Sick WLA26P-24162100A00 Photoelectric Sensor
The Sick WLA26P-24162100A00 retro-reflective photoelectric sensor supports 0–18 m sensing distance using PinPoint LED technology for industrial automation applications. This Sick Photoelectric Sensor from the W26 and W16 series operates with visible red light at 635 nm, supports 10–30 V DC supply, offers PNP/NPN complementary outputs, M12 4-pin connection, 1,000 Hz switching frequency, and IP66/IP67/IP69 enclosure.
| Brand | Sick |
| Product Type | Photoelectric Sensor |
| Model Number | WLA26P-24162100A00 |
Sick WLA26P-24162100A00 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric retro-reflective sensor |
| Functional principle detail | Autocollimation |
| Sensing range min. | 0 m |
| Sensing range max. | 18 m |
| Light source | PinPoint LED |
| Type of light | Visible red light |
| Shape of light spot | Point-shaped |
| Light spot size (distance) | Ø 100 mm (10 m) |
| Wave length | 635 nm |
| Adjustment | IO-Link |
| Indication | LED blue, LED green, LED yellow |
| Supply voltage UB | 10 V DC ... 30 V DC 1) |
| Ripple | ≤ 5 Vpp |
| Usage category | DC-12 (According to EN 60947-5-2), DC-13 (According to EN 60947-5-2) |
| Current consumption, sender & Receiver | ≤ 30 mA, without load. At UB = 24 V |
| Protection class | III |
| Digital output Number | 2 (Complementary) |
| Output type | Push-pull: PNP/NPN |
| Signal voltage PNP HIGH/LOW | Approx. UB-2.5 V / 0 V |
| Signal voltage NPN HIGH/LOW | Approx. UB / < 2.5 V |
| Output current Imax. | ≤ 100 mA |
| Circuit protection outputs | Reverse polarity protected, Overcurrent and short-circuit protected |
| Response time | ≤ 500 µs 2) |
| Repeatability (response time) | 150 µs |
| Switching frequency | 1,000 Hz 3) |
| Housing | Rectangular |
| Dimensions (W x H x D) | 24.6 mm x 82.5 mm x 53.3 mm |
| Connection | Male connector M12, 4-pin |
| Housing material | Plastic, VISTAL® |
| Front screen material | Plastic, PMMA |
| Male connector material | Plastic, VISTAL® |
| Maximum tightening torque of the fixing screws | 1.3 Nm |
| Enclosure rating | IP66 (EN 60529), IP67 (EN 60529), IP69 (EN 60529) 1) |
| Ambient operating temperature | –40 °C ... +60 °C |
| Ambient temperature, storage | –40 °C ... +75 °C |
| Weight | Approx. 80 g |
The WLA26P-24162100A00 Sick 18m Retro-reflective Sensor is a photoelectric sensor designed for long-range object detection using autocollimation optics. The WLA26P-24162100A00 Sick 18m Retro-reflective Sensor provides a 0–18 m sensing range, uses PinPoint LED visible red light, and delivers PNP/NPN complementary outputs. This sensor belongs to the W26 and W16 series and is used in industrial automation systems requiring precise and repeatable sensing.
In industrial automation environments, the WLA26P-24162100A00 Sick 18m Retro-reflective Sensor is applied in conveyors, packaging machinery, automated assembly lines, and warehouse logistics. Retro-reflective sensing with autocollimation supports reliable detection over extended distances. High switching frequency enables accurate detection of fast-moving objects, while complementary outputs allow flexible integration with PLC control systems.
The WLA26P-24162100A00 Sick 18m Retro-reflective Sensor combines IP66/IP67/IP69 protection, VISTAL® housing, and a wide –40 °C to +60 °C operating range for dependable industrial use. With defined sensing distance, fast response time, and protected outputs, this W26 and W16 series sensor aligns with Sick industrial reliability standards. The WLA26P-24162100A00 is suitable for demanding photoelectric sensing applications.

