Just about to buy a natural gas/carbon monoxide alarm & wondered what people's preference was with regards to 12v or 240v. Obviously don't want it to drain the battery.
Neither. Get a battery powered one. Mine was £13 in ALDI. Batteries last a very long time and you can mount it where you like then too. Takes 3 x AA batts.
It also means when its not used in the camper, you can use it indoors.
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