This sensor features high sensitivity ultraviolet (U.V.) for monitoring gas or oil flames which cycle on and off frequently. It is safeguarded against reverse connection. The Eclipse flame safeguard checks for a short-circuited, or “runaway” scanner at the beginning and end of each flame cycle. The scanner is UL listed, CSA certified and FM approved. It comes with a 183 cm (6 ft.) cable lead. The 90° U.V. Scanner operates with the 6000 Series Multi-Flame and 6500 Series Bi-Flame controllers.