The Hochiki SLR-E3N is a Photoelectric Smoke Detector. The unit is fully compatible with the majority of existing Conventional Systems. By using Hochiki's unique High Performance photoelectric smoke chamber, the need to use ionisation is removed. A third integral terminal provides a remote indicator output. The unit utilizes a unique baffle design allowing smoke to enter the chamber while keeping out ambient light. The smoke chamber is also easy to remove and replace for cleaning.