[OBXandos]

My data center recently experienced an evaporator coil freeze up on one of our CRAC units. The only indication we had was a rise in temps across the room. We checked all the usual problems but found nothing wrong. We finally had to call someone out to look into the problem and that is when we found out the real problem.

So I have been trying to come up with a possible detection method. I cannot trust a temp reading since they were coming out fine. The problem was little airflow. So I thought I could use an anemometer to measure airspeed/CFMs. The only ones I have been able to find are handheld or big ones for weather stations. Has anyone here heard of an anemometer that could connect to some monitoring software like Solar Wind'ss Orion or APC's Netbotz systems.

I would also ask if you guys could think of a different/better option.

Any help would be greatly appreciated.
JohnG