Light Weight, Portable apex locator (5th generation) , 97.7% accuracy for detemining the apex, LCD screen with clear display, Easy to use apex locator, Equipped with clear bright screen clear image and different color indicate the trajectory of the file clearly. Based on advanced multiple frequency network impedance measurement technology and automatic calibrating ensures the measurements are accurate. Autoclavable file clip, file hook, file probe. Prevents cross contamination effectively. When doing the measurement, the beep alert can indicate the position of the file in the root-canal.