Holdpeak 866A Anemometer HVAC, Pro CFM Air Flow Meter for Wind Speed Temp Humidity Dew Point Airflow Measuring Device, Handheld Wind Gauge Meter with USB

This anemometer works great and you can't beat the price point. I only use the analog readout so it is just what I need.

Handheld anemometer works as expected! I purchased this unit to use for storm chasing and when on grass fire calls. Mounts to tripod easily and provides the data that I am looking for. The unit itself its a bit weird to turn on, you have to press and hold the power button till it comes on. I have another similar unit with no RH readout, it will turn on much quicker. The USB data logging only works with Windows 7, hopefully the software package gets updated. I was able to install the software on Windows 10 and had to manually download several additional files and register them with the OS, there was still a driver disconnect present. Again, hopefully this gets updated in the future! Overall I am very pleased with the purchase, it does everything I want it to except for the Windows 10 compatibility issue I noticed. Solid 4 stars!

Seemed decent at first. Then I got a new turbo blower duster that hit 30 m/s before the fins completely shattered and went everywhere. I guess that means the turbo blower is good...but now no more reading wind speed!! If this is for natural wind outside, I'm sure it's great. Want to push it to its limit with powerful artificial wind? Not so great. Return window is closed, now I'm out the money I spent. Thats life

Works fine. Has given several erratic measurements out of the box, but mostly just fine. Not able to verify precision of measurements but they seems to be fairly accurate at least. Fan blade can wiggle in housing and if held in certain ways, it can affect how hard it is to turn the blades. The USB to computer communication is lacking. I was not able to get it to function. The manual is sparse on the subject and poorly translated. There was supposed to be some selection i could make but nothing seemed to bring up anything close.Good display, good response time of all measurements, many measurements and units. All for a good price. You get what you pay for but with this you get a fair variety. I also had the non-USB version prior (which was defective) and I upgraded to this one. I would buy the non-USB version and just record data manually again, unless I was made certain it was just a problem between the driver's seat and the steering wheel in trying to get the data recorder functions working.

I am first going to work on airflow in my HVAC system, and then rework my dehumidifier because of short cycling and this meter gives me a real time humidity level to work with while doing that.

I live in a windy area. I personally can calm my windy area by running out of my house to measure the velocity of the wind. I also bought one for my sister so we can play "my area is windier than your area". It's fun.

The meter didn't power on when it arrived. I put in new batteries and read through the manual, to no avail. When I followed the contact information in an attempt to get assistance, I was told they couldn't find my Amazon order. At this point I just decided to returned it.

Instructions confusing...contact with company to clarify was also confusing...but, product works well, I think, since I had to interpret how to use for CFM measuring HVAC supply and return vents air flow. Area of vents was in question...did I need to add this factor...not clear in instructions.