Answer by E-mail from Xylem Nick Martin. Who is one of the creators of the rQPOD.
I have searched in the past for a waterproof remote but the only ones that I have found are for radio controlled cars and these are not suitable.
Most of the aeroplane/heli/drone remotes are not waterproof as it is dangerous to fly in the rain as the risk of loosing your model is very high so no one makes one.
We do however provide a cover which helps a lot but its not always practical.