It consists of 2 components: main (6.1cm x 10.5cm x 2.8cm) + remote (4cm x 10.5cm x 2.8cm): detects the pin assignment of the rj11 and rj45 cables. FREE Leather case.

Features:

Cable Tester for RJ11, RJ12, RJ45, 10/100 Base-T, Cat 5, CAT6, AT & T 258 A, TIA-568A/568B ...... etc.
It can Easy to clarify cable continuity, open and short.
remotely test cable up to 1000 ft in length ( remote kit included ).
Auto scanning mode for quickly testing.
Provided grounding test.

9 LEDs to indicate which wire whether open or not on both remote and master unit.
Power switch for saving battery power.