
Benetech GM1356 Sound Level Meter 30~130dBA 35~130dBC 31.5Hz~8.5KHz AC/PWM output USB data to PC
Features 1.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 2.Accuracy up to +/-1.5dB 3.Measurement range is 30 to 130dB 4.Fast/Slow Time weigting selection 5.Automatic backlight 6.The maximum value holding function 7.Auto power off 10 minutes 8.A/C Frequency weighting selection 9.Both AC and PWM signal output are available 10.Calendar function 11.4700 data record function 12.Connect with the PC through USB, provides data record downloading, real-time data sampling analysis, and printing graph&data functions. Specifications 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 r