This cable length tester is CE approval and comes with a mapping function that test cable continuity, such as if the cable is good, open, short, cross, reverse connection, etc. Features: PoE / PING testing to identify which pins are providing power and detect how much voltage and PING function test data packet and its loss and voltage detection (90-1000V, included in the 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 the receiver Capable of scanning cable on PoE switch or test open, short, cross connection, reverse, and broken wire positioning with M-S and M-R method without damaging the device Locate faults for RJ11/RJ45/BNC Cable. Measure cable length accurately. Voltage detecting function Memory and storage function: export or upload the data from PC (160 sets, txt format) Specifications: Emitter: Display: 2.8 inch LCD color screen 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 Remote Identifier Compatible connectors: RJ11, RJ45, BNC Set Includes: 1 x Emitter 1 x Receiver 1 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 1 x Color box