Large Vane CFM/CMM Thermo-Anemometer Features
- 4" (10cm) vane allows for more precise readings on larger size ducts
 - Air Velocity, Air Flow and Temperature
 - Built-in thermistor for air temperature
 - Multipoint and timed average calculations
 - Min/Max, Data Hold, and Auto power off
 - Complete with four AAA batteries and hard carrying case