1. Test open, short , cross connection, reverse, pairing connection and broken wire positioning. 2. To perform crosstalk test on network cable to solve the potential problem of slow speed. 3. Capable to measure length of network cable, coaxial cable, telephone cable and USB cable at length of 2000m. 4. Cable tracing on exchanger or Router with power-on. 5. To quickly find the target wire or cable among kinds of wires. 6. Single chip software watchdog design runs reliably. 7. Functions of storage and memory. 8. Automatic delay power on-off and backlight function. 9. Self-test function shall automatically make compensation due to change of battery level and ambient temperature.
