StackLight™ LED, 102-series is a unique audible-visual signalling device that may contain up to five light modules and a pulsating horn in a single, integrated stack. The triliptical diffusion optic lens allows viewing from close up while still projecting the light through use of a built-in projection ring. The lens modules are available with LED. Options for steady-on or flashing are available. The 102-series offers a shorter base for panel or conduit mounting as well as a taller base, designed for use with a sounder module.