Extech SDL310 Data Logging Vane Thermoanemometer; Heavy-Polymer Vane

Anemometers or wind gauges have been around since the early days of the Weather Bureau. Vane anemometers combine a wind vane for airflow direction with a propeller-like device that measures wind speed. Hot-Wire Anemometers are thermal anemometers with exposed hot wires. They measure changes in wire temperature via heat lost as it is cooled by the wind, which is converted into fluid velocity. Because wind speed is an indication of a change in weather patterns, meteorologists rely on anemometers (or weather stations containing them) for wind patterns and assess how these patterns relate to humidity, pressure, and temperature. You'll find anemometers at airports, harbors, railroads, and other locations where wind flow is important. Weather enthusiasts may use them on roofs, boats, poles, and other home installation sites. These thermoanemometers operate over broad air velocity and temperature ranges - ideal for the HVAC professional. Large 9999-count dual LCD provides simultaneous air velocity and temperature measurements. The low-friction ball bearing vane wheel is connected to the meter by a 3.9 ft (1.2 m) long cable. Other features include record and recall of min/max readings, data hold, and auto power off with disable function. Accept external type J and K thermocouple inputs for higher temperature measurements to 2372°F (1300°C). What's Included: SD card, vane sensor with 3.9 ft (120 cm) cable, six AA batteries, and hard carrying case Records data on an SD card in Excel® format for easy transfer to a PC for analysis Measures Air Temperature to 122°F (50°C) and air velocity to 4930 ft/min Stores 99 readings manually and 20M readings via 2G SD card Type K/J Thermocouple input for high temperature measurements Large (9999 count) LCD displays Air Velocity and Temperature simultaneously 2% velocity accuracy via low friction ball bearing vane wheel on 39" (1 m) cable Record/Recall Min, Max, Data Hold and Auto power off Adjustable data sampling rate: 1 t