Home > Products > FO Testers > CLR-OTDR-SM                 CLR-OTDR-SM       OTDR - Singlemode 1310/1550nm, 32/30dB   Touch Screen, built-in VFL                   Ordering Information                   CLR-OTDR-M/S Singlemode & Multimode OTDR, 850/1310/1550nm, 20/30/28dB CLR-OTDR-SM 1310/1550nm 32/30dB Built-in Visual Fault Locator