The new Robinair 34988NI Premium A/C Machine combines ease of use and superior accuracy. It recovers, recycles, evacuates, leak tests and recharges R-134a vehicle systems quickly and accurately. The fully automatic function will recover, vacuum, leak test and charge on its own without the need to stand and monitor the machine. The product is fully SAE J2788 compliant and exceeds the requirements for charge accuracy and recovery efficiency. Robinair’s patented automatic refrigerant refill feature maintains a user-selectable amount of refrigerant in the internal vessel and signals when it’s time to change supply tank, no monitoring required. The 34988NI will automatically add oil if necessary using load cells that measure the amount of oil removed from the system and automatically putting the right amount of A/C lubricant back into the system, make the 34988NI the only true fully automatic machine available today.