Ideal for Telecom post bureau, Net Bar, Telecom Engineering Companies, Network Engineering Companies, Power Supply Army and other departments requiring wire. Features: Finds Telephone wire target in a bunch of cables in no time, find the wire on a switch or on a patch panel Finds the target Network wire in groups of cables in second, find the wire on a net bar or on a router Find the target Electric Wire quickly, no electric drill is required Network Wire Collation Function, according to 16 wire sequences, you can judge the characteristics of short-circuiting, 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) while judging a wrong connection (short circuit and/or open circuit) Network wire sequence collation, support direct wire collation of operating switch Trace telephone wire/LAN cable Trace wire in electrical system Verify LAN cable condition Continuity test Offers other functions such as Open Circuit or Short circuit Testing DC Level Testing Low Voltage Alarm Function Volume adjustment Spotlight or Flashlight Function Energy saving Low battery indication and with Bright white LED flashlight Cable assignment test (Open, short, and cross of LAN cable) 2-wire (RJ11)/4-wire (RJ45) telephone cable Cable state testing (2-wire) Line DC detecting, anode & cathode determination Ringing signal detecting Open, short and cross tests Specifications: Max working current: Emitter: less than or equal to 10mA Receiver: less than or equal to 30mA Signal transmission format: Multi-frequency impulse Signal output electric status: 8Vp-p Distance of signal transmission: more than or equal to 3Km Volume Regulate Function: Yes Earphone for noise environment: Yes RJ45 to BNC Converter: Yes Sensitivity: induction distance less than 20mm, strong anti-jamming ability Storage Temperature: -20 ~ 50°C Operation Temperature: -10 ~ 40°C Power Supply: DC 9V Battery Battery lifetime: >50hrs continuous use Size & Weight: Emitter: 126 x 49 x 34mm ; 0.060kg Receiver: 175 x 42 x 27mm ; 0.072kg Whole Set: 270 x 165 x 45mm ; 0.420kg Set Includes: 1 x Emitter 1 x Receiver 1 x RJ45 Network Cable 1 x RJ45 to BNC Converter 1 x Earphone 1 x Toolkit Bag 2 x 9V Battery English Instruction Manual Colored Packaging Box