X-Ray Machines: Some businesses need very strong security. Airports and government buildings are examples. X-ray machines help find banned items in bags or personal things.
Breathalyzers: These are used in jobs where safety matters a lot, like mining or construction. Breathalyzers check if workers are safe to do their jobs.
Metal Detectors: These machines are placed at entrances. They find weapons or other banned metal items. You often see them in public places, schools, and secure buildings.