The FIS Ruggedized Fiber Optic Power Meter/Loss Test Set is ideal for harsh work conditions where traditional hand held units are not appropriate. These units are available with single or dual wavelength light sources and are housed in a weather-resistant, high-impact case. Your FIS Fiber Optic Power Meter is provided with a 2.5mm and 1.25mm Universal Adapters, Manual and Power Supply/Charger. When ordering, please indicate any other type of power meter adapter that you may require. The FIS Ruggedized Light Source comes standard with a ST Adapter for Multimode and FC Adapter for Singlemode units.