System Sensor’s SSM Series alarm bells are low-current, high-decibel notification appliances for use in fire and burglary systems or other signaling applications.
L-Series, red, wall-mountable, clear lens, 2-wire, compact footprint that fits in a single gang box, strobe marked "FIRE". Selectable strobe settings: 15, 30, 75, 95, 110, 135, and 185 cd.