For example, the working wavelength (typical is 1310nm, 1550nm and 850nm), fiber light source type, fiber optic glass type (single mode or multimode), fiber connection interface (like FC, SC) and the system capacity and possible loss range.Fiber optic test equipment working environment is also the factor you should consider, whether you are going to use the fiber optic instrument indoor or outdoor, the equipment working temperature, power supply, battery life. Portable fiber optical test equipment usually should be able to use battery as power, it is suggested to choose the test equipments that could also use very common type battery.
June 17, 2011