Description:This instrument is a multi-functional handheld cable testing tool.It has wide application with reinforced cable types and multiple functions.A necessary testing tool for telecommunication engineering, wiring engineering and network maintenance person. Features:Work prefect when RJ11 RJ45 cable is on power.Wire Tracing: Trace RJ11, RJ45, cables or other metal wire via adapter.Easy and fast to locate the breakpoint without opening the wire's cover.Network cable collation: Judge short-circuit, breaking circuit, open circuit and crossing.Test line level, positive and negative polarity.Status of telephone line checking: Test the working status of telephone line idle, ringing, and off-hook and judge TIP and RING line.Check wire continuity.Specification:Model: FWT11Operating temperature: 0 40 degC, maximal 80 relative humidity non-condensingStorage temperature: -1050 degC, maximal 80 relative humidity non-condensingAltitude: Anti-explosion rating: IP 40Distance of emitting signal: about 300m.Emitter Battery: 6F229VReceiver Battery: 6F229VThe router is running on the power supply: YesDetection cable type: RJ45, RJ11Phone work status detection: YesNetwork cable detection: YesCheck wire continuity: YesTest line's level: YesPositive and negative polarity: YesPackage List:1 x Receiver1 x Transmitter1 x User manual1 x RJ11 cable1 x RJ45 cable Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store