This video have 3 parts:

Presentation + Installation + Operation

Apex locator is a kind of highly precise device used for determining the position of apex of root canal. 

Apex locator helps the dentist determine the length of the root canal, 

Features:

Freepex offer different perspectives to probe the root canal.high accuracy and self-calibration.

More click https://www.denjoy.cn/dental-multi-frequency-high-accuracy-apex-locator-tieapex.html