Extech 407355 Noise Dosimeter with PC Interface features: Measurement of total sound exposure over an 8-hour period; Perform OSHA and IEC Noise accumulation surveys; Adjustable Criterion Level, Exchange Rate, and Threshold; Ideal for personal/workplace accumulated noise exposure; Records/displays: % dose, dB level, exposure time, and peak events; Also has storage of 5 separate surveys, Bi-directional RS-232 with Windows?« compatible software and a real time clock.
Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to 
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Replaced by VFM200 - no temp & humidity