To connect the DJI RC-PRO to the TRIPLTEK 9 as a monitor. You will need an HDMI input Video capture.
You can get one one like this here
You will also need to install a APP on your TRIPLTEK 9 . We recommend you to install this nExt Camera – USB , you can find it at the Google Play Store or on this link: https://play.google.com/store/apps/details?id=pl.nextcamera&gl=ES
Take a look at this video: