The Robinair 34788NI A/C machine recovers, recycles, evacuates, leak-tests and recharges R-134a with improved 98.5 percent efficiency. The improved enclosure allows for tighter packaging of all interior components to reduce the machine’s footprint in the shop. Additionally, the new design features a larger graphical display, more memory and automatic features such as leak testing, automatic refrigerant refill and oil drain/inject – putting A/C lubricant back in the system, saving time. The 34788NI-H model performs all of the above functions for high-voltage systems found on hybrid and electric vehicles.