-130dB. Sound level measurement. 8. Min./Max./Lock current value. Hold the measurement data. 9. Manual/auto shutoff. Equipped with sponge ball. 10. Portable and easy to use，suitable for sound quality control in factory, office, home, school and construction site. 11. LCD backlight for clear reading.Wide measuring range: 30-130dB. 12. Sound level measurement.Min./Max./Lock current value. 13. Hold the measurement data.Manual/auto shutoff. 14. Equipped with sponge ball. 15. Sound level measurement.Manual/auto shutoff. Specification: This meter is featured with wide measuring range (30-130dB). It's portable and easy to use and a handy instrument for sound quality control in factory, office, home, school and construction site. Features: LCD backlight for clear reading. Wide measuring range: 30-130dB. Sound level measurement. Min./Max./Lock current value. Hold the measurement data. Manual/auto shutoff. Equipped with sponge ball. Portable and easy to use，suitable for sound quality control in factory, office, home, school and construction site. Specifications: Measuring Range: 30-130dBA Accuracy: ±1.5dB Resolution: 0.1dB Frequency Response: 31.5Hz to 8KHz Frequency Weighting Features: A Weighting Display: LCD Display Power Supply: 3 * 1.5V AAA Batteries(not included) Operation Environment: 0-40°C 10-80%RH Storage Environment: -10-60°C 0-90%RH Dimension: 50 * 33 * 160mm / 1.97 * 1.3 * 6.3in Weight: 82g / 2.92oz Package Size: 21 * 15 * 6cm / 8.3 * 5.9 * 2.36in Package Weight: 130g / 4.59oz Package List: 1 * Sound Level Meter 1 * Sponge Ball 1 * User Manual (English) Package List: 1 * Sound Level Meter 1 * Sponge Ball 1 * User Manual (English)