1.test time: 0.5s 2.detection: cat.5e, cat.6, coaxial cable and wiring fault of telephone line 3.launch/ ... cable tester , best cable tester , utp cable tester 1.can quickly (0.5 seconds) detect cat.5e, cat.6, coaxial cable and wiring fault ... port and confirm whether hub port is good or bad.6.automatically shut down if don't operate, AAA battery and ...