PS my radarbox goes hand baggage, but that is more to do with the value and possibility of bag loss. If you are putting it in the hold, you will need to check your travel insurance will cover the single item cost for replacement if your bag gets lost.
I once had a proffesional camera (EOS-1) and lenses stolen from a camera bag by baggage handlers. The check in desk made me put as checked baggage as they said it was too large for hand baggage. When the bag came on the carousel the other end, it was completely empty. Value was circa £1,400. I only got £500 back from insurance.