This hot-wire anemometer displays air velocity and temperature or CFM/CMM and temperature simultaneously on the large, dual LCD. Average up to 20 air volume points for a mean calculation. Other features include built-in RS-232 serial port, min/max, data hold, and auto shut-off. Meter is ideal for duct and ventilation measurements. Increase logging capabilities to 8000 data points with data module 10200-20 (sold separately). Download data to a PC via RS-232 interface (sold separately).