Photoelectric switch sensor What it is and how it works This photoelectric switch detects object presence by using a light beam that is either blocked or reflected by the test object. Detection is achieved through a synchronization loop gating circuit that senses presence or absence of the object. It can detect any object that reflects light, making it versatile for a wide range of applications. Why you need it Non contact detection reduces wear, maintenance, and contamination risk while providing fast, reliable sensing. Flexible detection method (beam blockage or reflection) allows use with many different object types without physical contact. Builtin features improve uptime and reliability in challenging environments. Key features and performance Delay and timing options for output response to match your process requirements. External synchronization inputs to coordinate with other sensors or control devices for multipoint detection. Anti interference design to maintain stable operation in noisy or reflective environments. reliability with self diagnostic capability to facilitate preventive maintenance and quick issue resolution. Designed to deliver stable performance across varying conditions and settings. Applications and use scenarios Packaging lines: detect presence or position of items on a conveyor to trigger counting, wrapping, or packaging actions. Conveyor systems: monitor item flow for sorting, batching, or downstream process control. Automation interfaces: provide noncontact sensing for doors, gates, or access control points where reliable presence sensing is required.