*This unit was designed according to following standards: 
----A. International electrician committee standard: IEC PUB 651 TYPE2 
----B. US national standard: ANSI S1.4 TYPE2

*Measuring range: 
----30~130 dBA

----35~130 dBC
*Accuracy: ±1.5 dB

*Digit & Resolution: 5位 & 0.1 dB

*Frequency response: 31.5Hz ~8.5KHz

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

* Frequency weighting characteristic: A & C

* Time weighting: FAST/SLOW

*Sampling rate: 2times/second

*Microphone：1/2 inch polarization capacitance microphone

*AC/DC output

*Max reading

*Overload indication: OVER / UNDER

*Low battery indication

*Auto power off / Cancel “Auto power off”


*Packing method: PP box + Gift box
*Power: 9V battery* 1pcs or DC 6V 100mA adapter
*Dimension: 207*70*29mm
*Weight: 178g (including batteries)