1. Measuring range: 30dB - 130dB
2. Resolution: 0.1dB
3. Accuracy: about 1.5dB (based on standard sound source, 94dB@1KHz)
4. Sampling rate: 2 times / sec
5. Time weighting: FAST 0.125s, SLOW 1s
6. Frequency response: 31.5Hz - 8KHz
7. Noise display: 4 digits, up to 1999
8. Microphone: high sensitivity 1/2 inch condenser microphone
9. Auto shutdown: 15min (can be manually shut down)
10. Operating environment: -10 - 50 degrees Celsius, 80% relative humidity, indoor altitude less than 2000m
11. Storage environment: -10 - 50 degrees Celsius, within 70% relative humidity (remove the battery)
12. Power supply: 2 x 1.5V AAA (R03/LR03) batteries (not included)
13. Display size: about 3.4 x 3.1cm
14. Dimensions: about 16.7 x 5.9 x 3.1cm
15. Weight: about 114g

Features:
1. High-sensitivity 1/2-inch condenser microphone, high precision, high sensitivity, instantaneous response
2. With low voltage display
3. Large HD display with white backlighting
4. 15 minutes without operation after the automatic shutdown (can be canceled manually)
5. Large range

Packing list:
- Main unit x 1
- Cloth bag x 1
- Instruction manual x 1