During technical comparisons, GRL18S-P2431V appears alongside Sick Laser Sensor, P&F Photoelectric Sensor and Sick Distributors In India so engineers assess signal types, ingress protection, and ambient tolerances accurately.
Sick GRL18S-P2431V Photoelectric Sensor
The Sick GRL18S-P2431V Photoelectric Sensor offers a Cylindrical design, 0.06 m ... 6 m sensing range, PinPoint LED light source, PNP output, and Male connector M12, 4-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-P2431V |
Sick GRL18S-P2431V Photoelectric Sensor β 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 55.9 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) | Γ 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 | Light/dark switching 3) |
| Signal voltage PNP HIGH/LOW | VS - (β€ 3 V) / approx. 0 V |
| Output current Imax. | β€ 100 mA 4) |
| Response time | < 500 Β΅s 5) |
| Switching frequency | 1,000 Hz 6) |
| Connection type | Male connector M12, 4-pin |
| Protection class | III |
| Housing material | Stainless steel, Stainless steel V4A (1.4404, 316L) |
| Optics material | Plastic, PMMA |
| Enclosure rating | IP67 |
| Items supplied | Fastening nuts (2 x) |
| Ambient operating temperature | β25 Β°C ... +55 Β°C 1 |
| Ambient temperature, storage | β30 Β°C ... +75 Β°C |
The Sick GRL18S-P2431V Photoelectric Sensor utilizes a dual-lens retro-reflective design to deliver consistent performance over distances ranging from 0.06 m to 6 m, with a maximum reach of 7.2 m when paired with a proper reflector. It emits a highly visible red PinPoint LED light at a 650 nm wavelength, producing a focused Γ 175 mm light spot at 7 m that simplifies long-range alignment and enhances detection precision.
This sensor is housed in a rugged M18 stainless steel cylindrical body with dimensions of 18 mm x 18 mm x 55.9 mm, built using corrosion-resistant V4A (316L) grade material suitable for harsh industrial environments. It features an axial optical axis and connects via a standard 4-pin M12 male connector, ensuring quick installation. Powered by a 10β30 V DC supply and consuming only 30 mA, the GRL18S-P2431V supports a PNP output and operates in light/dark switching mode, offering a rapid response time of under 500 Β΅s and a 1,000 Hz switching frequency to meet the speed requirements of automated systems.
With an IP67-rated enclosure, this sensor reliably resists dust, water, and oil ingress, maintaining full function between β25 Β°C to +55 Β°C. Dual LED indicators provide at-a-glance status updates for diagnostics. Engineered for precision, durability, and easy integration, the GRL18S-P2431V is trusted by OEMs and automation engineers across packaging, assembly, and material handling systems.
The Sick WL4S-3F2130 Photoelectric Sensor is widely deployed in applications where compact form and precise detection are critical. In automated packaging lines, it ensures that items are correctly positioned before sealing or labeling. Maintenance teams often rely on it to detect transparent or glossy materials that standard sensors might miss.
Thanks to its background suppression technology and sharp switching point, this sensor avoids false triggers from nearby reflective surfaces. Engineers appreciate how it performs reliably even in dusty or changing lighting conditions, making it ideal for machinery in food, pharma, and electronic industries. Its red light beam helps during setup, eliminating guesswork and minimizing downtime.
For engineering students and junior technicians, the WL4S-3F2130 serves as a great learning tool. It introduces core sensing concepts like triangulation and background suppression while being easy to wire and test in small-scale automation projects. Whether in the field or classroom, this Sick Photoelectric Sensor delivers dependable performance that builds confidence and efficiency.

