China Dvp-323 Single Mode 1310/1550nm OTDR Integrated Vfl10MW 30/28dB FTTX Fiber Optic Mini Dvp 323 Tester OTDR, Find details about China Dvp-323 OTDR, Dvp-323 from Dvp-323 Single Mode 1310/1550nm OTDR Integrated Vfl10MW 30/28dB FTTX Fiber Optic Mini Dvp 323 Tester OTDR