HoldPeak Portable Digital Anemometer 866B Professional Anemometer Measures Wind Speed and Temperature, MAX/MIN/AVG, LCD Display, be Used to for Fishing, Shooting, Sailing and Shooting

Bought for pro drone flying. It's a decent size and comes in a carry case although could probably do with some padded protection. Instructions are useless but it's fairly intuitive. The main problem occurs in light and variable wind where it's difficult to know where the wind is coming from. Ideally this would indicate wind direction so you can point into wind for an accurate reading. However saying that it's stronger winds that I'm more concerned with and these tend to be from a fixed direction, and very easy to point into wind.The only thing that concerns me is that it doesn't stay on for very long. So if I try and do an average wind speed check it normally has switched off before I remember to read the value. Then the average value is cleared when switched back on. Not sure if this is a fault or not. Also it would make more sense for the blades to power the device and use battery to top up. However I've not used it enough to know how long batteries last.I like the inclusion of a tripod mount. I tried on a lighting stand but the stronger winds blew it over so definitely worth sticking on a normal tripod which will be much more difficult to topple. I also purchased a windsock to give wind direction, although the windsock also gives an indication of windspeed, perhaps making this a bit superfluous. But for a quick reference to wind speed this seems to fit the bill.

This seems to do the job very well, when it arrived I was slightly surprised at the size as it looks fairly small in the pictures, it can be easily held in one hand however and the larger size blades means it will pick up even the smallest of breezes.It has a backlight function which illuminates the screen with a nice bright light, very easy to see in all lighting conditions. It also comes with 2 x AAA batteries which were hidden inside the battery compartment wrapped in plastic which I found to my surprise after buying a fresh pack of triple As and unscrewing the 2 small screws which hold the battery cover in place.The thermometer seems to be accurate, and although I do not own another anemometer I trust the readings which it is given as it seems really very sensitive to even the slightest shift in wind speed. Today it seems to be completely still outside my house, when I held this out of the window I was getting readings between 0.3 km/h and 0.7 km/h.Included in the box there is also a nice little zip wallet to keep it safe, a basic instruction booklet and a small black lanyard/wrist strap which screws into the threading on the bottom of the unit - this can also be mounted on a tripod using the same threaded hole.You are able to switch between m/s, km/h, ft/min, knots and mph as the unit of measurement, and celsius/fahrenheit for temperature. There is also a max/min function which could be useful if like me you are using this to judge whether or not it is safe to fly a drone.I am very happy with this purchase and would recommend to anyone.

Although I’m a member of the Vine programme, this was a personal purchase.I operate a drone and before flying it’s very important to know, and record, the strength and direction of the wind, and the outside temperature.This handy device, which comes with a zipped case and a wrist-strap, requires two AAA batteries, which are supplied but not installed. To install the batteries the battery cover must be unscrewed using the small screwdriver which is supplied.Buttons on the front control power on/off, speed measurement units, temperature measurement units and a backlight. Two further buttons display minimum/maximum and average wind speed.Wind speed can be measured in m/s Km/h, ft/min, mph or knots. Temperature can be measured in Celsius or Fahrenheit.The meter can be hand-held or mounted on a tripod. Slowly rotating it until the maximum wind speed is shown gives a good approximation of wind direction.This is a good-value, very useful, device.

This review is for the HOLDPEAK 866B Digital AnemometerI bought this for 3 reasons.To check the wind speed for safe model helicopter flying, to test the flow from some fans that I deal with and to confirm air flow moving at various points within a room.The description basically says it all with regards to the specs and the features.Backlight for those dark corners and situationsAdjustable display with Mph, meters/s， Foot/minute，Km/hour Knots，Minimum and maximum detected speed record function (good for variable conditions or where you are using it and can't see the display).Average wind speed, or current speed.Built in thermometer will give temperature, which I find reasonably accuretThe impellor has no resistance, and will spin at the slightest air flow.The readout is clear, concise and with a "stay on" backlight for low light conditions.(it doesn't go off after a few seconds which is good if you are using it for an extended time)Nice handheld size, weight and feels well made. Won't be trying a drop test, well not on purpose anyways.Batteries are supplied inside the unit, and the plastic protective wrapping must be removed from them before use.Note: A small philips screwdriver will be needed to remove the 2 screws from the battery compartment.Bad points... None that I can see.Would I recommend to friends and family... yesWould I buy again ... yesThanks for reading, and I hope some information was useful.It is was, I'd appreciate a click on "yes" against "Was this review helpful to you" below.