A photoelectric sensor is an electronic device that detects objects, changes in surface conditions, or other items through a light-transmitting element and a photoelectric receiver. Widely used in industrial automation, packaging, conveyors, and safety systems.
Types Available:
- Diffuse – emitter and receiver in one housing; detects reflected light from the object
- Retro-reflective – uses a reflector to bounce light back to the receiver
- Through-beam – emitter and receiver are separate; detects when the beam is interrupted
- Sensing Distance: Ranges from a few centimetres up to 10 meters (depending on type)
- Light Source: Infrared or red LED
- Output Type: NPN / PNP / Relay (NO/NC options available)
- Power Supply: Typically 10–30V DC or 90–250V AC (model dependent)
- Response Time: Fast switching time, often <1ms
- Indicators: LED for power and detection status
- Housing: Plastic or metal casing with IP65 or higher protection for industrial use
- Mounting: Adjustable brackets or threaded housing for flexible installation
