Overview
The Keyence PK-72 is a fixed-distance photoelectric sensor from Keyence’s PK series, engineered for reliable object detection in industrial automation environments. This model has been discontinued by the manufacturer, but is still available through surplus and refurbished channels for maintenance and legacy system support. The PK-72 provides stable detection performance in factory automation, machine vision, and material handling applications.
Key Features
- Fixed-distance photoelectric detection technology
- DC powered operation with cable connector termination
- Designed for industrial factory automation and process control
- Reliable sensor head with analog output
- Shielded construction for harsh environments
- Available as new surplus stock for legacy system support
Technical Specifications
The following specifications are based on the PK series standard configuration:
- Sensor Type: Fixed-Distance Photoelectric
- Power Supply: DC
- Output Type: Analog
- Termination: Cable with Connector
- Contact Form: Single Pole, Single Throw (SPST)
- Construction: Shielded
- Manufacturing Country: Japan
- Model Status: Discontinued
Typical Applications
- Factory automation and production line monitoring
- Machine vision and object detection systems
- Material handling and conveyor systems
- Legacy system maintenance and repairs
- Industrial process control and sensing
- Equipment startup and shutdown interlocks
Compatibility & Replacements
Compatible With
- Keyence control systems and industrial PLC interfaces
- Standard DC power supply systems (10.8–30 VDC typical)
- Analog input modules in industrial controllers
- Factory automation and machine control networks
- Standard industrial mounting and mechanical fixtures
Replaces / Drop-In Replacement For
- Keyence PK-72 original equipment maintenance
- Legacy photoelectric sensor applications in fixed-distance detection
Works With
- Keyence photoelectric sensor controllers and amplifiers
- Standard industrial PLC analog input cards
- DC control relay circuits and solenoid drivers
- Verify compatibility with your system integrator or Keyence technical support before ordering, as this model is discontinued and may require adapter configurations for newer systems.






