... of R12, R134a, R22, hydrocarbons and air."Blend-ID" analytical software identifies all EPA S.N.A.P. approved blends.Identifies ... , Optional battery pack (Internal)Output: Digital display and LEDs, Optional printer module (Internal)Refrigerant : R12, R134a, R22, HC, and EPA ... to 130°FWarranty: 1 yr. Features:Optional built–in printer for easy customer billingOptional built-in rechargeable power pack and ...