1. Display: 30x30mm, four-numbers display, maximum 1999
2. Frequency weighting: A weighting
3. Measuring range: 30 to 130dB
4. Accuracy: +/-1.5dB (at reference sound pressure level, 94dB 1KHz)
5. Resolution: 0.1dB
6. Microphone: High-sensitivity 1/2-inch condenser microphone
7. Frequency response: 31.5Hz-8KHz
8. Time weighting: fast 0.125 seconds, slow 1 second
9. Sampling rate: 2 times per second
10. Data display: data hold, maximum value, minimum value, backlight, low battery prompt
11. Automatic shutdown: 15 minutes of no operation
12. Working environment: -10 to 50 degrees Celsius, no more than 80% relative humidity, indoor altitude less than 2000m
13. Storage environment: -10 to 50 degrees Celsius, no more than 70% relative humidity
14. Power supply: 3 x 1.5V AAA batteries (not included)
15. Dimensions: 160x56x28mm
16. Net weight: about 114g
2. Frequency weighting: A weighting
3. Measuring range: 30 to 130dB
4. Accuracy: +/-1.5dB (at reference sound pressure level, 94dB 1KHz)
5. Resolution: 0.1dB
6. Microphone: High-sensitivity 1/2-inch condenser microphone
7. Frequency response: 31.5Hz-8KHz
8. Time weighting: fast 0.125 seconds, slow 1 second
9. Sampling rate: 2 times per second
10. Data display: data hold, maximum value, minimum value, backlight, low battery prompt
11. Automatic shutdown: 15 minutes of no operation
12. Working environment: -10 to 50 degrees Celsius, no more than 80% relative humidity, indoor altitude less than 2000m
13. Storage environment: -10 to 50 degrees Celsius, no more than 70% relative humidity
14. Power supply: 3 x 1.5V AAA batteries (not included)
15. Dimensions: 160x56x28mm
16. Net weight: about 114g