Description This instrument is a multifunctional handy tool do cable testing. Ma wide application with reinforced cable types and many functions. It is an essential test tool for the telecommunications engineer, cabling engineer, and network maintenance person. Characteristics: Works perfectly when RJ11 RJ45 cable is on. Easily and quickly locate the breakpoint without opening the wire guard. Network cable compilation: evaluate short circuit, circuit interruption, circuit interruption and intersection. Test line level, positive and negative polarity. Phone line check status: check the operating status of the phone line (idle, ringing and picking up the phone) and evaluate the TIP and RING lines. Check the continuity of the wire. Technical data: Operating temperature: 040C, maximum relative humidity 80 percent (without coagulation) Storage temperature: -1050C, maximum relative humidity 80 percent [no coagulation, no battery] Height: 2000 meters Explosion-proof class: IP40 Signal distance: 100 meters Battery (NOT included): Emiter: 1 x 6F22 or 9V battery Receiver: 1 x 6F22 or 9V battery. Emitter Size: 12,6 x 6,4 x 3 cm or 4,96 x 2,52 x 1,2 inch Receiver Size: 20,5x4x3cm or 8,07x1,57x1,2inch Emitter Weight: 90 g or 3,2 oz Receiver Weight: 76 g or 2,66 oz Package Size: 22 x 10,5 x 3,5 cm or 8,66 x 4,13 x 1,4 inch Package Weight: 240 g or 8,48 oz List of packages: 1 x Emiter 1 x Receiver 1 x Clip Adapter Cable 1xRJ45 cable 1 x User Manual (English)