NF-308 Product parameters Features: 1. Directly hunt 5E, 6E, telephone wire, coaxial cable, USB cable and other cables. 2. Hub blink for locating network port by the flashing port light on Hub / Switch. 3. Check wiring error in 5E, 6E, coaxial cable, such as open circuit,short circuit, jumper wire, reverse connection. 4. Locate the wiring or connection error. 5. Measure the length of the network cable up to 1000m and locate the breaking point. 6. polarity test function measure DC voltage (0.5-60 V) 7. Memory and storage for calibration data. 8. Automatically time-delay shut off and Low battery alarm function. Technical indexes: (1)NF-308 Transmitter specifications Indictor:LCD 53x25 mm, with back light Tone frequency:225 Hz Max. distance of transmiion:2 km Max. distance of cable map:1 km Max. working current:Le than 70mA Tone mode:2 Tone adjustable Compatible connectors:RJ11,RJ45,Coacial, USB Max. signal voltage:15Vp-p Function selection:3 position buttons & 1 power switch Function and faults LCD display:LCD display ( wiremap, Tone, short, , No adapter, Low battery ) Cable map indication:LCD (#1-#8) Shielded indication:LCD ( #9) Voltage protection:AC 60V/DC 42V Battery Type:DC9.0V(NEDA 1604/6F22 DC9V x 1pcs) Dimension(LxWxD):185x80x32mm (2)NF-308 Receiver specifications Frequency:225kHz The Max. working current:Le than 70mA Battery Type:DC9.0V(NEDA 1604/6F22 DC9V) x1pc Dimension(LxWxD):218x46x29 mm (3)NF-308 Remote unit specifications Compatible connectors:RJ45, BNC Dimension(LxWxD):107x30x24mm Attention: 1.Don't connected high voltage lines to avoid buring out the machine. 2.Put into the right place to avoid hurting others,because of the sharp part. 3.Connected the cable to the right port. 4.Read the user manual before use it. Package Include:1X NF-308 wire tracker (battery is not include)