The tester is a newly designed and very practical tool that can easily read the correct pin configuration of 10 Base T cable (Category 5) , 10 Base 2 cable (coax) , RJ45 / RJ11 modular cables, 356A, TIA-568A / 568B and Token Ring cable by comparing one transmitting end to the corresponding receiving end. With the remote kit it can test cables installed far away either on wall plate or patch panel. It is easy to verify the cable continuity, open, short and cross-connect. It is affordable, so you can benefit the most. FUNCTION@ Test the correct pin configuration of 10 Base T-2, thin Ethernet cable, RJ45 / RJ11 modular cables 356A, TIA-568B and Token Ring cable and etc.@ With remote kit, it can remotely test cables up to 300m away either on the wall plate or patch panel. @ Test the ground wire. @ Measure DC / AC Voltage, DC / AC Current, Resistance, Continuity & diodes. SPECIFICATIONSFunction Max Range Basic Acc. Voltage DC 600V + / -0. 5% Voltage AC 600V + / -1. 2% Current DC 200mA + / -1. 5% Current AC 200mA + / -2. 0% Resistance 20M Ohm + / -0. 8% Continuity Test Beep if less than 100 OhmSize (HxWxD) : 162mm x 74. 5mm x 44mmCERTIFICATESCE-EMC & LVD EN: m50082-2, 50082-1. EN: 61010-1, EN: 61010-02-03IImportant tool for Network Engineer to carry.