The Airy Technology P611 handheld particle counter measures 0.3 μm to 10.0 μm with a flow rate of 0.1 CFM (2.83 LPM). Only 1.26 lb (0.57 kg), user-friendly and easy to configure, this handheld particle counter displays 6 size channels as well as (optional) temperature and relative humidity on its 3.5” color LCD display. The Airy Technology P611 stores 10,000 sample records that can be viewed on the unit or on a computer via USB cable. The P611 complies with ISO 21501-4 and includes a two-year warranty. With excellent quality and reliable performance, the Airy Technology P611 is the best solution for professionals who validate ISO cleanrooms (Class 5 - 9) and investigate indoor air quality matters. * For details, please contact us or download our catalog.