A/C Pro UV Leak Detection Kit for Car A/C — Pen Light, Safety Glasses, AAA Batteries

A/C Pro Certified UV Leak Detection Kit is a compact, professional-grade toolset for locating refrigerant leaks in vehicle air conditioning systems using UV dye and a high-intensity pen light.

Whether you're troubleshooting a persistent low-cooling problem or verifying repairs after replacing hoses and O-rings, this kit gives a fast visual method to find refrigerant seepage. The set pairs a bright ultraviolet pen light with yellow-tinted safety glasses and the required AAA batteries so you can inspect lines, fittings and coils without specialized shop equipment. It works with all common UV-detectable dyes, letting you trace where dye-laced refrigerant escapes and stains surrounding components.

How does the UV pen light reveal A/C leaks?

The pen light emits a focused ultraviolet beam that makes UV-reactive dye glow under low ambient light. When dye has circulated through the system and escaped at a leak point, the fluorescence becomes visible as a bright stain on metal, rubber, or nearby surfaces. The pen's intensity helps you scan tight spaces and trace the dye trail back to its origin.

• High-intensity UV output for clear fluorescence detection
• Pointed beam helps inspect fittings, hose connections and evaporator areas
• Battery-powered for portable, field use without cords

What accessories are included and why are they helpful?

The kit arrives ready to use: a UV pen light, yellow safety glasses and AAA batteries are included so you can begin inspections immediately. The glasses filter visible light and enhance the contrast of the fluorescing dye, making even small leaks easier to spot. Batteries preinstalled or included ensure the light reaches proper intensity for reliable detection.

• Yellow-tinted protective glasses to improve contrast and eye comfort
• AAA batteries sized for the pen light for instant operation
• Compact penlight design for maneuvering in engine bays and behind dash panels

How should I use the kit safely and effectively?

First add a compatible UV dye to the A/C system and allow the compressor to circulate the mixture. Work in low-light conditions and wear the provided glasses before scanning suspect components with the pen light. Take care not to stare into the lamp and follow standard safety precautions when working around pressurized refrigerant and moving parts.

• Add dye per manufacturer instructions and run the A/C to circulate it
• Wear the included yellow glasses and avoid direct eye exposure to UV light
• Inspect joints, hose ends, O-rings, condenser and evaporator surfaces for fluorescent traces

Who is this kit designed for? Automotive technicians, DIY mechanics and fleet maintenance staff will find this A/C Pro kit useful for routine diagnostics and post-repair verification. It's aimed at anyone who needs a straightforward, portable method to pinpoint refrigerant leaks without immediate access to shop-grade electronic leak detectors. While effective for visual leak tracing, pair the kit with proper A/C service procedures and certified refrigerant handling practices for repairs.