Voltcraft sl 200 digital sound level meter voltcraft dt 805 p this sound level detector from voltcraft has a range of 31 5hz to 8khz as well as a sound level of 30db to 130db the maximum value and the details shown on the display can both be stored the sound level detectors meet the requirements of en 60 651 iec651 the sl 200 has the accuracy class 2 for general field examinations e g operations tests p p the values detected and the momentary units functions are displayed digitall