WM-5

The WM-5 is a great unit that tells you key weather measurements. Especially neat is tracking changing pressure over time, and the ability to record max wind speed to review later. The dew point reading is also handy. I had the WM-5 with me at the Outer Banks in NC during Tropical Storm Hermine and had fun with both those features. I tracked falling pressure all through the night as the storm moved in. In the morning it was clear and sunny but the unit was reading a very low pressure. I thought maybe it was wrong but sure enough the back side of the storm wound up again shortly after- it was neat knowing the center of low pressure had passed. I then took it out on the beach to get some wind speeds and was literally blown away. It recorded sustained 40-50mph winds and a gust of over 76mph, shown in the picture. It's a lot of fun to use it in such conditions when the impeller is really ripping in the wind. It's not without disappointments though. The altitude reading based on pressure is not reliable (I am currently 440 feet below sea level here in Virginia?) and takes serious study of the instructions to understand how to set it. The unit also cannot accurately read temperatures below freezing because the battery freezes and it malfunctions. I also suspect the battery life is shorter than stated but I haven't seriously tested that- it'll stay on for a couple days continuously. It's handy to have the standard 1/4-20 tripod mount on the bottom, I often attach it to a small flex tripod. Overall this is an awesome tool for weather enthusiasts and people who spend a lot of time outside.

Still trying to get used to this... trying to use changing weather conditions to adjust shotgun scope settings. Like trying to adjust for windage, constant weather changes, like pressure, altitude, and humidity also affect shotgun pellets course of trajectory. Analysis paralysis!

I am a Na't Wx Service weather spotter. I chose this model because it does everything except measure rainfall. Wind speed in mph up to 89 mph, kph, or feet/second. Measures current speed, max speed. Barometer reads in in/Hg or Millibars. reads temperature F/C, relative humidity, dew point, wind chill/feels like temp. Corrects for altitude after first calibrated where you are (local elevation). the enclosed screen is a bit bigger than the window. Flashlight might be needed to read in reduced light.

Purchased as a gift for my GF. She likes it but it seams to takes a few hours for the humidity reading to be accurate, also it does not do barometric pressure at high elevations (it is advertised that it does not, but would be nice if it did). Over all she loves it.

this is a nice piece, measurements seem to be accurate against my home based weather station. only issue is when the battery starts to run low, you cannot cycle through each measurement, but it doesn't always show the battery low indicator. so if that happens, you just need to replace the battery.

Works well for sailing wind readings

Had to return. Bought to use when traveling in motorhome. This is meant for hiking or camping, not for traveling. The setup for each use is complicated and the display is so small it is difficult to read settings or change displays. Elevation calculation requires daily calibration if you change locations and elevation max's out below the height of many mountain passes.

I've used this for a few years now and it's still running strong. At just under 4oz, it goes with me nearly everywhere camping and hiking. The display has a lot of small characters, so if sight is a problem, you might look elsewhere. Otherwise, it's got a rich set of information that should satisfy everyone. The batteries don't last as long as I'd like, though I can't say that I've tested the number of hours one will last; my only caution is to not leave it running for hours or days at a time and always have a spare.