Functions: 1. TDR theory to measure length of cat5e, cat6 and cat7 cable, coaxil cable, telephone cable. 2. Wiremapping with length and provide the distance to fault information. 3. PoE function: identify which pins are providing power and detect how much voltage. 4. PING function to test network performance, data packet, MIN&MAX time. 5. Quickly find the targeted cable without stripping isolation among unknown cables. 6. Hub blinks for locating network port by the flashing port light on Hub / Switch. 7. Voltage detector: included in receiver (90~1000V) Benefits: 1. Tone traces cable with complete AC fliter. 2. TF card function to export data from computer (50sets, TXT format) 3. 2 scan modes: common switch and PoE switch 4. 3.7V lithium battery for power supply and 2.8 inch color screen Technical indexes: NF-8601S Transmitter specifications IndictorLCD 320x240 mm, with backlight Cable test typesSTP/UTP 5E,6E network , telephone , coaxial cable. Max. distance of wiremap1000 m Max. distance of tracing1000m Max. distance of cable length1000 m Min. distance of calibration50 m Accuracyup to 98% ( after calibration ) Compatible connectorsRJ11, RJ45, PING/POE, BNC Cable map indicationLCD (#1-#8) Battery Type3.7V lithium battery 1800mAh Work temperature / humidity10 ~ -60 / 0~70 Dimension(LxWxD)173x92x34mm NF-8601S Receiver specifications Cable huntingRJ11,RJ45, BNC Types of cable 2 cores