KEYENCE FU-66TZ M4 Tough-Flex Reflective Fiber Unit

The KEYENCE FU-66TZ is a threaded reflective fiber-optic sensing unit for use with a compatible KEYENCE fiber amplifier. It is a passive fiber unit, not a standalone digital sensor.

• Type: reflective fiber unit
• Head size: M4 threaded
• Detection arrangement: parallel
• Fiber length: 2 m, free-cut
• Fiber diameter: 1.3 mm × 2
• Fiber construction: Tough-Flex
• Minimum bend radius: R2 mm
• Minimum detectable object: 0.005 mm gold wire under optimal conditions
• Operating temperature: -40 to +50°C
• Weight: approximately 10 g

Detection distance depends on the selected fiber amplifier and sensing conditions. Confirm amplifier compatibility, installation geometry and required range before ordering.