ProsterHandheld Anemometer Portable Wind Speed Meter CFM Meter Wind Gauges Air Flow Thermometer with LCD Backlight for Weather Data Collection Outdoors Sailing Surfing Fishing

Nice price. Does the job. Easy to use. Concluded there was no point spending more on this type of instrument for home/hobby/general interest uses. I check home heating and cooling vent performance. the wind gusts on my balcony, wind out on the water, the extent of wind tunnels between buildings. Seems well built for the price.

I fly drones every day. Accurate wind speed is very important to me because knowledge of the wind speed and the second to second variations in wind speed are allow me to decide how to safely pilot my drones without crashing them or having them be blown away.This device is very sensitive and accurate whether measuring a 1 mph breeze, or a 12 to 35 mph gust. I have now used it for 56 consecutive days of flight and the 9 Volt battery is still holding a strong charge.Size: 6.5" tall; 1.5" thick; and 3.5" at its widest. The handle is 2.5" wide and 1.25" thick. Has a nice case. Fits well in my flying bag. Fits well in my small man's hand. Feels good in the hand.Weight with batteries is 7 oz.Construction: solid impact resistant plastic with heavy duty rubber grip in handle part.Impeller blade: 8 blades which rotate freely with the slightest breath.Screen: 1-1/8 × 1-3/8 inches. LCD which is very easy to read. Backlight is easily clicked on for low light situations.Sounds: makes nice chirps when turned on and when functions are changed.Functions: Easily switched between all the functions. I only use it for measuring wind speed in mph or kilometers/hour. Also, measures in knots. There are other functions listed by seller, but I do not use them.In summary, I am impressed with the quality of the build, its reliability, its ease of use, the readability of the screen and its portability. I can't be without it.Good going on a fine product at a great price.

So far, happy with this instrument. Have not had it long but it is easy to use and is providing good wind speed measurements. The data is used for reference on the race committee boat at sailboat race events. It is light enough to stuff in a jacket pocket but it is not small so I'm talking about a big pocket. If it proves durable it will be a great value. The only nit pick is that it uses a 9v battery so need to have a spare on hand. Nothing I own uses 9v except this. It would also be nice if it recalled the last Unit when turned off instead of having to reset it each time. It probably saves battery by not having persistent memory but the Knots unit is the last one in the cycle so every use requires a bunch of button presses. Leaving it on is an option but that uses up the 9v battery more quickly that it's worth.

It serves my purpose very well, which is to measure the varying strength of the winds which affect life on the balcony to our apartment.

Everything is great except the battery compartment. It has a short screw to open the compartment that is hard to use. A simple plastic locking clip would be safer/easier. For now I have to use gaffer tape to keep the compartment closed since the screw is gone. Also, when will electronics companies make a battery contact slider you can engage/disengage so you're not running through the battery when the unit is in storage? It's 2024!