Feature:1. Mini digital sound level meter with stable and reliable performance.2. Wide measurement range from 30dB to 130dBA.3. Fast and slow sampling rate for choice: 125ms or 1s.4. Data hold function, maximum and minimum value measurement.5. LCD display with backlight, convenient to use at night.6. Low battery indication, automatic manual power off function.7. Compact and light, convenient to hold and carry.8. Equipped with sponge ball for sensor conservation.9. Mini digital sound level meter with stable and reliable performance. Wide measurement range from 30dB to 130dBA.10. Fast and slow sampling rate for choice: 125ms or 1s. Data hold function, maximum and minimum value measurement.11. LCD display with backlight, convenient to use at night. Low battery indication, automatic manual power off function.12. Mini digital sound level meter with stable and reliable performance. Low battery indication, automatic manual power off function.13. Wide measurement range from 30dB to 130dBA. Compact and light, convenient to hold and carry.14. Fast and slow sampling rate for choice: 125ms or 1s. Equipped with sponge ball for sensor conservation.15. Mini digital sound level meter with stable and reliable performance.Specification:Specifications:Color: WhiteMaterial: ABS PlasticDisplay: 5 digits LCD, maximum Display 99999Measuring Range: 30130dBAResolution: 0.1dBAccuracy: 1.5dB (under reference conditions)Frequency Range: 31.5Hz to 8.0HzFrequency Weighting: A WeightedOver Range: LCD Show OverTime Weighting: FastSampling Rate: 2times or sOperating Temperature: 040 (10 percent 80 percent RH)Storage Temperature: -1060 (10 percent 70 percent RH)Power Supply: 3 x 1.5V AAA Batteries (Not Included)Item Size: 15 x 5 x 2.7cm or 5.91 x 1.97 x 1.06inItem Weight: 72.6g or 2.56oz.Package List:1 x Digital Sound Level Meter1 x User ManualNote:When measuring under MAXIMUM mode, the meter will only display the value greater than the current value when measuring under MIN mode it will only display the value less than the current value.