Thanks John
I decided on an £80 cheap and cheerful geiger from ebay last night – it won’t be very accurate but it can click away as it detects gamma and I should get some warning if there’s a sudden fallout event.
I can get out of the hot rain or air then.
No good for testing water or food though, but I will be able to know when clean rain washes things down again afterwards. (in theory).
If USA/China have just a limited exchange we probably won’t even hear about it in the UK til the fallout is here.
I doubt They’ll go full scale nuclear winter – just a few problematic cities cleansed and a couple of years of extra dose for us lab rats, while They hunker in Their bunkers.