The Datalogging CFM Anemometer can record up to 16,000 data points in the field along with time and date. These can later be downloaded to a computer via the meter's RS232 port and the results viewed instantly on software that is included with the unit. The software also enables real time data logging directly from the meter to the computer. The microprocessor calculates air volume (CFM) as well as air velocity and min-max and simultaneously displays air temperature in °C or °F. This unit also reads type-K or J thermocouple probes. Each unit features a calender/clock, auto power off and hold functions. It has a detachable probe, fold-out tripod and a large easy to read LCD. Comes ready to use in a protective foam lined carrying case complete with metal vane anemometer probe, software, RS232 cable, 4 AA batteries and a 3V button cell battery. 7 3/4" x 3" x 1 1/2", 31 ounces