You may want to look at a "ruggedised" Arduino
They can be had from here
I asked a similar question about my MKR1000 but have not yet received a response as it seems to go flakey at around minus 4 degrees C'
You may want to look at a "ruggedised" Arduino
They can be had from here
I asked a similar question about my MKR1000 but have not yet received a response as it seems to go flakey at around minus 4 degrees C'