Bosch FNM-420-A-BS-WH Analog Addressable Base Sounder, White, Without Cover

The white base sounder seats beneath the detector in the LSN loop, bringing audible indication to the detection point. Supplied without a cover, it is designed for use with a detector mounted on top. The device, drawing a maximum of 3.85 mA, is configured from 32 tones including DIN tone and synchronizes instantly with adjacent sounders. Its white color meets architectural expectations by preventing the device from visually standing out on light-colored ceilings.