I chose non - flow thru and have found them very adequate.
With the range of Low-High limits set, I found that I rarely need to add any air.
A caveat - I found that the temperature of the tire TREAD is significantly HIGHER than what the sensor reads. Of course the sensor can only measure temperature of the AIR, not the actual tire. My display was showing about 95 degrees, while the tread temp was more like 135!