What is this for?
When using in a caravan, at times the Satking decoder may have to be installed in a cupboard. If the cupboard door is kept closed, or the cupboard doors are left open when the decoder is in use, the infra red signal from the remote control to the SatKing decoder may be blocked. This problem is solved by plugging in the sensor plug to the back of the decoder and running the sensor cable outside of the cupboard and sticking the sensor eye onto the exterior of the cupboard. Now the remote control can be pointed at the sensor and the decoder will change channels/volume and all operations.