4 In. (100 Mm) Large Vane CFM/CMM Thermo-Anemometer
The TRIPLETT Model CFM400 4 in. The auto power off (with disable) function conserves battery life. Includes 4 AAA batteries and hard carrying case. 1-year warranty. Product Depth (in) 14.17 in. Product Width (in) 2.76 in.