Digital Sound Level Meter Decibel Logger Tester, Noise Level Meter Tester Decibel , GM1357,30-130dB,MOQ=1

Digital Sound Level Meter Decibel Logger Tester, Noise Level Meter Tester Decibel , GM1357,30-130dB,MOQ=1

Product Description

Features:
Designed according to following standards: International Electrician Committee Standard: IEC 651 TYPE 2 & ANSI 1.4 TYPE 2.
Wild Measurement Range: 30-130dB.
Accuracy: up to ± 1.5dB.
Windscreen for Filter-out Unwanted Signals.
With 2 equivalent weighted sound pressure levels A and C. AC &
DC analogy signal output are available connecting to frequency analyzer level recorder, FFT analyzer and graphic record.
A frequence weighting for general sound level measurements.
C frequence weighting for checking the low-frequency content of sounds.
Large LCD screen with digits reading.
Fast and Slow dynamic characteristic modes.
Fast rate to pick up the current reading.
Slow rate to pick up the reading of average within 1 second.
Maximum value holding function to lock up the maximum reading.
Equipped with sponge ball.
Auto power off design for energy saving.
Portable, easy to use and handy instrument for sound quality control in factory, office, home, school and construction site.

Specifications:
Accuracy: 1.5dB (under reference conditions)
Measuring Level: 30-130dB (A)/35-130dB (C)
Frequency Range: 31.5Hz to 8.5KHz
Linearity Range: 50dB/100dB
Digital Display: 5 digits
Resolution: 0.1dB
Bar Graph: 50 dB
scale at 1 dB step for monitoring current sound pressure level display
Overload Indication: OVER/UNDER
Frequency Weighting: A and C
Level Ranges: 30-80dB, 50-100dB, 60-110dB, 80-130dB
Self Calibration Time: 3sec
Sampling Rate: 20 times/seconds
AC Signal Output: 0.707Vrms/ full bar graph, output impedance is about 600ohm
DC Signal Output: 10mV/dB,output impedance is about 100ohm
Dynamic Characteristic: FAST (high speed)/SLOW (low speed)
Power Supply: 4x AA 1.5V alkaline cells or DC 6V 100mA (no include)
Microphone: 1/2" Electrinic Condenser microphone
Item dimensions: 256 x 70 x 35mm
Item weight: 230g