Complex sentence: The Guide goes on to highlight key transitions that affected the fire alarm industry such as smoke detectors beginning in 1960, visible signaling in the 1980's, and adoption of microprocessor and software technology.
Split into simpler sentences: The Guide goes on to highlight key transitions that affected the fire alarm industry. There were key industry-wide technology shifts such as smoke detectors beginning in 1960, visible signaling in the 1980's, and adoption of microprocessor and software technology.