Robinair, an SPX brand, offers the IR Refrigerant Leak Detector (P/N 22791), a breakthrough hand-held tool designed exclusively to make the automotive technicians job easier, faster, and more efficient when uncovering hard to find refrigerant leaks in A/C systems, according to the company. The 22791 meets the new SAE J2791 standard and, unlike other leak detection methods such as corona discharge and heated diode leak detectors, the Robinair 22791 sensor doesn't touch refrigerant as it passes through the instrument. With its compact design, the 22791 tool fits naturally in the tech's hand and its rugged construction stands up to abuse most other leak detectors can't handle. Eight-hour battery life enables users to work all day before recharging.