The RAPTAIR-MF utilizes VMAC’s advanced compressor control system that is smart enough to turn the engine off when you’re not using air, and automatically turn the engine back on when you use air again.This totally self-contained unit also provides an AC generator, welder, booster, battery charger and hydraulic capability through an integrated SAE ‘A’ PTO Port. The ultimate “utility belt”, this multifunction system will make you a job site superhero!