The Alnor® Rotating Vane Anemometers measure air velocity, air volume, and temperature in imperial or metric units. The 4-inch (100mm) head automatically averages velocity and volume readings, making them essential tools for measuring unevenly distributed or fluctuating flows.

Model RVA801 is a lightweight, robust and simple to use rotating vane anemometer that provides accurate and reliable readings every time. Ideal for HVAC commissioning at grilles, ducts and diffusers; the RVA801 displays readings in metric or imperial mod.