- Functional principle: Photoelectric proximity sensor
- Functional principle detail: Background suppression
- Sensing range max.: 20 mm … 50 mm 1)
- Light source: Laser 2)
- Type of light: Visible red light
- Light spot size (distance): Ø 0.1 mm (45 mm)
- Laser background-suppression detection with visible red beam: Uses a focused Class 1 red laser for precise object recognition within a sensing range of 30 mm to 200 mm, ideal for detecting small or fast-moving items.
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Over 5,000 parts in stock
- Brand: SICK
Sick 1017959 Photoelectric proximity sensor
Mfr # 1017959
Condition: New
*Some photos may appear used, but your item will be delivered in new, unused condition.
$946.26
/ea
Availability: In stock|Ships in 30 business days
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- Laser background-suppression detection with visible red beam: Uses a focused Class 1 red laser for precise object recognition within a sensing range of 30 mm to 200 mm, ideal for detecting small or fast-moving items.
- Flexible switching output with PNP light-ON/dark-ON capability: Provides a PNP transistor output configurable for either light-ON or dark-ON operation, ensuring compatibility with a wide variety of control systems.
- Compact and rugged IP67 housing with M12 connector: Slim rectangular design with a durable housing rated to IP67 ensures long service life, and the M12, 4-pin connector simplifies integration and replacement.
- Fast response time with high switching frequency: Operates with a response time of ≤ 200 µs and a switching frequency up to 2,500 Hz, delivering reliable detection in high-speed automation applications.
The SICK WT12L-2B510 is a precision laser photoelectric proximity sensor designed to provide accurate and reliable detection in challenging industrial environments. Compact, fast, and rugged, this sensor is part of SICK’s proven WT12L-2 family, delivering reliable background-suppression capabilities in applications where precision and durability are equally important.
At its core, the WT12L-2B510 employs a visible red Class 1 laser light source that allows highly accurate detection of objects within a working range of 30 mm to 200 mm. The background suppression feature ensures that the sensor can differentiate between target objects and surrounding surfaces, minimizing false switching and making it suitable for environments with reflective or cluttered backgrounds. Its sharply focused laser spot also enables detection of very small parts or precise positioning tasks.
Output flexibility makes the sensor simple to integrate into a wide variety of systems. The WT12L-2B510 is equipped with a PNP transistor output that can be configured for light-ON or dark-ON switching. This adaptability allows engineers and integrators to match sensor behavior to their specific application requirements, ensuring smooth compatibility with existing PLCs and control architectures.
The sensor is built for reliability in industrial use. Its robust rectangular housing is rated to IP67, providing protection against dust and water ingress. This makes it well suited for demanding environments such as packaging, logistics, robotics, and assembly lines. Combined with a compact form factor, the sensor can be installed easily in tight spaces while still delivering reliable detection performance. A standardized M12, 4-pin male connector provides secure wiring and easy replacement during maintenance.
Performance is another area where the WT12L-2B510 excels. With a response time of 200 microseconds or less and a switching frequency of up to 2,500 Hz, it can detect rapidly moving objects without missing events. This high-speed capability makes it ideal for applications like fast conveyor systems, small-part detection, or quality inspection in automated production.
For user convenience, the WT12L-2B510 includes a simple adjustment mechanism for fine-tuning the detection threshold, allowing operators to adapt the sensor to different object sizes, materials, and reflectivity conditions. This ensures reliable operation across diverse tasks without the need for extensive reconfiguration.
In summary, the SICK WT12L-2B510 combines laser precision, high-speed response, rugged housing, and versatile output options into a compact package. It is an excellent solution for industries that demand reliable detection of small or fast-moving objects, ensuring both productivity and accuracy in automation systems.
| 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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