The Tracerline TPOPUV16 Complete A/C and Fluid Dye UV Leak Detection Kit provides professional automotive technicians with an all-in-one diagnostic solution for vehicle air conditioning, engine coolant, and oil systems. Engineered for fast inspection accuracy, this comprehensive kit combines OEM-grade universal fluorescent dyes safe for standard automotive fluids with a high-intensity ultraviolet LED flashlight to quickly pinpoint hidden leaks. Multi-System Compatibility: Includes universal UV dyes safe for R-134a and R-1234yf refrigerants, engine coolants, and circulating lubricating oils without altering vehicle fluid performance. Precision Injector Assembly: Features an EZ-Shot caulking gun-style injector, flexible hose, and adapters for controlled, mess-free dye injection across various service bay applications. High-Visibility UV Flashlight: Equips mechanics with an OPTI-PRO cordless violet light LED inspection torch that causes leak sites to glow brightly for immediate visual confirmation.