Features • Wavelength: 650nm • Range: Visibility up to 5km • Easy to check fiber faults with visual red laser light • Universally Connector for test different interfaces: ST, SC, FC, FDDA • Tests both single-mode and multi-mode cables (optional 2.5mm fiber optic connectors to 1.25mm adapter) • Highly effective power circuits for stable laser power • Operates in both CW (Continuous Wave) and PM (Pulse Mode)