HoldPeak 866A Digital Anemometer - Wind Speed Meter Measures Wind Speed + Temperature + Wind flow with Data Hold & USB - The Most Accurate Anemometer Available! (Black)(CE,ISO,ROHS,GMC)

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.

最近の各種製品は電源が一定時間で切れてしまう機能を持っているが、使い方によっては電源は勝手に切れて欲しくない時もあり、特に計測器等ではこれは余計なお世話でしかない。が…ｕｓｂ機能付きというのもあるかも知れないけどこの電源が勝手に切れるという余計なお世話機能を解除できるのは助かります。

The stated specs are misleading. The manual says the minimum measurable airspeed is 78 ft/min, but in real use this unit failed to register airflow of about 128 ft/min that was measurable on a better anemometer. In other words, it could not reliably detect airflow that was well above its own advertised minimum range. That makes it pretty useless for low-flow HVAC / bathroom vent testing, which is exactly the kind of application where sensitivity at the low end matters most. Maybe it’s fine for stronger airflow, but if you need to measure subtle ventilation airflow, I would not trust this device.

せめてSDカードなどでデーターが保存できれば☆5つでしたが、残念。それて当方が購入後に価格が一気下がったことは大変腹立たしい、何とかしてほしいものです。

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!