Features 1、GOOD PROTECTION: The visual fault detector adopts nanotechnology, multiple electrostatic protection, light port protection device, safe and reliable. 2、INTEGRATED CHIP: The fiber optic detector adopts highly integrated chip, integrates power management, signal modulation, and switch control. 3、HIGH EFFICIENCY: The laser head has strong stability and good penetration effect, standard 2.5mm interface, easy to penetrate long distance optical fiber. 4、ALUMINUM ALLOY: The optical fiber probe is made of aluminum alloy, wear resistance, falling resistance, corrosion resistance, and has a long service life. 5、PORTABLE DESIGN: The visual fault tester is in pen type design, with non slip handle, providing comfortable grip and greatly improving work efficiency. Specification Item Type: Fiber Optic Detector Material: Aluminum Alloy Battery: 2 x 1.5V AA Battery (not included) Purpose: Fiber optic comm detection Working Wavelength: 630-670nm Package List 1 x Fiber Optic Detector 1 x User Manual 1 x Portable Bag 1 x Hanging Rope