Network Cable Tester-Automatically scan moderapidly testing, the streamline shape is in accordance with the design of somatology; Durable design, working well even in construction location.
Grounding Test -Automatic efficient scan for the miss wiring, disorder cable, open and short circuit, Super handy device ensures your good mood.
Protective power switch for low power consumption-9 LEDs to indicate which wire whether open or not on both remote and master unit, Powered by DC 9V reduplicated battery (not included).
High quality-soft leather case provides more secure protection Capable to judge wrong connection, short circuit and open circuit.