Technical What is this.

[Dermo14]

Hi folks,

Just got a motorhome, can anyone tell me what this is? I was think an alarm maybe?
Works off 12v

Thanks

 

[HughJampton]

I suspect it's a gas level gauge. (Reserve thru full). (Though AEB make other level gauges, so could be water or waste, though the latter is unlikely to go reserve to full)

Edited to add:

https://www.aeb.it/en/product/aeb561n-sensors-indicators/