- Functional principle: Photoelectric retro-reflective sensor
- Functional principle detail: Without reflector minimum distance (autocollimation/coaxial optics)
- Dimensions (W x H x D): 15.6 mm x 48.5 mm x 42 mm
- Housing design (light emission): Rectangular
- Sensing range max.: 0 m … 4 m 1)
- Sensing range: 0 m … 4 m 1)
- High-precision retro-reflective sensing with autocollimation: Detects objects up to 4 meters away without the need for a reflector, utilizing advanced coaxial optics for reliable performance in various applications.
Free Shipping over $50 For Domestic Shipping
12-Month Warranty
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Over 5,000 parts in stock
- Brand: SICK
Sick 1041390 Photoelectric retro-reflective sensor
Mfr # 1041390
Condition: New
*Some photos may appear used, but your item will be delivered in new, unused condition.
$303.50
/ea
Availability: In stock|Ships in 30 business days
- 100% Original
- Ships from USA; Free Shipping on orders over $50
- Hassle-Free 30-Day Returns
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Images on this website are for illustration and reference purposes only and may differ from the actual product.
- High-precision retro-reflective sensing with autocollimation: Detects objects up to 4 meters away without the need for a reflector, utilizing advanced coaxial optics for reliable performance in various applications.
- Versatile output options with light/dark switching: Offers both PNP and NPN output configurations, providing flexibility to suit different control systems and operational requirements.
- Compact and robust design: Features a small footprint of 15.6 mm x 48.5 mm x 42 mm, housed in a durable plastic enclosure, ensuring reliable operation even in harsh industrial environments.
- Easy integration with M12 connector: Equipped with a 5-pin M12 male connector for straightforward wiring and quick setup, minimizing installation time and complexity.
The SICK WL11G-2B2531 is a high-performance photoelectric sensor designed for modern industrial automation. Part of the W11G-2 series, it provides advanced features for precise object detection across a variety of applications, including packaging, material handling, and quality control processes. Its combination of accuracy, robustness, and flexible connectivity makes it a valuable component in any automated system.
A standout feature of the WL11G-2B2531 is its retro-reflective sensing capability with autocollimation technology, which allows the sensor to detect objects up to 4 meters away without the need for a separate reflector. This simplifies installation, reduces the number of components required, and is particularly useful in environments with limited space. The coaxial optics ensure consistent detection accuracy, even in challenging conditions such as varying surface types or high ambient light.
The sensor offers flexible output options, including both PNP and NPN configurations and light/dark switching modes. This versatility enables it to integrate easily into different control systems and adapt to various operational requirements. Operators can select the output mode that best fits the automation process, ensuring reliable performance across a wide range of applications.
In terms of design and durability, the WL11G-2B2531 features a compact form factor (15.6 mm x 48.5 mm x 42 mm) and is housed in a robust plastic enclosure. This ensures the sensor can withstand harsh industrial environments, including exposure to dust, moisture, or mechanical stress. Its small size also allows it to be installed in tight spaces without compromising functionality.
Integration is straightforward thanks to the 5-pin M12 male connector, which simplifies wiring and accelerates installation. This feature reduces setup time and minimizes the risk of wiring errors, making it easy to incorporate into existing automation systems.
In summary, the SICK WL11G-2B2531 combines high-precision sensing, versatile output options, compact and durable construction, and easy integration, making it a reliable and flexible solution for industrial automation. Its advanced features ensure consistent performance, operational efficiency, and reduced installation complexity, making it a dependable choice for modern automated environments.
| Manufacturer | Sick |
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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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