The Climomaster Velocity & Temp Probe 6561-2G from Kanomax measures air velocity and air temperature when used in conjunction with the Climomaster Hot Wire Anemometer. This uni-directional probe gives high air velocity measurements from 20 to 9840 fpm and air temperature measurements from -4 to 158 °F. In order for accurate air velocity data to be obtained, the wind direction mark at the tip of the probe must be facing into the air flow.