•Measure Apex Length
•Emulsion of enlarging apex
•Batter power shows through club-shaped chart, which indicated on the LCD screen
•Without any operation for 5 minute, it will be turned off automatically
•Soft alarm sound can be chosen 3 kinds of tamber, adjustment of volume or without voice
•Patients only undertake little test electric current
•Only go through little current, patients will not feel any ache in a very comfortable treatment
•Precise measurement results, irrespective of dry or wet in the root canal