SICK WTT12L-B2541 PowerProx – Long-Range Laser Time-of-Flight Detection
The SICK WTT12L-B2541 PowerProx Time-of-Flight Sensor is engineered for applications that require reliable long-distance object detection in compact industrial setups. It uses a visible red laser and advanced ToF measurement to achieve stable sensing from 100 mm up to 1,800 mm, even when objects vary in colour, surface finish, or shape. Its space-saving rectangular housing and strong background suppression make it ideal for automation tasks where conventional photoelectric sensors struggle. Designed to operate confidently across harsh environments, the sensor offers durable construction, fast switching behaviour, and dependable performance throughout demanding production cycles.
The WTT12L-B2541 PowerProx enhances process stability by delivering repeatable measurements on both high-contrast targets and low-reflective materials such as dark plastics or textured packaging. Its quick response time supports high-speed lines, while dual push-pull outputs allow flexible integration into existing control systems. The sensor’s simple adjustment mechanism reduces commissioning time, and its rugged VISTAL® housing ensures consistent operation despite vibration, temperature shifts, or intensive daily use. With a compact footprint, IP67 protection, and long laser service life, the device helps manufacturers cut maintenance downtime and improve detection accuracy across logistics, robotics, and automated handling workflows.
Why SICK WTT12L-B2541?
The SICK WTT12L-B2541 stands out because it delivers long-range laser precision in an incredibly compact body, giving engineers powerful detection capability without redesigning their machines. It handles dark, shiny, fast-moving, or irregular objects with confidence, making it a versatile “drop-in upgrade” for automation lines that demand sharper accuracy, faster response, and stable performance in every production shift.
What Problem Does It Solve?
The WTT12L-B2541 solves the common challenge of unreliable detection when objects vary in colour, texture, or distance. Traditional sensors often fail with black materials, angled surfaces, or long gaps—but this ToF laser design overcomes all three simultaneously. It brings consistent, repeatable detection to conveyor systems, packaging lines, robotics, and logistics equipment where accuracy directly impacts throughput and quality.
Key Features & Specifications – SICK WTT12L-B2541: Part Number 1072610
| Feature |
Details |
Benefit |
| Operating Principle |
Photoelectric sensor with Time-of-Flight technology |
Delivers highly stable detection regardless of colour, texture, or surface finish |
| Sensing Range |
100 mm to 1,800 mm |
Supports long-distance applications without sacrificing accuracy |
| Maximum Range |
Up to 1,800 mm on varied remission surfaces |
Reliable performance on both dark and bright objects |
| Light Source |
Class 1 visible red laser (658 nm) |
Safe, precise, and easy-to-align detection in industrial environments |
| Light Spot Size |
Ø 12 mm at 1,800 mm |
Small focused beam for pinpoint detection in tight spaces |
| Adjustment Method |
4-turn potentiometer |
Quick setup and fine tuning without complex programming |
| Switching Outputs |
Dual push-pull (PNP/NPN), Q and /Q |
Flexible electrical integration into new or existing systems |
| Switching Mode |
Selectable light/dark switching |
Adapts to multiple application requirements |
| Response Time |
≤ 16.7 ms |
Supports fast-moving production lines with minimal delay |
| Switching Frequency |
30 Hz |
Ensures consistent performance in dynamic environments |
| Housing Material |
VISTAL® high-strength plastic |
Exceptional durability while maintaining low weight |
| Optics Material |
PMMA lens |
Resistant to scratches and optical distortion |
| Protection Class |
IP67 |
Ideal for dusty or moist industrial conditions |
| Connection Type |
M12 5-pin plug |
Industry-standard connector for fast installation |
| Dimensions |
20 × 49.6 × 44.2 mm |
Compact size fits easily into space-limited machinery |
| Weight |
48 g |
Lightweight design reduces stress on mounting brackets |
| Operating Temperature |
–35°C to +50°C |
Works reliably in cold storage, factory floors, and warm production areas |
| Warm-Up Time |
< 15 minutes |
Rapid readiness for critical production tasks |
| Repeatability |
High precision across the entire range |
Stable measurement results reduce false triggers |
| Laser Lifetime |
100,000 hours average |
Long service life minimizes sensor replacement downtime |
Download SICK WTT12L-B2541 (1072610) Datasheet
Commercial Information – SICK WTT12L-B2541 (Article Number 1072610)
| Commercial Data |
Details |
| EAN Number |
4047084355233 |
| Weight |
74 g |
| Country of Origin |
Germany |
The Applications for SICK WTT12L-B2541
1. High-Speed Carton Detection on Automated Packaging Lines
Packaging environments often struggle with objects that vary in colour, shine, or texture, causing inconsistent detection when conveyors run at high speed. The WTT12L-B2541 overcomes this by using Time-of-Flight measurement that remains stable even when cartons are dark, glossy, or irregularly shaped. Its long sensing distance allows flexible mounting positions without constant mechanical adjustments. With a rapid response, it easily keeps up with fast-moving boxes, ensuring correct triggering for labeling, counting, and sorting. This reduces misreads, prevents product backlog, and supports smooth line operation during demanding production schedules.
2. Pallet Presence Verification in Warehouse Logistics
Modern warehouses rely heavily on reliable detection at transfer points and storage lanes where pallets may appear in many conditions—scratched, faded, wrapped, or unevenly loaded. The WTT12L-B2541 provides dependable sensing over long distances, allowing accurate detection even when pallets reflect little light. Its focused laser measurement remains consistent in dusty or low-light areas, helping prevent conveyor stops and routing mistakes. By ensuring pallets are correctly identified before AGVs or shuttles proceed, the sensor minimizes workflow interruptions. This leads to smoother traffic flow, reduced downtime, and stronger overall logistics efficiency in busy distribution environments.
3. Robot Arm Position Feedback for Part Picking Stations
Robotic cells often require a confirmation step before the robot attempts to pick a component. Parts may be dark, reflective, or unevenly shaped, which can cause unreliable readings with standard sensors. The WTT12L-B2541 offers precise feedback thanks to its sharp laser spot and stable detection over varying distances. This allows the robot to verify object presence confidently, reducing missed picks and unnecessary movements. The compact housing integrates well into robotic end-effectors or support frames. As a result, tasks like assembly, sorting, or inspection benefit from fewer cycle errors, improved gripping accuracy, and more predictable robot performance.
4. Large Container Level Detection in Material Handling Systems
In many production processes, bins and containers hold materials that are irregular and low in reflectivity, such as scrap pieces, mixed hardware, textiles, or granulated plastics. The WTT12L-B2541 excels at detecting these uneven surfaces due to its long-range laser capability and immunity to colour variation. Its fast response ensures real-time monitoring for automated refill, discharge, or diverter control. Operators can rely on stable readings even when the material surface shifts unpredictably during loading. This helps prevent overflow, maintains consistent supply to downstream equipment, and reduces manual checks. Over time, this leads to smoother operation and better production continuity.
Related Products & Accessories – Compatible with SICK WTT12L-B2541
| Category |
Model Name |
Part Number |
Benefit / Usage |
| Mounting Bracket |
BEF-WTT12L |
2078538 |
Designed specifically for PowerProx sensors; ensures stable, aligned mounting on machinery and conveyor frames. |
| M12 Male Connector |
STE-1205-G |
6022083 |
Straight M12 5-pin male connector; unshielded version ideal for sensor wiring in general automation. |
| Sensor/Actuator Cable (5 m) |
YF2A15-050VB5XLEAX |
2096240 |
M12 5-pin female connector with flying leads; durable PVC cable for chemical-exposed or standard industrial zones. |
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Warranty – 1-year warranty for your peace of mind.
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