If you’re wondering about a vacancy switch vs occupancy switch, both types of switches have their uses. The basic difference comes down to whether you want the light to turn on when it senses motion and turn itself off after the last time it senses motion, or only turn itself off after the last time it senses motion.
David Farquhar is a computer security professional, entrepreneur, and author. He started his career as a part-time computer technician in 1994, worked his way up to system administrator by 1997, and has specialized in vulnerability management since 2013. He invests in real estate on the side and his hobbies include O gauge trains, baseball cards, and retro computers and video games. A University of Missouri graduate, he holds CISSP and Security+ certifications. He lives in St. Louis with his family.