The Kanomax Climomaster Velocity & Temp Probe 6543-2G enables the Climomaster Hot Wire Anemometer to measure air velocity and air temperature. This probe is omni-directional, so it is capable of producing accurate air velocity measurements regardless of its orientation. The 6543-2G probe gives air velocity measurements from 10 to 1000 fpm and air temperature measurements from -4 to 158 °F.