可程式音量计

Auto Ranging Measurement 30dB to 130dB/Work with Window Software/32,000 Records Data Logger/Bar graph Indication with Back Light/Frequency Weighting: A, C/4-Digit Display with updated cycle 0.5s/0.1dB resolution/Max/Min Hold Function/The standard Fast and Slow Time weightings/ AC/DC signal output
/Overload condition indication/Auxiliary output jack/IEC 651 Type II, ANSI S1.4 Type2./Back screw hole tripod connection/External Power DC 9V input/Calibration Potentiometer easy to adjust/USB Real Time Display Software for Window 95/98/2000/XP/7