Feature: 1. WORKING PRINCIPLE: Optical fiber sensor is a sensor that changes the state of the measured object into a measurable optical signal 2. SLIM AND SOFT: Fiber optic sensor has strong interference resistant ability, possess fine diameter, soft quality and light weight 3. SAFE DESIGN: Diffuse reflection optical fiber sensor has good insulation, non inductive electrical performance, water resistance, high temperature resistance and corrosion resistance 4. EASY TO USE: The digital optical fiber sensor is easy to install and easy to connect, provide great convenience for your life 5. PROFESSIONAL AND PRACTICAL: Probe sensor cable has higher detection performance, high reliability and stability Specification: Item Type: Fiber Optic SensorInduction Mode: Light sense Optical Fiber Outer Diameter: Approx. 1.2mm / 0.05in Optical Fiber Inner Diameter: Approx. 0.5mm / 0.02in Line Length: Approx. 1meter / 3.3ft Probe End Length: Approx. 10mm / 0.39in. Package List: 1 x Sensor2 x Nut2 x Accessories