Quickly and accurately LOCALISES refrigerant gas leaks in air conditioning and refrigeration systems, including vehicle A/C systems COMPATIBLE with all refrigeration lubricants, refrigerant gases such as CFC, HFC, HCFC, HFO, R12, R134a, R1234yf, R407c, and R22, and electric compressors VISIBLE when exposed to any UV lamp. Dye detection labels included SAFE for air conditioning and refrigeration systems and recovery machines; DOES NOT CONTAIN SOLVENTS SAE J2297 and SAE J2298 compliant 100% Made in Italy formulation and production