This digital sound level meter with 3 ½-digit 17 mm LCD display and function symbols offers manual range selection in 2 measuring ranges from 35 … 100 dB and 65 … 130 dB with a resolution of 0.1 dB. The fast / slow switching as well as the measured value and maximum value holding function and the internal circuit for checking the calibration (94 dB) emphasize the versatility of this device.