Interface with a SinoTech DPU?

I didn’t find anything when I searched but I was wondering if there was any effort to connect to a SinoTech DPU? These DPU’s allow you to connect up multiple sensors and it sends the data to their racing dashboard display’s over Bluetooth. If RealDash could read the Bluetooth data it could be used instead of their expensive LCD display’s.

Here’s one of their models:

The standalone DPU is only $54.

The manufacturer would need to share their Bluetooth protocol in order to read the data. As they are also selling the screens, I doubt that they are eager to share their Bluetooth protocol.