These thermoanemometers are perfect for use in lab or plant maintenance applications, environmental analysis, fume hood testing, and HVAC applications. Each meter simultaneously displays air volume (CFM), air velocity and ambient temperature (°F or °C) on the large backlit display. Additional features include: 20 point air flow averaging, Data Hold, Min/Max, and auto-power-off. User can select desired unit of measure for both temperature and air velocity.