FiberTEK IV multi-/single-mode kit (850/1300/1310/1550 nm) for quick and easy certification of fiber optic cabling according to Tier 1 standard. The modules can be used with the LanTEK IV series and are simply plugged into the adapter slot of the tester. Quickly and easily check the attenuation, length and polarity of fiber optics at the touch of a button with the autotest. Detect problems visually with the integrated VFL. The modules are equipped with interchangeable test adapters. Determines signal attenuation and length on multimode and singlemode fibers, bidirectional measurements at two wavelengths - certification according to TIA/ISO standards, integrated laser source (red light) for port identification and for testing and locating breaks - 2.5 mm ferrule, multimode kit 850/1300 nm supports OM1 - OM4 cabling up to 100 Gb/s, singlemode kit 1310/1550 nm supports OS2 - OS2 cabling up to 400 Gb/s as well as passive optical networks (PON), including interchangeable SC, FC and ST adapters, LC adapter optionally available, optional Encircled Flux (EF) adapter for multimode fibers.