Network NF-308 Telephone Audio Cable Length Tester Remote Identifier

Network NF-308 Telephone Audio Cable Length Tester Remote Identifier: Specifications: - Directly hunt 5E, 6E, telephone wire, coaxial cable, USB cable and other cables. - Hub blink for locating network port by the flashing port light on Hub / Switch. - Check wiring error in 5E, 6E, coaxial cable, such as open circuit, short circuit, jumper wire, reverse connection. - Locate the wiring or connection error. - Measure cable length up to 1000m and locate the breakage point. - polarity test function measure DC voltage (0.5-60 V) - Memory and storage for calibration data. - Automatically time-delay shut off and Low battery alarm function.