GM1356 BENETECH เครื่องวัดระดับเสียง SOUND LEVEL METER

GM1356 BENETECH เครื่องวัดระดับเสียง Sound Level Meter Measuring level: 30~130, 40~90, 50~100, 60~110, 80~130 เครื่องวัดระดับเสียง GM1356 GM1356 Sound Level Meter Product DescriptionGM1356 Sound Level Meter * 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 sound 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 sound 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 * PWM output * Calenda * 4400 data store * USB computer interface * Analysis software * Overload indication: OVER / UNDER * Automatic backlight * Low battery indication * Auto power off * Packing method: PP box + Gift box * Power: 1.5V AA* 4pcs or DC 6V 100mA adapter * Dimension: 256*70*35mm * Weight: 308g (including batteries)