This top of the range model boasts an ultra low noise floor allowing extremely quiet noise to be measured and recorded. This model also features dual measurement capability meaning two versions of applicable parameters can be measured simultaneously. This feature means you only ever need to measure once to capture all the data you need! This model is ideal as a dedicated Environmental Sound Meter with full data logging capabilities recording samples with an interval period as low as one second … even Lns. Analysis of recorded data can be achieved by transferring the data from the instrument into the software dBdataPro using the instruments USB port.