Little (or maybe a lot) off topic but an article about iPhones, it may have been version 6, were squawking "too hot" during day time temperatures in Texas, USA last year. Temps were mid 30s°C+ which sort of indicates that the iPads will have a similar temp sensor in them as well. Direct sunlight will cause the little suckers to heat up quite quickly and trip the sensor. Direct sunlight can also be an issue on a CAVU day during winter.
A bracket mount that can shade the device and still locate it in an easy to view position could solve the shut down heat issue. I am surprised there isn't such a bracket specifically for bug smashers of various shapes and sizes.