GL6L-N6211 SICK Photoelectric Retro-Reflective Sensor – 12m Range, NPN Output
The GL6L-N6211 is a G6-series photoelectric retro-reflective sensor from SICK (Germany), featuring a sensing range of up to 12m, red laser light source (Class 1), and NPN output. It is an ideal solution for long-distance object detection in industrial conveyors, logistics, and manufacturing plants. Available as a genuine product from AUMI.
The GL6L-N6211 is a high-performance photoelectric retro-reflective sensor developed by SICK (Germany). It detects objects via a reflector using a precise red laser beam. Key highlights include a maximum sensing distance of 12m, Laser Class 1 safety, NPN output, and IP67 protection.
Product Overview
The GL6L-N6211 belongs to SICK’s compact G6 series and operates on the retro-reflective principle. It emits a point-shaped red laser beam that is reflected back by a reflector (e.g., P250F). When an object interrupts the beam, the sensor switches its NPN output.
With a sensing range of up to 12m, the sensor is perfectly suited for large-scale applications such as long conveyors, factory gates, and automated warehouses. Its compact ABS housing (12 × 31.5 × 21 mm) and IP67 rating ensure reliable performance in harsh, dusty, and wet industrial environments.
5 Key Specifications:
- Sensing range: 0.08 m – 12 m (max), 0.08 m – 10 m (recommended) with P250F reflector
- Light source: Red laser, Class 1 (eye-safe), 680 nm, light spot Ø 3.5 mm at 1 m
- Output: NPN, 1 digital output, up to 100 mA, light/dark switching
- Protection rating: IP67 (EN 60529)
- Supply voltage: 10 – 30 VDC, current consumption ≤ 20 mA (no load)
Technical Specifications – GL6L-N6211 SICK
| Parameter |
Value |
| Operating Principle |
Photoelectric retro-reflective |
| Sensing Range (min – max) |
0.08 – 12 m (with P250F reflector) |
| Recommended Operating Range |
0.08 – 10 m (operating reserve 2) |
| Optimal Range |
0.08 – 4.2 m |
| Light Source |
Red laser, 680 nm, Laser Class 1 |
| Light Spot Diameter |
Ø 3.5 mm at 1,000 mm |
| Minimum Detectable Object (MDO) |
3.5 mm (at 1 m, 90% remission) |
| Supply Voltage (UB) |
10 – 30 VDC |
| Current Consumption |
≤ 20 mA (no load, UB = 24 V) |
| Output Type |
NPN, 1 digital output |
| Max. Output Current |
≤ 100 mA (UB ≤ 24 V); ≤ 50 mA (UB > 24 V) |
| Switching Mode |
Light/dark switching (selectable) |
| Switching Frequency |
1,000 Hz (1:1 light/dark ratio) |
| Response Time |
≤ 625 µs |
| Protection Rating |
IP67 (EN 60529) |
| Operating Temperature |
–20°C to +50°C |
| Storage Temperature |
–40°C to +70°C |
| Shock Resistance |
30 g, 11 ms (EN 60068-2-27) |
| Vibration Resistance |
10 – 55 Hz, 0.5 mm amplitude (EN 60068-2-6) |
| Dimensions (W × H × D) |
12 × 31.5 × 21 mm |
| Housing Material |
ABS plastic, front screen PMMA |
| Connection |
Cable + M8 male connector, 4-pin, 300 mm |
| Weight |
Approx. 60 g |
| Certifications |
CE, cULus, UKCA, China RoHS, IEC 60825-1 |
| MTTFd |
1,005 years |
| Part Number |
1109725 |
Source: Official SICK GL6L-N6211 datasheet, updated 2026-04-08. Download: [Link]
Industrial Applications
Thanks to its long 12m sensing range, precise laser spot, and robust IP67 design, the GL6L-N6211 is widely used in:
- Long Conveyors & Material Handling: Reliable detection at the start/end of long conveyor lines and warehouse logistics. The 12m range allows sensor and reflector to be mounted at opposite ends without complex cabling. Response time ≤ 625 µs ensures no missed objects at high speeds.
