Extech Air Flow Meter

Ergonomic pocket size housing, large dual LCD
This rugged 3-in-1 meter measures Humidity, temperature and Air Velocity. High Temperature measurements can be made using the Type K Thermocouple input. Features include: Data Hold, Min/Max, Auto Power off with disable, and low battery indication. Comes complete with wrist strap and 9V battery.

Features:

Simultaneously displays Temperature and Air Velocity or Relative Humidity
Type K input socket for high temperature measurements to 2372°F (1300°C) using optional (TP870) Type K thermocouple
Min/Max, Data hold, Auto power off with disable feature
Built-in low friction vane wheel improves air velocity accuracy
Thin-film capacitance humidity sensor for fast response