The Matco Tools AC788 Automatic R-134a RRR Machine is design certified for compliance with SAE J2788 for the recovery, recycling and recharging of R-134a refrigerant. This machine can be programmed to complete a continuous recovery and recycle, vacuum and recharge or it can also be set to run each operation individually. It includes a refrigerant capacity database of over 1,000 vehicles from 1995 to 2012, which is also capable of database upgrades. Other features of the AC788 include: automatic vacuum testing, automatic oil discharge, automatic air purge, automatic filter alarm, a low- and full-tank alarm and automatic oil injection, and it features a thermal printer, compact design, a large graphic display measuring 4.3" width by 2.4" height and a two-year warranty.