1,Digital Display with Dynamic Graph 2,Auto / Manual Range 3,Max Hold, F/ S Response, A/ C Weighting 4,PWM/AC, USB software

SPECIFICATIONS	GM1356
Microphone	1/2 Inch Electret Condenser Microphone
Measuring Range	30~130dB
Accuracy	±1.5dB
Frequency Range	31.5HZ~8.5KHZ
Frequency Weighting	A/C
USB Computer Connect	USB
Data Analysis	online/offline
Data Store	4700 stock
AC\DC Output	√
Low Battery Indication	√
Over Range Indication	√
Resolution	0.1dB
Time Weighting Selection	Fast/Slow
Max Hold Function	√

Sound Level Meter GM1356 (USB software)