@Rocketman As for Hongyuv, they are targeting the professional market and don't have much in the way of wireless stations. There is one option that an amateur might consider for the Davis VP2 and that is plugged into the Davis ISS transceiver, which allows reading on the Davis console and Davis gateways. The 200Khz transceivers are impregnated against rainfall so that it does not cut out the measurement in heavy rainfall. The durability of such a coating is about 2-3 years, it can be quickly renewed afterwards. This is a better ultrasonic anemometer than the LCJ offered by Davis for the ISS. Wider measurement range, lower tripping threshold, plus optional heating of transducers.
One downside is that it refreshes every 2.5 s, but you gain wireless data transmission. Mine is on a cable and refreshes 5 times per second, which doesn't let any short bursts escape. In addition, the console gives a taste of 3 s, as recommended by the WMO.
https://www.alibaba.com/product-detail/HY-WDS2DVSE-0-60m-s-Ultrasonic_60803585058.html?spm=a2700.shop_plgr.41413.34.7bb67ee9f2iXkcFor this anemometer I have a HY-DISPLAY console with transmission over RS485. This allows you to save data to an SD card, send to the iot Hongyuv cloud, but also to the WU or your own server. My WDS2E is practically the maximum variant of this anemometer. It has a measurement range of up to 60 m/s, in addition it is extended with EMI + frequency at 5Hz output, but also GPS and compass, which I deactivated, as they are unnecessary and interfere with me in the field. The console is equipped with a WIFI module.
Optionally, the WDS2E can be extended with a wider measurement range up to 75 m/s.
Below you can see how such a kit with an ultrasonic wind meter based on 200Khz transducers performs against the Davis VP2 and Vue, which was right next to it. The appearance of red numbers on the Hongyuv display means that the wind speed has exceeded the threshold of the user-set alarm for high speed.
I use such a set mainly for storms where strong downwelling currents are interacting, and Davis provides me with data on temperature, precipitation, pressure and other meteorological variables on the 6313 console.
A video showing how the kit works:
https://www.youtube.com/watch?v=gyTwjdCesxgPerhaps in the near future Ecowitt will release a product with higher accuracy, which will be based like Hongyuv on 200Khz transkuders, because there are such inclinations on their part after discussions with me. In my opinion, the user should have a choice. A cheaper and much inferior WS90 Wittboy based on cheap 40Khz transducers and a more expensive one based on 200Khz transducers with higher accuracy and wider measurement range. Several people in Poland are waiting for such an Ecowitt ultrasonic windmeter with 200Khz sensors, because the accuracy of the WS90 Wittboy does not satisfy them. I myself have stations high above the city and the sensor in the wind gauges from Ecowitt measure the wind badly, although the soft from version 1.2.3 to 1.3.8 is a big improvement, but some hardware limitations with 40Khz transducers I can not jump over and here, however, 200Khz transducers are required.