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Mini-Pro 1310/1550nm SM OTDR Mulit-Function Tester Built in OPM/OLS / RJ45 Test/VFL Test Rang 8m-60Km Dynamic Range 22dB/20dB Connector UPC (YD-2800-UPC)
Mini-Pro 1310/1550nm SM OTDR Mulit-Function Tester Built in OPM/OLS / RJ45 Test/VFL Test Rang 8m-60Km Dynamic Range 22dB/20dB Connector UPC (YD-2800-UPC)