The AC1234-6 was the first commercially available machine to fully meet the SAE's requirement for recovering, recycling and recharging vehicle A/C systems that use the new R1234YF refrigerant. The AC1234-6 is a fully automatic AC machine that comes with an integrated refrigerant identifier that samples the refrigerant in the vehicle's A/C system prior to recovery, is a highly accurate and reliable machine, and can service both standard and hybrid vehicle A/C systems.