Hey there, heavy haulers. Today, we're going to be taking a look at Air Lift's SmartAir II Automatic Leveling compressor system. These are available in either a single sensor kit or a dual sensor kit. The difference being is the single sensor is designed for load leveling front to back, but not side to side, where the dual sensor kit is for front, back, and side to side.I've taken the vehicle… see more >