Non contact voltage tester https://www.atoallinks.com/2021/any-good-manufacturers-for-network-cable-tester/ "Established in 2006, SHENZHEN NOYAFA ELECTRONIC CO., LIMITED is a leading manufacturer of testing instrument in China. We specialized in R&D, production and sales of communication network testing tools, integrated wiring and instrumentation products. Our main products are Wire tracker, LCD cable tester, Cable length tester, CCTV monitor tester, Underground wire locator, Laser range finder and other test tools. During 15 years of development, we gain lots of customers with outstanding advantages over other competitors and buld double win business relationship with customers all over the world." digital distance meter