At FLW, Inc., we are not just distributors; we are experts who understand the critical importance of air velocity measurement in maintaining safe, efficient, and compliant HVAC systems and industrial environments. For over two decades, we’ve been the United States’ leading supplier of TSI Instruments, including the renowned Alnor® range. Our commitment to quality and depth of expertise makes us the go-to source for professionals across the spectrum, from HVAC contractors and facility personnel to building engineers and industrial hygienists.