ECOWITT WS3900 - Others; Lightning Distance Unit

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Figure 48
5. Others
5.1 Lightning Distance Unit
WS3900/WS3910 can connect WH57 lightning sensor, and the lightning
data can only be viewed through Ecowitt App, website, and web page, if
you need to modify the lightning distance unit, you can modify it by
modifying the wind speed unit on App, website or web page.
We here recommend modifying units on the App, the lightning units will
be used in daily viewing and exporting data on the website.
Wind Speed Unit
Lightning Distance Unit
m/s, km/h, BFT
km
Knots
nmi
mph, fpm (fpm can only be set
in App/website)
mi
Table 9: Corresponding table of wind speed and lightning distance units