Here are the test pictures.
The first one is in daylight. That little lemon tree in the center of the picture is 30 ft. from the camera. The camera did not have enough downward tilt totrigger reliably and was looking too far away. I shortened the two front legs of the tripod by six inches before setting it up for a night picture. The second picture (night) triggered perfectly on my 40 pound dog.It seems to me the flash is more efficient in the look-down position than it is on a horizontal shot.