- Heat resistant temperature: 300°C 572°F*2
- Fibre unit length: 1 m39.37″ cannot be cut
- Minimum bend radius: R25 mm0.984″
- Minimum detectable object: Gold wire with a diameter of 0.005 mm0.0002″ *3
- Ambient temperature: -40 to +300 °C -40 to 572 °F
Free Shipping: $50+ U.S. orders | $350+ International orders
12-Month Warranty
Hassle-Free Returns Within 30 days
Over 100,000 parts in stock
- Brand: Keyence
Keyence FU-82C Fiber Optic Sensor, Reflective Fiber Unit
Mfr # FU-82C
$466.09
/ea
Availability: Available to Order|Typically ships within 7 to 10 business days. Lead time may vary based on supplier availability.
- Free shipping on U.S. orders over $50 and international orders over $350.
- Hassle-Free 30-Day Returns.
- 12-Month Warranty for all products.
- Get 10% off—join our email list.
Accepted Payments
- Extreme Heat Resistance
Capable of withstanding continuous operation in environments up to 300°C, ideal for high-temperature applications. - Ultra-Fine Detection
Detects objects as small as 0.005 mm in diameter, including fine gold wires, ensuring precision in micro-scale inspections. - Durable Fiber Design
Equipped with a fixed 1 m fiber length and a minimum bend radius of 25 mm, providing stability and reliability in harsh setups. - Wide Environmental Range
Operates effectively from -40°C to +300°C, making it suitable for both cryogenic and high-heat industrial environments.
The Keyence FU-82C Reflective Fiber Unit is designed to deliver uncompromising precision and resilience in the most demanding conditions. As part of Keyence’s advanced fiber sensor lineup, this model specializes in maintaining consistent performance where conventional sensors cannot withstand extreme temperatures or detect ultra-fine targets.
One of its standout qualities is heat resistance up to 300°C (572°F), making it highly reliable for industries such as metal processing, semiconductor manufacturing, glass production, and high-temperature assembly lines. In these harsh environments, stability is crucial, and the FU-82C ensures continuous performance without degradation caused by prolonged exposure to heat.
Equally impressive is its ability to detect extremely small targets, such as gold wire with a diameter of only 0.005 mm (0.0002″). This precision allows it to be used in microelectronics, precision component inspection, and fine wire detection, where minute details can impact overall product quality. With this capability, manufacturers gain the confidence to execute stringent quality control in delicate and high-value applications.
The FU-82C is built with a fixed 1 m fiber length that ensures optical consistency throughout its service life. Its minimum bend radius of 25 mm allows for flexible installation while minimizing the risk of optical loss or breakage. At just 29 g, it is lightweight yet durable, easing installation without adding unnecessary load to sensor heads or fixtures.
In terms of environmental adaptability, the FU-82C covers a wide operating range from -40°C to +300°C, making it equally effective in cryogenic chambers and furnace-level conditions. Its rugged design ensures long-term stability even when exposed to continuous temperature cycling, vibration, or industrial contaminants.
Applications for the FU-82C span across industries requiring non-contact reflective detection in extreme conditions. From monitoring delicate wires in semiconductor bonding processes to inspecting heated glass and metals during production, the sensor’s precision and resilience make it indispensable.
In conclusion, the Keyence FU-82C offers a rare balance of high-temperature endurance, ultra-fine detection capability, and robust fiber design, ensuring manufacturers can maintain precision and reliability even in the harshest environments. It stands out as a premium solution for engineers seeking durability and accuracy without compromise.
Product Specifications
| Manufacturer | Keyence |
|---|
We’re Always Ready to Assist You
Submit A Request
Reach us through our form.
Give Us A Call
Connect with a representative.
Live Chat
Chat live with our support team.

Reviews
There are no reviews yet.