Model Number FTS510-N-ac Type OTDR Place of Origin China Brand Name OPWILL Type FTS510-N-ac Wavelength 1310/1550nm Dynamic Range 35/34dB Event dead zone 0.8m Attenuation dead zone 3m Pulse Width 3, 5, 10, 30, 50, 100, 275, 500, 1000, 5000, 10000, 20000 ns Laser VFL Application1 OPM (optional) Application2 OLS (optional) Application3 iOTA (optional)