An addressable loop-powered wall beacon, with a high intensity LED and a custom designed free-form optic which produces a highly visible flash. Coverage includes W-2.4-5, 5.5 + 7*2. The unit is designed to fit the YBN-R/3, YBN-R/3(SCI), YBO-BS or the YBO-R/(SCI), and is available in Red or White LEDs.