System Sensor SBBCWL Universal Ceiling Surface Mount Back Box, White-150 AVAILABLE

**150 AVAILABLE FOR IMMEDIATE SHIPPING** Product Overview System Sensor L-Series offers a wide range of Audible Visible (AV) accessories to enable you to meet a variety of application requirements. White, ceiling-mount, compatible with horns, strobe, horn strobes, chimes, chime strobes, speakers and speaker strobes. Main Features L-Series Surface Mount Back Boxes are the best solution in locations where you have a hard surface to mount to.