Overseas gas attack security

niglep
niglep Forum Participant Posts: 4

We travel to the South of France each year with our caravan and to save time we prefer to stay in a motorway service staion lorry park area overnight on our trip down as we feel this is safer than an ordinary aire.We have a dog but would like a gas sensor
for added security if such a thing exists? Does anyone have any ideas on this please or indeed on security generally?