YW-771 is an instrument composed of a master and a remote. It supports phone line and network line calibration, etc., and can be used for local area network management and integrated wiring construction.

 

When YW-771 is testing the cable, as long as the two ends of the cable to be tested are respectively inserted into the corresponding interface of the master and remote, the flashing of the indicator light(1~8) can be used to determine whether the cable wiring is abnormal and the reason for the abnormality.

 

YW-771 has the advantage of multi-purpose machine. In addition to helping to proofread the cable, it can also indicate whether the cable under test has a shielding layer light-G. In addition, YW-771 uses a split construction design that allows the master and remote to be separated for remote testing.

 

YW-771 uses a large-capacity 9V square battery, which makes the power supply more stable. At the same time, YW-771 also has a low-voltage prompt function. The user can replace the battery in time for the instrument according to the prompt.

YW-771 Small and light, can be carried with you.