HVAC Anemometer 8-Blade CFM Air Flow Velocity Tester up to 67.1 mph

This device is easy to hold and use but...it could be improved if there was a base that it could fasten to that would allow it to swivel to accommodate movement by wind direction like an anemometer on a wind vane. In other worlds, a fin that would direct the anemometer to the proper wind direction. This is a hand held device. That means that you and your aching arms outstretched in a fixed position have to stand there positioned precisely in the right direction to capture the most accurate wind speeds. It gets tiresome waiting for a wind gust. One option is to have a mini windsock included to help determine the precise wind direction. a stick with a ribbon would do. But an easy to fabricate accessory would make this and most of the others far better devices. A very inexpensive convenient light device would be a great addition for sports like drones, kites, rc planes and copters.

I do a lot of target shooting and wind speed and direction are important factors for accuracy - there are many ways to determine direction but speed has always been something I had to guess - this little handheld(or tripod mounted) anemometer has taken out the guesswork - everyone who shoots targets or hunts should have one of these! - comes with a mini-tripod and a soft carry case small enough to carry in a day pack for hunting or setting to the side of a shooting bench - i'm sure there are many other uses as well - amateur meteorologists would find it a necessary tool as well - I for one am totally happy with my purchase - I would definitely buy this band again1

Since I do not need to know "yes this fan is exactly 24.7cfm"... but rather "does this duct modification produce better air flow than this other modification" ... the device works good. I don't have another device to compare it too, but thats fine. Since what this is measuring for me, works out. I would have loved this to be more 'boxy' in design, so that it could lay and stand, and sit all by itself. All the rounded edges makes it fall over.

Loved the price, if you need high accuracy this isnt the one for you. If you just need ballpark accuracy, it does what you need. Its strong too, I didn't have the wrist band attached and dropped it off a 8ft ladder, still works. Great little tool for the toolkit.

I bought this item because I work for a commercial cleaning company and I feel like we were changing out our vacuum bags way too often so this allows me to check the CFM on our vacuum cleaners to determine when the bag needs to be replaced due to air restrictions.

This is a nicely priced, fun little gadget that measures air speed. I've used it to test the thrust of air through my household air vents. Also, measures the wind during a storm. But you have to hold it...you can't set it down or it'll fall over. I believe it doesn't measure speeds above 85, if I remember correctly.

I am using this Handheld AP-007 Digital Anemometer to measure vent and duct air velocity in HVAC systems. This allows me to estimate CFM and other helpful metrics. I have no way to accurately calibrate the meter, but based on the measurements and calculations I have made thus far, it seems in the ballpark. Absolute accuracy is not critical for my application since most of my measurement needs are relative, just checking for air flow change after making damper and fan speed adjustments.

Good quality for the price