The Omron EE-SX672A is a through-beam optical slot sensor in a chassis-mount package. It runs on a fixed 5 V supply rail and switches an NPN open-collector output — meaning the load connects between the collector and the positive rail, and the sensor sinks current when the beam is interrupted. The slot gap is 5 mm, sized for flag, tab, or edge detection in copiers, printers, packaging machinery, and light industrial automation where the target passes through a narrow gap.
1 ms response — mechanical flag speed, not high-speed counting
Response time is 1 ms. That handles paper edges, mechanical flags, and slow-moving targets.
Temperature range — indoor cabinet, not outdoor or hot zone
Rated for -25°C to 55°C ambient. That covers most indoor factory and office equipment, but not outdoor enclosures in direct sun or near ovens. Keep it inside the control cabinet.