Fiber Optic Cable Tester 650nm Optical Power Meter 7 Wavelengths High Accuracy
7 WAVELENGTHS: The tester has 7 wavelengths, 850nm, 980nm, 1300nm, 1310nm, 1490nm, 1550nm, 1625nm, which can cover most of the needs of communication engineering maintenance. Red Light Wavelength: 650nm.