Separated Extendable Wind Sensor: Built with user-friendly extendable wind sensor vane, so you can still look at the readings easily while you testing balancing the AC or dust collection system. And the large Backlight LCD display can help you read the wind changes easily;
Wide Applications: This multifunctional CFM wind meter comes with a carrying case, and works well in outdoors, indoors, industry and home, such
as: HVAC system, CFM/CMM calculation, dust vent maintenance, hiking, camping, boat sailing, sky surfing, shooting, drone flying;