Product Description

The Keyence FU-21X is a high-precision reflective fiber optic sensor head designed for applications requiring compact size and exceptional sensitivity. With a straight M3 coaxial design and a 50 cm non-cuttable fiber length, it ensures accurate detection of minuscule objects, such as a 0.005 mm gold wire. Its robust construction withstands temperatures ranging from -40°C to +70°C, making it suitable for diverse industrial environments. Weighing approximately 4 grams, the FU-21X offers reliable performance in tight spaces, ideal for integration into automated systems and machinery.

Technical Specifications

• Model: FU-21X
• Size: M3
• Detection Arrangement: Coaxial
• Fiber Unit Length: 50 cm (non-cuttable)
• Shape: Straight
• Minimum Bend Radius: R25 mm
• Minimum Detectable Object: 0.005 mm gold wire
• Environmental Resistance: Ambient temperature range: -40 to +70°C
• Weight: Approx. 4 g​