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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
