Feature: Telephone wire, network cable and other electric wires scanning & finding According to 16 wire sequences, you can judge the characteristics of short-circuit, breaking circuit, open circuit and crossing Auto scan mode rapidly test corresponding double-twisted cables (1,2,3,4,5,6,7,8 and G) to judge wrong connection, short/open circuit Network wire sequence collation supports direct wire collation of operating switch Open, short and cross of LAN cable 2-wire (RJ11)/4-wire (RJ45) telephone cable Line DC detecting, anode and cathode determination Ringing signal detecting Open, short, and cross test High sensitivity & strong anti-jamming ability Adjustable volume of signal Auto time-delay power off Low battery indication Comes with RJ45 to BNC Converter Trace telephone wire/ LAN cable Trace wire in electrical system Verify LAN cable condition Cable Assignment Test: Open, short and cross of LAN cables, 2-wire (RJ11)/ 4-wire (RJ45) Telephone cable Specifications: The max working current: emitter: ?10mA; Receiver: ?30mA . Signal output electric status: 8Vp-p . Signal transmission format: multi-frequency impulse . Distance of signal transmission: ?3km. Power: DC 9V battery (Included) Battery life: 50 hours continuously Material: ABS plastic Appearance dimension: 175*42*27mm(receiver); 126*49*34 (emitter). Color: Orange (as shown in the picture) Packages included: 1 x Cable Transmitter 1 x Cable Receiver/Tracker 1 x RJ45 Cable 1 x RJ11 Cable 1 x Cable with crocodile clamp 1 x Instruction manual 1 x Earphone