SpectrAlert® Advance chimes feature rotary switches to select chime tone and volume settings, 12- or 24-volt operation, and they’re compatible with the System Sensor synchronization protocol. The chime is intended for private mode application, per UL464. The strobe is listed to UL1971.
The SpectrAlert Advance CHR is a red chime for ceiling or wall installation.
The SpectrAlert Advance CHW is a white chime for ceiling or wall installation.