About the product
1. Small and portable
2. Can be used for measurement of noise engineering, quality control, health prevention and environmental noise
3. Suitable for factories, offices, families, and etc
4. Powered by 3 x 1.5V AAA batteries(not included)

Features
1. Measuring range: 30-130 dBA
2. Accuracy: +-1.5dB
3. Frequency response: 31.5Hz-8000Hz
4. Frequency weighting feature: A weighting
5. Resolution: 0.1dB
6. Operating temperature: 0 - 40 celsius degree, 10%-80% relative humidity
7. Storage temperature: -20 - 60 celsius degree, 0-90% relative humidity
8. Min/Max/lock current value
9. LCD backlight
10. Manual/auto power off