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 usesuitable 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 usesuitable for sound quality control in factory, office, home, school and construction site.Specifications:Measuring Range: 30-130dBAAccuracy: ±1.5dBResolution: 0.1dBFrequency Response: 31.5Hz to 8KHzFrequency Weighting Features: A WeightingDisplay: LCD DisplayPower Supply: 3 * 1.5V AAA Batteries(not included)Operation Environment: 0-40°C 10-80%RHStorage Environment: -10-60°C 0-90%RHDimension: 50 * 33 * 160mm / 1.97 * 1.3 * 6.3in Weight: 82g / 2.92ozPackage Size: 21 * 15 * 6cm / 8.3 * 5.9 * 2.36in Package Weight: 130g / 4.59ozPackage List:1 * Sound Level Meter1 * Sponge Ball1 * User Manual (English)Package List:1 * Sound Level Meter1 * Sponge Ball1 * User Manual (English)