Product Description

Benetech GM1356 Sound Level Meter

This unit has been designed to meet the measurement requirement of noise engineers, noise quality control and health prevention in various environments, such as noise measurement in factory, office, traffic road, family and all other noise measurement applications.

Features Benetech GM1356 Sound Level Meter

This unit was designed according to following standards:
º International electrician committee standard: IEC PUB 651 TYPE2
º US national standard: ANSI S1.4 TYPE2
Accuracy up to +/-1.5dB
Measurement range is 30 to 130dB
Fast/Slow Time weigting selection
Automatic backlight
The maximum value holding function
Auto power off 10 minutes
A/C Frequency weighting selection
Both AC and PWM signal output are available
Calendar function
4700 data record function
Connect with the PC through USB, provides data record downloading, real-time data sampling analysis, and printing graph&data functions

Specifications Benetech GM1356 Sound Level Meter

Calibration sound source	94dB@1KHz
Measurement range	30~130dBA、35~130dBC
Accuracy	±1.5dB（reference sound pressure standard 94dB@1KHz）
Frequency response	31.5Hz~8.5KHz
Resolution	0.1dB
Measuring level	30 to 80 , 50 to 100, 60 to 110, 80 to 130, 30 to 130
Dynamic range	50dB/100dB
Overload indication	OVER / UNDER
Frequency weighting characteristic	A and C
Digital display	4 digits
Analogy bar graph	1dB/1 bar graph
Sampling rate	FAST:8times/second;SLOW:2times/second
AC signal output	4Vrms/ full bar graph, output impedance is about 600 ohm
PWM signal output	Duty cycle =0.01X db value/3.3 x 100%
Dyna mic cha racteristic	FAST(high speed)/SLOW(low speed)
Calendar accuracy	±30seconds/day
Data stor age quantity	4700
The m aximum value holding	MAX
Auto power off	10 minutes without operation
Micro phone	1/2inch polarization capacitance microphone
Power supply	6V (4PCS 1.5V Alkline battery)
Dimension	70x35x256mm
Weight	244G (Without battery)
Battery life	20h continuous use(Alkaline batteries)