# Beijing Tianyihongda Science & Technology Development Co., LTD | overhead fault indicators,remote fault indicator, cable fault indicator,wiring fault detector, underground cable fault distance locator,underground electric cable fault locator, ## summary > Manufacturer, Exporter, Seller, Brands: TIANYIHONGDA, Our company is a high and advanced technology enterprise, is professionally engaged in research,production, sales and service of smart grid devices., Established in 2014, Employees: 150~180, Annual sales: 3000000-5000000, Export ratio: 50% - 60%, Primary markets: North America, South America, Western Europe, Eastern Europe, Eastern Asia, Southeast Asia, Middle East, Africa, Oceania, Worldwide. ## Company Information * [Company Profile](https://www.powerlinefaultindicator.com/aboutus.html): Overview, history, teams and core capabilities. * [Factory & Manufacturing](https://www.powerlinefaultindicator.com/factory.html): Production capacity, OEM/ODM capabilities, and R&D strength. * [Quality Control](https://www.powerlinefaultindicator.com/quality.html): ISO certifications, quality standards, and compliance. * [Contact Us](https://www.powerlinefaultindicator.com/contactus.html): Global offices, inquiries, and support channels. ## 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