Optical Power Meter 650nm 7 Wavelength Fiber Optic Cable Light Tester For Fault
Output Optical Power of Red Lighting Pen: 650nm. Wavelength Range: 850-1625nm. Standard Wavelength (nm): 850 980 1300 1310 1490 1550 1625. LONG BATTERY LIFE: The fiber optic cable tester can work for 40 hours and then automatically shut down.