4-in-1 Environmental Meter (45170)

This 4-in-1 meter measures Humidity, Temperature,
Air Velocity and Light. 
The dual LCD simultaneously displays Temperature 
and Air Velocity or Relative Humidity. 
High Temperature air or surface measurements can 
be made using the built-in Type K input. 
Comes complete with built-in Humidity sensor, 
Light sensor and Vane wheel, 
wrist strap, and 9-Volt battery.
Air Velocity (ft/min): 80 to 5910 ft/min
Air Velocity (ft/min) Basic Accuracy: ±3%
Air Velocity (ft/min) Max Resolution: 10ft/min
For more details please refer datasheet.