HSV 110D OTDR is a 3.5-inch touch screen multi-OTDR instrument, integrating 12 functions such as OTDR, OTDR Event Map, Power Meter, VFL (Visual Fault Locator), Light Source, Loss Test set, RJ45 cable tracker and Flashlight. "Computer-level" file management to meet the test requirements of various occasions. The OTDR has a maximum dynamic range of 24/22dB, internal memory can store more than 1000 lines. External: TF Card comes with a 3.7V, 4000mAh high-density polymer lithium battery. Intelligent power-saving management, battery life: about 20 hours in standby mode, 12 hours in measurement, and supports power supply and charging of power banks.