- Functional principle: Photoelectric retro-reflective sensor
- Functional principle detail: With minimum distance to reflector (dual lens system)
- Dimensions (W x H x D): 27 mm x 87.5 mm x 65 mm
- Housing design (light emission): Rectangular
- Sensing range max.: 0 m … 22 m 1)
- Sensing range: 0 m … 15 m 1)
- Retro-reflective sensing with visible red LED: Detects objects from 0.1 m up to 8 m using a reflector, ensuring stable and accurate detection across different surfaces
Free Shipping over $50 For Domestic Shipping
12-Month Warranty
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Over 5,000 parts in stock
- Brand: SICK
Sick 1017879 Photoelectric retro-reflective sensor
Mfr # 1017879
Condition: New
*Some photos may appear used, but your item will be delivered in new, unused condition.
$381.74
/ea
Availability: In stock|Ships in 30 business days
- 100% Original
- Ships from USA; Free Shipping on orders over $50
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- Retro-reflective sensing with visible red LED: Detects objects from 0.1 m up to 8 m using a reflector, ensuring stable and accurate detection across different surfaces
- Fast response with dependable switching output: Short reaction times provide precise detection for dynamic or high-speed industrial processes
- Easy alignment and adjustment: Visible red light spot and simple adjustment controls enable quick installation, fine-tuning, and consistent operation
- Rugged IP67-rated housing: Durable enclosure protects against dust, moisture, and harsh conditions, ensuring reliable long-term performance
The SICK WL24-2B440 (Part No. 1017879) is a high-performance retro-reflective photoelectric sensor designed for accurate and reliable object detection in industrial automation. With its visible red LED emitter, the sensor provides a detection range from 0.1 m up to 8 m when paired with a suitable reflector. This medium-to-long range capability makes it an excellent choice for applications in packaging, logistics, conveyor monitoring, pallet detection, and general presence detection tasks.
The WL24-2B440 operates on the retro-reflective sensing principle, where emitted light is reflected back from a reflector and interrupted when an object passes in between. This method ensures stable performance, even when dealing with varying object shapes, surface finishes, or reflective properties. Whether detecting glossy materials, irregular objects, or high-speed items on a conveyor, the WL24-2B440 delivers consistent and accurate detection results.
One of the defining features of this sensor is its fast response and dependable switching behavior. With short reaction times, it ensures reliable detection in high-speed industrial processes where precision and timing are critical. This responsiveness helps reduce false detections, minimizes downtime, and supports continuous, efficient production in dynamic environments.
Ease of installation and configuration is another core strength. The WL24-2B440 features a visible red light spot that simplifies alignment with both the reflector and the target object, reducing setup time and ensuring precise operation. Additionally, user-friendly adjustment controls allow operators to fine-tune sensitivity and detection range quickly, making the sensor adaptable to various industrial requirements. This flexibility is especially valuable in environments with frequent product or process changes.
Durability is built into the WL24-2B440. Its rugged IP67-rated housing provides strong protection against dust, moisture, and water spray, ensuring stable performance even in harsh environments. This robust construction reduces maintenance needs, extends service life, and delivers consistent results in challenging industrial settings. Compact housing dimensions also support installation in space-limited areas, increasing deployment flexibility.
The sensor integrates seamlessly into automation systems with its PNP output interface, which ensures compatibility with programmable logic controllers (PLCs) and other control devices. This straightforward integration enhances process reliability and communication across industrial systems.
In summary, the SICK WL24-2B440 combines retro-reflective detection, fast response, easy setup, and rugged durability into a reliable and efficient sensing solution. With an 8 m detection range, user-friendly configuration, and robust housing, it is well-suited for applications in logistics, packaging, conveyor systems, and manufacturing environments. By ensuring precise detection, long-lasting durability, and ease of integration, the WL24-2B440 helps manufacturers maintain productivity, reduce downtime, and achieve consistent quality in modern automated operations.
| Manufacturer | Sick |
|---|
FAQ
What is your warranty policy?
All new products purchased from Enicstra LLC are backed by a 12-month warranty. We will repair any covered issue at no cost. If a repair is not possible, we will provide a full refund. For warranty support, please email customerservice@enicstra.com.
What happens if an item has a lead time longer than two weeks?
If an item requires a lead time of more than two weeks, we will notify you immediately. Your order will only be confirmed once you acknowledge and approve the lead time.
What is your returns policy?

If you are dissatisfied with the part(s) you received for any reason (subject to our Terms and Conditions), you may take advantage of our 30-day return-to-base policy, which allows you to request an exchange or a full refund.
Do you offer global delivery?

Yes, we offer reliable worldwide shipping. Our efficient logistics network allows us to process and ship orders to customers across the globe with ease and precision.
Please note: All international orders may be subject to customs duties, taxes, and import fees, which are the responsibility of the recipient. Enicstra does not collect or cover these charges.
How will the orders be shipped?

Enicstra partners with trusted carriers including USPS, UPS, FedEx, and DHL to ensure safe and timely delivery of every order.
We offer free domestic shipping on orders over $50. For international orders, additional shipping costs will apply based on the destination and selected carrier service.
Who can I contact if something goes wrong?

If you have any questions or encounter any issues with your order, please reach out to our Customer Support Team at customerservice@enicstra.com. We’re here to help and will respond as promptly as possible.
How can I cancel my order?

If you wish to cancel your order, please contact us at customerservice@enicstra.com as soon as possible. All cancellation requests are subject to approval by Enicstra LLC and must comply with our Terms and Conditions.
Do you offer discounts for bulk orders?
Yes, we offer special pricing for bulk purchases. If you’re interested in ordering in large quantities, please contact us at sales@enicstra.com to discuss volume discounts and customized quotes.
What payment options and currencies do you accept?
We aim to make your purchase seamless by offering multiple payment options, including bank transfers, PayPal, and major credit and debit cards such as Visa, MasterCard, and American Express. We accept payments in most major global currencies, although we prefer US Dollars (USD) transactions. Payments in other currencies may incur additional charges.

How long is my quote valid?

Our quotes are valid for 30 days from the date they are issued unless otherwise specified at the time of quotation.

Do you offer trade credit agreements?

Yes, we understand the importance of trade credit in business operations and provide credit agreements upon request, subject to eligibility. For more information, please contact our team.

Do you accept sales tax exemption certificates?
Yes. If your organization is tax‑exempt (e.g., reseller, nonprofit, government, educational), please email a copy of your valid exemption certificate to customerservice@enicstra.com.
Our team will review and apply the exemption to your account/orders. To avoid being charged tax, please send the certificate before placing your order (or we can refund the tax after verification if the order has already been placed).

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