Dwyer Instruments UFC-122: The Ultimate Flow Calibrator for Unmatched Accuracy and Versatility Experience unparalleled precision with the Dwyer Instruments UFC-122, the industry-leading flow calibrator. Its advanced technology and intuitive interface empower you to calibrate flow meters with unmatched accuracy and efficiency. Unlike competitors, the UFC-122 offers: NIST-traceable calibration for unparalleled accuracy Wide flow range (0.005 to 120 SCFM) for versatile applications User-friendly interface for seamless operation Compact and portable design for on-site convenience* Rugged construction for durability in demanding environments