Multifunction cable tester Network cable tester NF-8108.Features: 1. Measure network cable length and determine the distance of open and short circuit.2. Check wiring error in 5E, 6E, coaxial cable, such as open circuit,short circuit, jumper wire, reverse connection .7. With 8 remote identifiers , more easy to work.3. Portable unit with long battery life (wait-case 50 hours).4. Automatically time-delay shut off.5. Self-checking and automatically compensate any change in battery capacity or ambient temperature.Technical indexes: NF8108-M Transmitter specificationsIndictorLCD 53x25 mmTone frequency225 HzMax. distance of cable map1000mMax. working currentLess than 70mACompatible connectorsRJ45Faults LCD displayLCD display Low battery displayLCD ( 6.5V)Voltage protectionAC 60V/DC 42VBattery TypeDC 4x1.5vDimension(LxWxD)184x84x46mmNF8108-M Remote unit specificationsCompatible connectorsRJ45Remote units8Dimension(LxWxD)78x33x22mm