Accommodates manual adjustment of air volumes from 10 to 6000 liters Offers data storage for up to 99 parameters / 2000 measurement records Aids in compliance with HACCP, FDA FMSA, USP 797 and ISO 14698-1 Runs off a rechargeable battery or AC power Supports standard Petri dishes of 90 mm / 3.5 in Backlit LCD Sterilizable collecting head