GM1357 Digital Sound Level Meter

Measuring range: 30 to 130dBA/35 to 130dBC;
 Accuracy: ±1.5dB; Frequency range: 31.5Hz~8.5KHz;
Resolution: 0.1dB; Fast/Slow weight selection;  
Frequency weighting: A/C Sampling frequency: 2times/sec;
 Max Hold function; AC/DC output function