Sick GL6L-F6212 Photoelectric Sensor
Sick GL6L-F6212 photoelectric sensor delivers 12 m sensing range using laser light source, PNP output, and 1000 Hz switching frequency. The GL6L-F6212, a Sick 336 mm Retro-reflective Sensor, features Ø 3.5 mm light spot, 680 nm wavelength, and IP67 enclosure rating. It includes < 625 µs response time, potentiometer adjustment, 336 mm cable with M8 connector, and operates on 10–30 V DC supply within Sick, Sick Photoelectric Sensors, and the G6 series.
| Brand | Sick |
| Product Type | Photoelectric Sensors |
| Model Number | GL6L-F6212 |
Sick GL6L-F6212 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric retro-reflective sensor |
| Functional principle detail | - |
| Sensing range max. | 12 m |
| Sensing range | - |
| Light source | Laser |
| Type of light | Visible red light |
| Light spot size (distance) | Ø 3.5 mm (1,000 mm) |
| Wave length | 680 nm |
| Adjustment | Potentiometer, Operating mode switch |
| Supply voltage UB | 10 V DC ... 30 V DC |
| Ripple | < 5 Vpp |
| Current consumption | ≤ 20 mA, without load. At UB = 24 V |
| Protection class | III |
| Digital Output type | PNP |
| Switching mode | - |
| Switching mode selector | - |
| Signal voltage PNP HIGH/LOW | Approx. UB-3 V / 0 V |
| Output current Imax. | ≤ 100 mA |
| Response time | < 625 µs |
| Switching frequency | 1,000 Hz 3) |
| Housing | Rectangular |
| Dimensions (W x H x D) | 12 mm x 31.5 mm x 21 mm |
| Connection | Cable with M8 male connector, 4-pin, 336 mm |
| Housing material | Plastic, ABS |
| Front screen material | Plastic, PMMA |
| Enclosure rating | IP67 (EN 60529) |
| Ambient operating temperature | –20 °C ... +50 °C |
| Ambient temperature, storage | –40 °C ... +70 °C |
| Weight | Approx. 60 g |
The GL6L-F6212 Sick 336 mm Retro-reflective Sensor is designed for long-distance object detection using retro-reflective sensing technology. It provides 12 m sensing range, uses a laser light source, and operates with PNP output and 1000 Hz switching frequency. As part of the G6 series, the GL6L-F6212 is applied in industrial automation systems requiring stable sensing performance.
The GL6L-F6212 is used in conveyors, packaging systems, and automated production lines where consistent detection over longer distances is required. Its laser-based sensing ensures focused detection with a defined light spot, while the retro-reflective principle supports reliable operation even in varying background conditions.
The Sick GL6L-F6212 Photoelectric Sensor ensures consistent operation with defined electrical and mechanical specifications. The GL6L-F6212 in the G6 series supports industrial applications where accuracy and repeatability are required. As part of the Sick product portfolio, it is used in systems where reliable object detection and stable output signals are necessary.

