A compensator was used to equalize the vehicle's side pressures, which it did excellently. The digital gauge was compared to another gauge and found to be just as accurate. Had a short simple task of adjusting tire pressure on each axle. I wish there was a 4 tire version so I could raise (or lower) all 4 at the same time and know for sure that the pressure in all the tires would be the same. You can just take another set and create a system that combines these two. An indispensable thing for off-road and / or landing. Compact and light weight but not rated for operating pressures over 100psi (if I remember correctly).