buy cheap Mini Digital Sound Level Meter (GM1351) wholesale on China Gadget Land

buy cheap Mini Digital Sound Level Meter (GM1351) wholesale on China Gadget Land

This device 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
Accuracy: ±1.5 dB
Digit & Resolution: 4 digits & 0.1 dB
Frequency response: 31.5Hz ~8.5KHz
Frequency weighting characteristic: A
Sampling rate: 2times/second
Microphone：1/2 inch polarization capacitance microphone
Max reading
Automatic backlight
Low battery indication
Automatic power off

Power: 9V battery (6F22)
Dimension: 57*36*149mm
Main unitWeight: 144g