TSI Alnor VelociCalc Air Velocity Meter 9535-A, Probe EUC!
Works Great. There is a small pixel flaw on the screen that doesn’t affect anything. I just installed new batteries.
TSI Alnor 9535-A 6000 Max FPM Digital Display Anemometer
Air Velocity Resolution 1 fpm. Digital Display Screen Type LCD. Display Type Digital. Battery Size AA. Battery Chemistry Alkaline. Number of Batteries Required 4.