The Kanomax Model 3910 50 LPM portable particle counter is the smallest in its class. The lightweight particle counter offers an increased 50 LPM flow rate, ISO 21501-4, and 21 CFR Part-11 compliance. The counter measures up to six particle sizes and is able to store 10,000 records. It has a large LCD touch screen, and the standard mode simplifies many of the calculations needed to certify a cleanroom for use. The optional 6531-21 probes allow users to measure air velocity, temperature, and humidity. The unit helps maximize productivity and minimize downtime.