*Measuring Range: 30~130dBA, accuracy: ±1.5dB;
*Frequency Weighting: 31.5Hz~5KHz;
*Max/Min/Lock current value locking;
*Overrange warning;
*Low battery indication;
*Backlight;
*Auto power off after 10 mins no operation;
*Power supply: 3*1.5V AAA battery; *Net weight: 82.5g;
*Dimension: 128*52*30mm;
