1)Measuring range: 30~130 dBAï¼›35~130 dBC

2)Accuracy: ±1.5 dB

3)Digit & Resolution: 5digits & 0.1 dB

4)Frequency response: 31.5Hz ~8.5KHz

5)Measuring level: 30~130, 40~90, 50~100, 60~110, 80~130

6)Frequency weighting: A / C

7)Time weight: FAST/SLOW

8)Sampling rate: 2times/second

9)Microphone: 1/2 inch polarization capacitance microphone

10)AC/DC output

11)Max reading

12)Barcode indicate the value

13)Overload indication: OVER / UNDER

14)Low battery indication

15)Power: 9V battery x 1pcs(not included) or DC 6V 100mA adapter