Finding leaks in AC or refrigeration systems just got easier with the Mastercool UV leak detector kit. This rechargeable set includes a powerful UV flashlight, a refillable dye injector, concentrated universal fluorescent dye, dye remover, safety glasses, and even service labels – basically everything you need to pinpoint leaks quickly. Here’s how it works: inject the fluorescent dye into the system, run it for a bit to circulate, then shine the UV light over pipes, fittings, and components. Any leaks will glow brightly, making them easy to spot even in hard-to-see areas. The UV light is rechargeable, so you don’t have to keep buying batteries, and it’s bright enough for use in garages, shops, or outdoors. The dye is compatible with most common refrigerants and oils, and one 2-oz bottle gives you about 25 applications. The included safety glasses enhance UV visibility and protect your eyes. Whether you’re a professional HVAC technician or a DIYer working on a car AC or home refrigerator, this kit saves time and hassle compared to old-school bubble tests. It’s accurate, reusable, and packed in a handy case for storage. Stop guessing where leaks are and start fixing them fast with the Mastercool UV leak locator. A must-have tool for anyone dealing with cooling systems!