With form factor that supports one-handed operation, DAF3009 can measure all parameters associated with installing, testing, and fine-tuning performance of HVACR system: airflow volume (CFM or CMM), air speed (fpm, m/sec, km/hr, mph, or knots), enthalpy (BTU/lb or kJ/kg), ambient/dew point/wet bulb temperatures, wind chill index, and RH. Features include Auto Power Off function; backlit, dual-readout LCD; vane and sensor cap; and tripod mount.