Founded in 2000, Shenzhen Noyafa Electronic Co., Ltd is located at the central part of Baoan District, Shenzhen. It is ahightech enterprise specializing in the network, production and marketing of network and optical communication equipment. Description: 1. Trace telephone wire/LAN cable; 2. Trace wire in electrical system; 3. Verify LAN cable condition; 4. Continuity test; 5. Low Battery Indication; 6. Bright white LED flash light. 7. Cable Assignment Test: Open, short and cross of LAN cable, 2-wire (RJ11)/4-wire (RJ45) Telephone cable 8. Cable State Testing (2-wire) : a. Line DC detecting and anode, cathode determination b. Ringing signal c. Open, short and cross testing