MASTECH Multimeter MS6813 Multifunction Network Cable & Telephone Line Tester Detector Tracker Autoranging Multimeter Tester Product does not contain batteries Features: 100% brand new Material: ABS Power supply: 1 x 6F22 battery (not included) Self implement T568A, T568B, 10Base-T and Token Ring cables testing. UTP and STP co-axial cable testing. Network integrity and configuration examination. Open/ shorts circuit, mi wiring, reversals, and split pairs testing. Network continuity testing. Cable open/short point tracing. Receive signals in the network or telephone cable. Transmit signal to target network and trace cable direction. Detect telephone line modes: ideal, vibrate, or in used (off-hook) MS6813 is a hand held network cable tester, which is ideal for Coaxial Cable (BNC), UTP and STP cable installation, measurement, maintenance or inspection. Testing telephone line modes Package Includes: 1*MS6813T cable tracker(transmitter) 1*MS6813R cable tracker(receiver)