This cable length tester is CE approval do mapping that test cable continuity. It can do port flash that helps you locate the target network cable more easily while connecting with the router/switch. It is a practical tool for low voltage system installation and maintenance technicians of communication circuits and comprehensive wiring circuits. Features: PoE function identifies which pins are providing power and detect how much voltage and PING function tests data packet and its loss) and voltage detection(90-1000V, included in receiver) Trace targeted cable among lots of unknown cables, port flash function help trace LAN cable connected to switcher or router visually, no need of receiver Capable of scanning cable on PoE switch without damaging the device, locate faults for RJ11/RJ45/BNC Cable, measure cable length accurately; Tracing (with AC Interference Rejection)/Measure length of network cable, coaxial cable, and telephone cable up to 2000m, no connection of remote unit needed Voltage detecting function comes with 8 remote identifiers which enable to test 8 cables at one time, improving work efficiency; capable to test open, short, cross connection, reverse, and broken wire positioning with M-S and M-R method Memory and storage function: import and export data from a computer(160 sets, txt format) and colored screen with built-in Lithium battery Specifications: Emitter/Transmitter: Display: 2.8 inch LCD 320x240 mm, colored screen with backlight Cable testing types: STP/UTP 5E, 6E network cable, telephone cable, coaxial cable, and common metal wires connected with alligator clip Max. distance of wiremap: 2000m Max. distance of tracing cable: 1000m Max distance of cable length measurement: 2000m Min. distance of calibration: 10m Accuracy: 98% (after calibration) Compatible connectors: RJ11, RJ45, BNC, PING/PoE Cable map indication: LCD (Pin#1 – Pin#8 & G) Power Supply: 3.7V rechargeable lithium battery 1800mAh (installed) Work temperature/ humidity: 10°C-60°C/ 0%RH-70%RH Dimension: 173 x 92 x 34mm Receiver: Cable hunting: RJ45, RJ11, BNC cable Types of cable: ≥2 cores Power supply: 3.7V rechargeable li-battery 1800mAh Dimension: 106 x 32 x 30mm Remote identifier Compatible connectors: RJ11, RJ45, BNC Remote: 8pcs Dimension: 106 x 32 x 30mm Set Includes: 1 x Emitter 1 x Receiver 8 x Remote identifier 1 x RJ11 cable adaptor 1 x RJ45 cable adaptor 1 x Alligator clip 1 x 1GB TF Card 1 x English Manual 1 x USB Cable 1 x Power adaptor 1 x Carry pouch