When you connect your Signal K Node server to the Signal K cloud, you can use Alexa get information like wind speed, battery charge, tank levels, etc.
You can set your units preferences by asking Signal K to "Use meters for depth", "User knots for wind speed", or "Use celsius for temperature"
Some of the items you can ask for: * cabin temperature * water temperature * outside temperature * depth below keel * depth below surface * speed over ground