Hi if you have a black box with flashing red and green led lights tucked away in a cupboard that would be it I’m not sure if they are a standard fitting but you never know.
It'll be the internet interface for the Truma heating system, making it controllable on-line or with your phone. It may or may not be active on your vehicle. Check with the dealer.
It’s a brilliant feature, we have it in our motorhome. Put a sim card in it and you can communicate with it and tell it to turn your heating/hot water on by bluetooth or text. It will also tell you if your gas runs out or the temp drops too low. I love it
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