LAN network cable tester RJ45, RJ11, N21CL, Cat5, Ethernet, Line

Power is provided by a 9V reduplicated battery (battery not included).
Package weight: 0.141 kg
Package contents: 1 x Network Cable Tester

Main features:
Testing twisted pair cables: turn on the power, insert the cables into both the main tester and the remote tester. The main tester lights will turn on sequentially from 1 to G.
Start: normal test speed
S: slow test speed
M: manual transmission

Main tester: 1-2-3-4-5-6-7-8-G
Remote tester: 1-2-3-4-5-6-7-8-G RJ45 / 1-2-3-4-5-6 RJ11

If two wires are shorted, none of the corresponding lights are on the remote tester, while the main tester remains unchanged.
If three wires are shorted, none of the lights are on.
If the test panel or board output matches (RJ45), it will connect to the tester.

BNC indicator lights up when the cable is working.
Automatic scanning, quick testing, simplified appearance, ergonomic design — these are some of the product's characteristics.

Abnormal connection examples:
If a cable, for example NO.3, is open circuit, both lights NO.3 on the main tester and remote will remain off.
If more wires are not connected, more lights will not turn on.
If fewer than two wires are connected, no lights will turn on.
If two ends are mismatched (e.g. NO.2 and NO.4), it will display as:
Main tester: 1-2-3-4-5-6-7-8-G
Remote tester: 1-4-3-2-5-6-7-8-G