The optical fiber elastic effect, a method using optical interference, coherent demodulation of the light by the vibration signal into the tap cable for a visual signal and an audio signal. Accurately locate and identify people laying at wells, tunnels, pipes and poles for overhead cable and other environmental goals. Features: * Compact and lightweight handheld device, easy to operate * powerful field application capacity to meet the needs of the majority of telecommunications users * tens of kilometers distant mechanical vibration sensor cable, in a complex environment through audio or visual signal to target cable * automatically optimize the device parameters fiber troubleshooting instrument how to use, for different lengths of fiber optic lines * Test NDT instrument troubleshooting model, identification accuracy. Applications: * In pipelines, tunnels, manholes and other environmental overhead, according to accurately identify unilateral distal fiber optic cable * room building for communication operators, the line transformation, cable cutover, standardized management, resource survey, duty maintenance etc. Since its inception in product quality, technical training, pre-sales and after-sales service conscientious fiber troubleshooting instrument to meet the different needs of various customers, has won the trust and support of our customers. Companies adhering to the "quality first, users first" philosophy of the best fiber troubleshooting instrument, with reliable quality, reasonable price, perfect service and sufficient cash supply, ready to meet customer needs. We maintain users throughout the telecommunications unit, Netcom, China Mobile, China Unicom, China Railcom, electricity, radio and television, education ,, and medium-sized enterprises, research institutes and other areas of the good relations of cooperation. Fiber troubleshooting instrument Model | fiber troubleshooting instrument | provided by Tianjin Xin Xin Hao Yuan Hao Yuan Science and Technology Development Company Limited. Tianjin Xin Hao Yuan Science and Technology Development Co., Ltd. (tjaic.gov.cn/shownews.asp?id=5921) strong, credible, in Tianjin's special instrumentation industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving Xin Hao Yuan innovative ideas will lead into the brilliant and you work for a better future!