CASELLA USA'S CEL-620 integrating meter kit offers the power of digital signal processing and a full color LCD. The kit includes a real time octave band ANSI type 2 meter; acoustic calibrator; foam windscreen; attache-style kit case; pc download cable; and pc software. Excellent for long-term noise surveys, it performs in real time measurements in octaves from 16 Hz to 16kHz and third octaves 12.5 Hz to 20 kHz.