Portable and User-Friendly Design:with a user-friendly interface, the cable tester is designed for on-the-go network maintenance Advanced Fiber Type Detection:Single Mode fiber type detection capability enables precise and efficient network troubleshooting High Quality Fiber Optic Equipment:cable tester boasts premium fiber optic equipment, ensuring reliable and accurate performance for network line testing Comprehensive Cable Type Compatibility:CAT5/CAT6 cable type compatibility with POE Checker functionality makes this tester a versatile tool for various network environments Extensive Testing Features:Includes Wiremap Port, Remote Continuity, Cable Sequence & Fault Test, STP/NTP, Audio Transmission, and more for thorough network assessment TRANSMITTER:Wiremap Port: RJ45 Remote Continuity: 300m Cable Sequence and Fault Test: Yes STP/NTP: Yes Short Circuit Reminder: Yes Anti-jamming and Normal Mode: Yes Audio Transmission Frequency: 455KHz Audio Transmission Distance: RJ45 300m VFL: 10mW Power Meter: 850/1300/1310/1490/1550/1625nm (wavelength) Crimping: RJ45-8 cores, min length is 10cm Low Voltage Prompt: Less than 3.5V0.1V, power indicator flashes RECEIVER: Scan Current: 300mA emote Continuity: 300m NCV Detection: Yes Lamp: Yes Low Voltage Prompt: Yes Color: As Shown Material: ABS Package Contents: 1 set x line finder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.