The Robinair A/C leak detection unit, No. 16235, offers users a way to find very small A/C system leaks. When time is of the essence, dye can be placed into the A/C system and the customer can return at a later date. Technicians can then pinpoint the dye using the UV light eliminating wasted time as technicians spend hours trying to search for phantom leaks. According to the company, this product is easy to use, allowing technicians to save time searching for the leak.