In what format does the GPS Component return speed in?

ESPHome
1

Does it return in km/h or mph? I am using it for a km/h display.

2

Standard NMEA messages report speed in either km/h or knots. We would need to see the serial log to determine which one it is.

https://receiverhelp.trimble.com/r750-gnss/NMEA-0183messages_VTG.html

3

I do not have a GPS module yet. Any recommendations?