Yes indeed, I'm using this TX on purpose though since I anything above 25mw is strictly illegal in Spain and I don't even own the license for anything under that. However, the next version will feature a more powerful chip similar to the c1011, If you watched the video I'm currently using a cheap SDR radio to actually receive the signal.
I will most likely need help, there's a lot of stuff to do and a lot that can go wrong haha! I'll keep you updated but don't expect major updates until end of may since I'm currently working on other stuff and exam season is arriving, Next step, however, is PCB optimisation (try and make it smaller and neater), increase radio power, work on the code and maybe even add a couple more sensors.
Thank you all for the help and support though! really appreciated.