The Esser 807224RR is an integrated acoustic and optical signaling device designed for the esserbus-PLus loop. Part of the IQ8Alarm Plus family, it combines a high-output electronic sounder with a high-intensity LED beacon. The “RR” designation indicates a Red housing with a Red flash (Visual Alarm Device). This device is fully synchronized across the entire loop, ensuring that all sounders and beacons activate in perfect unison to avoid confusion during evacuations. It is loop-powered and software-configurable, allowing for various tones and flash frequencies to be set via the control panel without changing hardware.