- Factory Gates & Automated Warehousing (AGV/AMR): Detection of vehicles, pallets, or personnel in large entrances and corridors. IP67 withstands dust and wash-down cleaning.
- Food & Pharmaceutical Packaging Lines: Product counting and missing-item detection. The Ø 3.5 mm laser spot enables precise detection of closely spaced small objects.
- Quality Control (QC): Effective detection of dark objects thanks to the integrated polarization filter, minimizing false triggers from shiny surfaces. Suitable for electronics, plastics, and metal production lines.
- Printing & Labeling Machines: Edge detection and label position monitoring. Compact size allows easy integration into space-constrained equipment.
AUMI has supplied the G6 series for numerous conveyor and logistics projects across Vietnam, providing optimal reflector selection and on-site installation support.
Comparison with Other G6 Series Models
| Criteria |
GL6L-N6211 (Retro-reflective) |
G6 Diffuse |
G6 Through-beam |
| Operating Principle |
Retro-reflective |
Diffuse |
Emitter + Receiver |
| Sensing Range |
Up to 12 m |
Shorter (~0.3–2 m) |
Up to 20 m+ |
| Requires Reflector |
Yes (P250F) |
No |
No (separate heads) |
| Performance on Shiny Objects |
High (polarization filter) |
Average |
Highest |
| Installation |
1 side (sensor + reflector) |
1 side (simplest) |
2 sides (more complex) |
| Best Suited For |
Long conveyors, wide gates |
Small/near objects |
Dusty environments |
Note: In dusty or misty environments, through-beam sensors are preferred. For single-side installation with ranges over 5 m, the GL6L-N6211 is the optimal choice.
Why Buy from AUMI?
Purchase the genuine SICK GL6L-N6211 from AUMI – the official authorized distributor in Vietnam.
- 100% genuine SICK products with intact seals, full CO/CQ traceability
- 12-month manufacturer warranty with 24/7 technical hotline
- Nationwide fast delivery with stock available in Hanoi and Ho Chi Minh City
- Free technical consultation: reflector selection (P250F, PL20F, PL10F), wiring diagrams, and mounting accessories
FAQ
Q1: What is the price of the GL6L-N6211?
Price depends on quantity and order conditions. Contact AUMI at 0917 991 589 (Hanoi) or 0932 226 100 (Ho Chi Minh City) for the best quotation and application advice.
Q2: Which industries is the GL6L-N6211 used in?
It is widely used in logistics and conveyors, electronics/semiconductor manufacturing, food & pharmaceutical packaging, quality control, and automated warehousing (AGV/AMR).
Q3: Does the GL6L-N6211 require a reflector? Which one?
Yes, as a retro-reflective sensor it requires a reflector. The standard reference is P250F. Alternatives include PL20F or PL10F depending on distance. AUMI provides expert guidance based on your actual installation distance.
Q4: Is the GL6L-N6211 waterproof?
Yes. It has an IP67 rating (dust-tight and protected against temporary immersion in water up to 1 m for 30 minutes).
Q5: Where to buy genuine SICK GL6L-N6211 in Vietnam?
AUMI is the official SICK distributor, offering full CO/CQ, genuine warranty, and technical support. Contact 0917 991 589 or visit aumi.com.vn.
Contact AUMI – Official SICK Distributor in Vietnam
📞 Hotline: 0917 991 589 (Hanoi) | 0932 226 100 (Ho Chi Minh City)
📧 Email: [email protected]
🌐 Website: https://aumi.com.vn
Offices:
- Hanoi: B44, Villa Area, Viet Hung Urban Area, Viet Hung Ward
- Ho Chi Minh City: 2nd Floor, HS Building, 260/11 Nguyen Thai Binh, Ward 7, Tan Binh
- Da Nang: 9th Floor, PV Bank Building, 2 Road 30-4, Hoa Cuong Ward
🔗 Official Datasheet
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