16-inch Gooseneck detector is easy to measure the hard-to-reach areasAir Velocity and Temperature measurements displayed on multi-functionFull 4-digit display of air velocity in m/s, ft/min, km/h, MPH and knotsºC/ºF temperature measurement via built-in thermistorData hold and Min/Max Rec. functionsLow battery indication and auto-power offComplete with 9V battery and carrying case Current mode status will be save after power off