AXS-100 Definitive Handheld EXFO OTDR AXS-100 Definitive Handheld EXFO OTDR Compact, lightweight handheld OTDR optimized for access/FTTx network ... legibility under direct sunlight or in other demanding outside conditionsØ Handheld, small, lightweight unit: 1 kg (2.2 lb)Ø ... technology with power meter functiona lities in one powerful handheld unit.Optimized for testing passive optical networks (PON) ...