Withstands temperatures to 175°F (80°C) and airspeed to 7880ft/min Display Air Flow (CFM) or Air Velocity plus Temperature Air Flow displayed in 3 modes: Instantaneous value Up to 20 point average or 2/3 flow value Record and Recall MIN, MAX Data Hold plus Auto power off Built-in RS-232 PC Interface > Each Unit Includes Complete with 9V battery Protective rubber holster with standhard carrying case Metal vane sensor with 3.9ft (120cm) cable NIST certificate