Style:1310/1550nm, 35/33dB This Single Mode OTDR is the new generation of intelligent meter for the detection of fiber communications systems. It’s good for: Measure the loss of splicing points, optical connectors and adapters Measure the loss of single fiber or cable Measure the length of cable ,set different refractive index for various fibers Locate the position of broken point, Optical connector and adapter Measure the discrete reflection ratio between SR points Measure return loss for whole fiber circuit including connecting points and s points Selected Specification Testing Wavelength: 1310/1550nm Dynamic Range: 35/33dB Event Dead Zone: 0.8m; Attenuation Dead Zone: 4m Pulse Width: 3ns, 5ns, 10ns, 20ns, 50ns, 100ns, 200ns, 500ns, 1μs,2μs, 5μs, 10μs, 20μs Testing Distance: 500m, 2km, 5km, 10km, 20km, 40km, 80km, 120km, 160km Linearity:≤0.05dB/dB Internal Visual Source: 10mw, CW/2Hz Stable Laser Source: >-5dBm Selected Features Internal large power visual laser source for accurate positioning the closer fault point Warning function could prevent module of OTDR damaged by optical signal Internal -5dBm stable laser source Supports English and Spanish input, user-friendly UI design. Analog keyboard is also available Measuring units can be displayed in Meter, Inches and Miles Dimension:230×185×70mm / 1.5kg Packing List: OTDR Tester Main unit, 8.4V power adapter, Lithium battery, FC/SC/ST/LC adapters, USB cord, User guide, CD disk, carrying case Notes Fiber Microscope Function does NOT available in this OTDR tester