Procurement managers rarely finalize GRL18S-F2331 without reviewing Sick Laser Sensor, Sick Gtb6 P4211 and P&F Photoelectric Sensor, ensuring that the chosen component meets budget, compliance, and delivery conditions.
Sick GRL18S-F2331 Photoelectric Sensor
The Sick GRL18S-F2331 Photoelectric Sensor offers a Cylindrical design, 0.06 m ... 6 m sensing range, PinPoint LED light source, PNP output, and Connector M12, 3-pin connection. Manufactured by Sick under the Sick Photoelectric Sensor category, this model belongs to the GR Series.
| Brand | Sick |
| Product Type | Photolectric Sensor |
| Product | GRL18S-F2331 |
Sick GRL18S-F2331 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric retro-reflective sensor |
| Functional principle detail | Dual lens |
| Dimensions (W x H x D) | 18 mm x 18 mm x 38.1 mm |
| Housing design (light emission) | Cylindrical |
| Thread diameter (housing) | M18 x 1 |
| Optical axis | Axial |
| Sensing range max. | 0.03 m ... 7.2 m |
| Sensing range | 0.06 m ... 6 m |
| Type of light | Visible red light |
| Light source | PinPoint LED |
| Light spot size (distance) | Ø 175 mm (7 m) |
| Wave length | 650 nm |
| Adjustment | None |
| Indication | LED green, LED yellow |
| Supply voltage UB | 10 V DC ... 30 V DC |
| Ripple | < 5 Vpp |
| Current consumption | 30 mA |
| Switching Output | PNP |
| Switching mode | Dark switching |
| Signal voltage PNP HIGH/LOW | VS - (≤ 3 V) / approx. 0 V |
| Output current Imax. | ≤ 100 mA 3) |
| Response time | < 500 µs 4) |
| Switching frequency | 1,000 Hz 5) |
| Connection type | Connector M12, 3-pin |
| Protection class | III |
| Housing material | Metal, Nickel-plated brass and ABS |
| Optics material | Plastic, PMMA |
| Enclosure rating | IP67 |
| Items supplied | Fastening nuts (2 x) |
| Ambient operating temperature | –25 °C ... +55 °C 9) |
| Ambient temperature, storage | –40 °C ... +70 °C |
The Sick GRL18S-F2331 Photoelectric Sensor employs a dual-lens retro-reflective detection principle with an axial optical axis, allowing for consistent detection over a sensing range of 0.06 m to 6 m, and up to 7.2 m when used with optimal reflectors. This sensor uses a bright visible red PinPoint LED with a 650 nm wavelength and delivers a sharp Ø 175 mm light spot at 7 m, making alignment easy and highly accurate even at long distances.
Housed in a standard M18 cylindrical metal body with nickel-plated brass and ABS components, this sensor is built for durability in rough plant conditions. It supports a standard 10 V to 30 V DC supply voltage, with a low 30 mA current consumption and delivers a PNP switching output in dark switching mode. The response time is under 500 µs, and it supports a fast 1,000 Hz switching frequency, making it highly reliable for high-speed automated operations.
Its M12, 3-pin connector ensures secure wiring and fast installation. The IP67-rated enclosure protects against dust, moisture, and oil, allowing this sensor to operate reliably from –25 °C to +55 °C. With dual LED indicators for power and output, and supplied with fastening nuts for easy mounting, the GRL18S-F2331 is a go-to sensor for machine builders and automation integrators alike.
The Sick WL4S-3F2130 Photoelectric Sensor is widely used in fast-paced industrial setups that require compact sensing and reliable performance. In packaging lines, it confirms the presence of cartons before sealing, preventing errors and reducing product waste. In labeling systems, it detects every object with precision—even those with reflective or transparent surfaces—ensuring labels are applied at the right moment.
Maintenance engineers prefer this sensor for its low-maintenance design and quick diagnostics via onboard LEDs. Its small form factor allows easy installation on equipment with tight space constraints, and it stays stable even in areas exposed to dust or vibration. Students and entry-level engineers can learn how detection technologies work in real-world scenarios using this model, making it an excellent educational reference in practical labs.
From bottling plants to electronics assembly, the WL4S-3F2130 helps streamline operations with fast response times and dependable signal switching. It eliminates manual verification steps, improves machine uptime, and brings automation efficiency to the forefront—one sensor at a time.
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