1. Sensor: 1/2 inch condenser microphone
2. Measuring range: 40-130dB
3. Measurement accuracy: about 2dB
4. Frequency response: 31.5Hz-8.5KHz
5. Frequency weighting characteristics: A and C characteristics
6. Resolution: 4 digits, resolution 0.1dB
7. Dynamic characteristic selection: Fast / Slow
8. Automatic shutdown: after about 10 minutes
9. Sampling rate: about 2 times/second
10. Power supply: 1 x 6F22 9V battery (not included) or DC 9V 100mA DC power supply
11. Working environment: 0 - 40 degrees Celsius, 10 - 80%RH
12. Storage environment: -10 - 50 degrees Celsius, 10 - 70%RH
13. Power-on self-test time: about 4 seconds
14. Applicable scenarios: noise measurement indoors and outdoors, electrical appliances, cars, libraries, construction sites, etc.
15. Size: about 23.5 x 7 x 3cm
16. Weight: about 380g

Features:
1. USB data connection, real-time data sampling analysis and download storage printing after connecting to the computer
2. The high-precision probe is made of pure copper plating material, equipped with a windproof and noise-reducing ball, which is more stable and accurate
3. Hidden bracket design, external tripod bracket can be connected to facilitate viewing data
4. 5 measurement gears are optional, highly targeted
5. External power supply, AC/DC analog signal output jack

packing list:
- Host x 1
- Cloth bag x 1
- Instructions x 1
- USB cable x 1