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Allen-Bradley 42EF-R2MPB-F4 RightSight Photoelectric Sensor for industrial automation sensing

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Allen-Bradley 42EF-R2MPB-F4

by Allen-Bradley

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OverviewThe Allen-Bradley 42EF-R2MPB-F4 RightSight Photosensor is crafted for outstanding performance within demanding industrial settings. It delivers precise and dependable object detection, which is vital for modern automation and control systems. This 18mm cylindrical sensor functions as a highly effective transmitted beam receiver, capable of identifying a visible red light beam over impressive distances up to 20,000mm (20 meters). Engineered for simple incorporation, it features a PNP DC complementary LO/DO output and a practical 4-pin Micro QD connector on a pigtail, ensuring rapid response times and straightforward installation. Perfect for uses requiring strong and accurate sensing, the 42EF-R2MPB-F4 stands out due to its dependability and advanced features.Key Features High-Precision Transmitted Beam Receiver: Guarantees outstanding accuracy and consistent detection across long distances, reducing incorrect readings. Extended 20,000mm (20m) Sensing Range: Provides broad coverage, making it suitable for extensive industrial applications and conveyor systems. Visible Red Light Source: Offers clear and consistent beam identification, simplifying alignment and setup. Durable 18mm Cylindrical Housing: Built for industrial durability with front through-hole mounting for adaptable and secure installation. PNP DC Complementary LO/DO Output: Ensures wide compatibility with various industrial automation control systems, facilitating simple integration. Fast 4-Pin Micro QD on Pigtail: Enables quick, secure, and tool-free electrical connections, minimizing downtime. Optimized for Industrial Automation: Developed to endure harsh conditions, providing consistent operation in vital applications. Technical Specifications Model: 42EF-R2MPB-F4 Series: RightSight Photosensor Housing Diameter: 18mm Cylindrical Sensing Type: Transmitted Beam Receiver Sensing Range: 20,000mm (20m) Light Source: Visible Red Output Type: PNP DC Complementary LO/DO Sensitivity Adjustment: Not Adjustable Connector Type: 4-Pin Micro QD on Pigtail Applications Conveyor and Material Handling Systems: Ensures accurate tracking and placement of items on production lines. Industrial Automation and Machine Control: Provides essential feedback for robotic systems and automated machinery. Packaging and Process Monitoring: Oversees product flow and integrity in rapid packaging operations. Object Detection in Manufacturing Environments: Reliably identifies the presence or absence of components during assembly and quality control. Logistics and Warehousing: Ideal for automated retrieval and storage systems. Automotive Manufacturing: Used for component authentication and assembly line management. Why ChooseThe 42EF-R2MPB-F4 delivers exceptional long-range detection accuracy, making it essential for critical industrial applications where reliability is paramount. Crafted by Allen-Bradley, a leader in industrial automation, this sensor is built for endurance and consistent operation in the most challenging environments. With its PNP output and Micro QD connector, setup and integration into existing control systems are fast and straightforward, reducing installation costs and downtime. By offering reliable and rapid object detection, this photosensor aids in optimizing production processes, minimizing errors, and boosting overall operational efficiency. The 18mm cylindrical housing with front through-hole mounting provides flexibility in installation, allowing for optimal positioning in various applications. Benefit from Allen-Bradley's reputation for high-quality industrial components, ensuring a long product lifespan and dependable service.Order NowUpgrade your industrial automation processes with the superior performance of the Allen-Bradley 42EF-R2MPB-F4 RightSight Photosensor.FAQQ: What is the primary function of the Allen-Bradley 42EF-R2MPB-F4?A: It is a photoelectric sensor designed for precise and reliable object detection in industrial automation and machine control systems.Q: What is the maximum sensing range of this device?A: The sensor offers an extended sensing range of up to 20,000mm (20 meters).Q: What type of light source does it use?A: It utilizes a visible red light source for clear and consistent beam detection.Q: Is the sensitivity adjustable on this model?A: No, the sensitivity for this model is not adjustable.Q: What kind of output and connector does it have?A: It features a PNP DC complementary LO/DO output and a 4-pin Micro QD connector on a pigtail for easy integration.

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PRODUCT DETAILS

Allen-Bradley 42EF-R2MPB-F4

Overview

This is a genuine Allen-Bradley component. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Allen-Bradley catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Allen-Bradley automation ecosystem

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Allen-Bradley equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Allen-Bradley platform with documented conversion notes

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Model: 42EF-R2MPB-F4
  • Series: RightSight Photosensor
  • Housing Diameter: 18mm Cylindrical
  • Sensing Type: Transmitted Beam Receiver
  • Sensing Range: 20,000mm (20m)
  • Light Source: Visible Red
  • Output Type: PNP DC Complementary LO/DO
  • Sensitivity Adjustment: Not Adjustable
  • Connector Type: 4-Pin Micro QD on Pigtail

Applications

  • Conveyor and Material Handling Systems: Ensures accurate tracking and placement of items on production lines.
  • Industrial Automation and Machine Control: Provides essential feedback for robotic systems and automated machinery.
  • Packaging and Process Monitoring: Oversees product flow and integrity in rapid packaging operations.
  • Object Detection in Manufacturing Environments: Reliably identifies the presence or absence of components during assembly and quality control.
  • Logistics and Warehousing: Ideal for automated retrieval and storage systems.
  • Automotive Manufacturing: Used for component authentication and assembly line management.

Why Choose the 42EF-R2MPB-F4?

The 42EF-R2MPB-F4 delivers exceptional long-range detection accuracy, making it essential for critical industrial applications where reliability is paramount. Crafted by Allen-Bradley, a leader in industrial automation, this sensor is built for endurance and consistent operation in the most challenging environments. With its PNP output and Micro QD connector, setup and integration into existing control systems are fast and straightforward, reducing installation costs and downtime. By offering reliable and rapid object detection, this photosensor aids in optimizing production processes, minimizing errors, and boosting overall operational efficiency. The 18mm cylindrical housing with front through-hole mounting provides flexibility in installation, allowing for optimal positioning in various applications. Benefit from Allen-Bradley's reputation for high-quality industrial components, ensuring a long product lifespan and dependable service.

Availability & Shipping

  • In stock: 42EF-R2MPB-F4 ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every 42EF-R2MPB-F4 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

A: It is a photoelectric sensor designed for precise and reliable object detection in industrial automation and machine control systems.

Machine down? We ship parts the same day.

New, surplus, and refurbished Allen-Bradley inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

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PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.

Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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