Features SOC adapters provide direct connectivity for Tempo FiberTOOLS to a wide range of industry-standard fiber optic connectors Adapter design ensures maximum accuracy and repeatability when performing critical measurements on fiber optic systems Easy to clean and use Single-mode and multimode compatible SOC adapters are compatible with both PC and Angled APC physical contact interfaces SOC (Snap-On Connector) adapter is used on all power meters and 250 "B" series LED Sources Application: Used on all power meters and 250 "B" series LED SourcesGreenlee