The Mastercool COMMANDER4100 Automatic R-1234yf and Hybrid RRR Machine offers user-friendly navigation via detailed function screens on a 10" color touchscreen command center. The unit quickly recovers 98.5 percent of the refrigerant in a vehicle, exceeding the SAE standards for purity, and has undergone rigorous ETL testing for accuracy. The COMMANDER4100 features automatic and manual procedures, a 6 cfm vacuum pump, a cylinder heater, large analog gauges, a programmable automatic vacuum leak test, and an automatic self-diagnostic check. It includes hose coupler storage, durable wheels with locking casters, a multi-colored LED status bar, and a dust cover. It is made in the U.S.A.