@Rickey , I have some questions, I hope you can help answer them:
1) what is the reason the 4 core cable between the shunt and main unit cannot be extended longer than the supplied 175mm cable length? This is really inconvenient in a real world installation environment where in many cases a location suitable for the main unit directly next to the shunt may not be available due to other pre-existing cabling and devices being in the same area.
2) Is the Bluetooth access point on KH160F within the main unit or the display unit?
3) Can more than one display be connected to a single main unit?