Click here to order samples with Factory Retail price on Aliexpress store

Main Features 

【Automated Design】 Automatically run all tests and inspections to find problem shorts, open wires, cross-wiring, and other wiring incidents. 

【Cable Types】The LAN cable tester can test both of the RJ11 telephone cable and RJ45 network cables such as RJ45 Cat5 Cat6 Cat7. 

【Easy-to-Read LED Display】100% brand new network cable tester, visible LED status display shows the problem. Handheld and easy to carry. 

【Rugged & Durable】 The Network Cable Tester made of high-quality PC material is durable, prevents burnout, and resists corrosion. It is an ideal choice for you to test the network. 

【Spefication】1x 9V battery (not included) || Dimensions: 96 x 103 x 27 mm || Weight: 120g || Color: White 

1. Function 

(1) Test on twisted pair 1, 2, 3, 4, 5, 6, 7, 8, G wire pairs one by one (pair), and can distinguish which one (right) wrong wire, short circuit and open circuit. 

(2) Switch ON is the normal test speed, "S" is the fast test speed, and OFF is to close the line tester. 

2. Twisted Pair Test 

1) Turn on the power, insert the network cable plugs into the main tester and remote tester respectively, and the indicator lights of the host will flash from 1 to G one by one, as shown in the figure below: 

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-------- (RJ11) 

2) If the wiring is not normal, it will be displayed as follows: 

(1) When a network cable such as line 3 is disconnected, the main tester and remote test terminal No. 3 lights are not on. 

(2) When several lines are unavailable, several lines will not light up. When the network cable is less than 2 lines connected, the light will not light up. 

(3) When the two ends of the network cables are out of order, for example, the 2/4 line is out of order, the display is as follows: 

The main tester remains unchanged: 1-2-3-4-5-6-7-8-G 

The remote test terminal is: 1-4-3-2-5-6-7-8-G 

(4) When two network cables are short-circuited, the main tester does not light up, and the two cables that are short-circuited at the remote test terminal are both lit slightly. If there are more than three (including three), all short-circuited ones will be short-circuited. The lights of several line numbers are not on 

3.100% Satisfaction: If three cables, including three cables, are short-circuited, the corresponding lights will not light up. 

If testing a terminal block or wall socket, connect two cables (RJ45) to the tester.