The Mastercool R-134a and Hybrid RRR machine can be programmed to complete a continuous recovery/recycle, vacuum and recharge and can be set to run each operation individually. An upgradeable refrigerant capacity database is included with refrigerant capacities for U.S. and import makes and models. The machine performs an auto vacuum leak test, auto oil discharge, auto air purge and service hose flushing. The unit offers high voltage protection, an auto filter alarm, a full-tank alarm and low-refrigerant alarm, automatic oil injection and a thermal printer. The machine is compliant with SAE J2788, according to the company.