The V5FF-GR-310 is a high‑temperature glass fiber sensor series designed for demanding environments from −40°C to +350°C. It is available in multiple head styles, including block and threaded cylindrical types, as well as a SUS303 stainless‑steel–sheathed version for aggressive chemical and high‑temperature applications.
When used with a PF‑403 fiber amplifier, the maximum sensing distance is 0 to 80 mm (±10%), and with a PF‑401 fiber amplifier it reaches 0 to 100 mm (±10%). The sensor can detect very small targets down to Φ0.05 mm, and the minimum allowable bending radius of the fiber is R60.