This meter combines with the cable tracing and cable length measuring functions. The advantage of this meter is the long-tracing distance clear sound signals rapid and precise cable length measurement. The meter is a practical tool for laboratories, factories, radio lover network installers and technicians. Features: Wire Mapping Function: When the crystal head is ready, use wire scanning to test the continuity of the network cable. Port Flashing Identify the Docking Port: The indicator light of the connecting network cable port will flash at the same frequency, which is safer. Length Test: Support cable length test in the range of 5M-200M. Precision Circuit Board: Using high-quality components, high-precision measurement guarantee. Resistance Test : Common resistance measuring pens can be measured with one end touching one side. NCV Induction Non-Contact: High and low AC voltage non-contact induction is safer. LED Lighting: Cables can be found clearly even in a dark computer room. HD Backlit Display: High-definition digital display large screen, clear data display, easy operation. Specifications: Material: ABS Model: NF-8509 Line Finding Function: Anti-interference mode / Normal mode Auto Power off Function: Yes Transmitter: Wire Mapping Test: Max. distance of 2,000m Wire Scanning: RJ45 600m Wire Length Test: 5-200m (3m) Port Flashing Test: 10M/100M/1000M POE: 4 core / 8 core power supply detection, POE voltage detection Continuity Test: 1. Detect the connectivity performance of wires and various conductors, The buzzer will sound when resistance is below 500; 2. Identify the polarity and forward voltage drop of diodes (0-3.3V) NCV Function: Inductive voltage detector (0-4 levels) Resistance Measurement: 600-60M (accuracy: 1.0%+5) AC/DC Voltage Measurement: 600mV-610V (DC accuracy:0.5%+3; AC accuracy:0.5%+3) AC/DC Current Measurement: 1mA-3A DC current (accuracy: 0.8%+3) Frequency: 0-10MHz (accuracy: 1.0%+3) Power Supply: 3.7V, 1500mA lithium battery Receiver: LED Lighting: Yes Telephone Function: Yes Power Supply: DC 9V (exclusive) (Not included) Maximum Working Current: 150mA Transmitter Size: 137.5 * 76 * 34mm / 5.41 * 2.99 * 1.34in Receiver Size: 205 * 38 * 29mm / 8.07 * 1.49 * 1.14in Package Weight: 650g / 1.43lb Package Size: 24 * 16.5 * 5.5cm / 9.45 * 6.49 * 2.16in Package List: 1 * Transmitter 1 * Receiver 2 * Test Meter Pen 1 * Type-C Data Cable 1 * Headset 1 * Tool Bag 1 * RJ45 Adaptor Cable 1 * User Manual (English/German/Spanish/French)