Features: Optical fiber sensor is a kind of sensor which changes the state of the measured object into measurable optical signal.It has strong anti-interference ability, fine diameter, soft quality and light weight.Insulation, non - inductive electrical properties, resistant to water, high temperature and corrosion.Simple installation, easier circuit connection.Higher detection performance, high reliability and stability.Specification: Model: PR-610-IInduction mode: light senseOuter diameter of optical fiber: 2.2mmInternal diameter of optical fiber: 1.0mmProbe thread specification: M6Line length: 1mSensor head convex tube length: 10mm / 0.4inPackage List 1* Reflective Fiber Optic Sensor2* Nut2* Gasket.