The Kidde VM-1S is a versatile device designed for various applications within fire alarm systems. Its primary function is to serve as a visual indicator, providing clear signals in the form of flashing lights to indicate alarms or other events detected by the system. The VM-1S is typically installed in areas where auditory alarms might not be sufficient, such as noisy environments or places where occupants may have hearing impairments. Additionally, it can be integrated with other components of the fire alarm system, such as smoke detectors or heat sensors, to provide visual feedback specific to different types of detected hazards. Overall, the VM-1S enhances the effectiveness of fire alarm systems by ensuring that alerts are visible and easily understood by all occupants, regardless of their hearing ability or the surrounding noise levels.