Product Description
SICK GRL18-SG-F2339 Photoelectric Sensor
The SICK GRL18-SG-F2339 (Part Number: 1059551) is a highly reliable retro-reflective photoelectric sensor designed for robust industrial automation and object detection applications. Featuring a standard M18 cylindrical housing, this sensor offers an impressive scanning range of 0.05 to 6 meters, which is extendable up to 7.2 meters when paired with a PL80A reflector. It operates efficiently on a 10-30V DC supply voltage and utilizes a dependable PNP Dark-ON (D.ON) switching output. Engineered for durability and versatility, it withstands operating temperatures from -25°C to +55°C and meets Class 2 protection standards. Ideal for conveyor systems, packaging lines, and general manufacturing environments, the GRL18-SG-F2339 ensures precise detection and long-lasting operational performance.
Technical Specifications:
- Brand: SICK
- Model: GRL18-SG-F2339 (Part Number: 1059551)
- Sensor Type: Retro-reflective photoelectric sensor
- Scanning Range: 0.05m to 6m (Up to 7.2m with PL80A reflector)
- Supply Voltage: 10 – 30 V DC
- Output Type: PNP, Dark-ON (D.ON)
- Continuous Output Current: <100mA (Max 50mA at >25VDC or >48°C)
- Operating Temperature: -25°C to +55°C (UL: +50°C)
- Protection Class: Class 2 (Requires 1A fuse suitable for 30 Vdc)
- Wiring Configuration: Brown (1/L+), Blue (3/M), Black (4/Q), White (2/n.c.)
- Country of Origin: Made in Malaysia

SICK GRL18-SG-F2339 Photoelectric Sensor
Optimize your automation systems with the SICK GRL18-SG-F2339 (1059551) retro-reflective photoelectric sensor. Featuring a 7.2m max scanning range, PNP Dark-ON output, and 10-30V DC operation, this durable sensor delivers precise and reliable object detection for demanding industrial applications.

