This TSI Certifier FA Controler Module Model 4078 is a reliable and high-quality unit suitable for measuring air flow and anemometer. It was manufactured in the United States and comes with one unit quantity. The brand of this unit is TSI, and it falls under the category of Other Test Meters & Detectors, Test Meters & Detectors, Test, Measurement & Inspection, and Business & Industrial.This module is used but in good condition.  Comes with the operator’s manual, spare module for parts, and a cd version of the operating manual too. Selling as is.