Here's a picture of the Sensor installed on the lowest yagi on my rotating tower. In this case a 6m yagi at about 43'. Its a balun designs (balundesign.com) balun mount. I attached the sensor with two small self tapping screws. It's offset from the center of the boom to allow for the cat5 cable to exit via the included cable gland.
Total distance from the Sensor to the RG is over 260'. Works like a champ.
Rich - N5ZC