If you’re not fully sure about WTT12L-B2531, taking a closer look at Sick Laser Sensor, Sick Gtb6 P4211 and P&F Photoelectric Sensor often helps compare reliability, cost, and availability.
Sick WTT12L-B2531 Photoelectric Sensor
The Sick WTT12L-B2531 Photoelectric Sensor provides a sensing range of one hundred to two thousand five hundred millimeters using red laser light. This model operates on 10–30 V DC with a push-pull PNP/NPN output, includes background suppression, and offers a ≤ 0.5 ms response time. It features a 658 nm laser source, IP67 enclosure, and a rectangular housing measuring 20 mm × 49.6 mm × 44.2 mm with an M12 connector. Explore Sick Sensors, view Sick Photoelectric Sensors, and check the Sick WTT Series for related options.
| Brand | Sick |
| Product Type | Photoelectric Sensors |
| Model Number | WTT12L-B2531 |
Sick WTT12L-B2531 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric proximity sensor |
| Functional principle detail | Background suppression, Optical time-of-flight |
| Dimensions (W x H x D) | 20 mm x 49.6 mm x 44.2 mm |
| Housing design (light emission) | Rectangular |
| Sensing range max. | 50 mm ... 2,500 mm |
| Sensing range | 100 mm ... 2,500 mm |
| Type of Light | Visible red light |
| Light source | Laser 3) |
| Light spot size (distance) | Ø 14 mm (2,500 mm) |
| Wave length | 658 nm |
| Laser class | 1 (IEC 60825-1 / CDRH 21 CFR 1040.10 & 1040.1 |
| Adjustment | Potentiometer, 4 turns (1 x) |
| Supply voltage UB | 10 V DC ... 30 V DC |
| Ripple | < 5 Vpp |
| Current consumption | 70 mA 3) |
| Switching output | Push-pull: PNP/NPN |
| Switching mode | Light/dark switching |
| Output current Imax. | ≤ 100 mA |
| Response time | ≤ 0.5 ms |
| Switching frequency | 1,000 Hz 6) |
| Connection type | Male connector M12, 5-pin |
| Protection class | III |
| Housing material | Plastic, VISTAL® |
| Optics material | Plastic, PMMA |
| Enclosure rating | IP67 |
| Ambient operating temperature | –35 °C ... +50 °C 10) |
| Ambient temperature, storage | –40 °C ... +70 °C |
| Weight | 48 g |
The Sick WTT12L-B2531 Photoelectric Sensor is a compact red-light sensing device designed for accurate detection in industrial automation. The Sick WTT12L-B2531 supports a sensing range of 100–2,500 mm, operates on 10–30 V DC, and delivers a push-pull PNP/NPN output with light/dark switching. As part of the Sick WTT series, it uses an optical time-of-flight method with background suppression, housed in a durable IP67-rated rectangular body suitable for machinery environments.
This sensor is applied in conveyor alignment, packaging lines, sorting systems, and assembly automation where consistent long-distance detection is required. The visible red laser offers stable performance even at maximum range, while the compact housing ensures easy integration into restricted mounting spaces. Its fast switching frequency and reliable output make it suitable for repetitive, high-speed industrial tasks.
The Sick WTT12L-B2531 Photoelectric Sensor combines long-range capability, fast response, and dependable electrical performance for automated equipment. With features such as background suppression, a 658 nm laser source, IP67 protection, and push-pull switching, it provides engineers with a reliable sensing option for demanding operations. Sick’s build quality makes this model a trusted choice for factories requiring stable detection across varied industrial conditions.
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