Extech SL355 Personal Noise Dosimeter

What's Included: Belt clip, clip-on 0.5 in. microphone with 2.6 ft (0.8 m) cable, mini screwdriver, software, USB cable, carrying case, and three AAA batteries. Low cost, lightweight, and easy-to-use Perform OSHA and IEC noise accumulation surveys One user-defined measurement setup for quick and easy set up and operation Adjustable criterion level, exchange rate, and threshold for additional flexibility Measures frequency weighted noise exposure and peak sound level simultaneously Datalogs up to 12,000 readings when used as a sound level meter -- sampling times between 1 sec and 1 hr In sound level mode, meter displays sound level, time-averaged sound level (Leq), peak, and sound exposure level (SEL) Stores up to 20 dosimeter surveys Data includes start/stop time, % dose, % dose projected for an eight hour period, and peak level when used in the dosimeter mode Optional 94/114 dB calibrator available to perform before and after calibration checks per ANSI standards USB interface with Windows® XP/Vista/7 compatible software for controlling setup, retrieving stored events, or analyzing real time measurements