This low cost and easy-to-use dosimeter is ideal for personal accumulated noise exposure measurement, workplace noise assessment and OSHA compliance surveys. Unit measure sound levels from 70-140dB and features adjustable criterion level, exchange rate and threshold level. Datalogger stores up to five dosimeter surveys. Data stored includes start/stop time, percentage dose, TWA and peak flags. Windows® compatible software can be used to control setup, retrieve stored events or analyze real time measurements. Unit measure 4.2"L X 2.5"W X 1.3"D and includes a belt clip, clip-on microphone, mini screwdriver, software, computer cables and adaptor, four AAA batteries and carrying case.