The FI/FB/VUL/2/CSB is a low consumption sounder and beacon combined. Designed to be used as an unobtrusive low profile sounder or as a base sounderto be installed in conjunction with a conventional detector. This leads to reduced installation costs and improves the aesthetics of the fire alarm system. Four different tones are available and selected by jumpers. The sound level can be lowered if required using the potentiometer.