Features: - Utilizing the ratio technique, S-Apex provides a highly accurate indication of the file’s location. - The accuracy of the measurement is not affected by the presence or absence of blood, other discharges, electrolytes, saline, tap water, or hydrogen peroxide. No zero adjustment: - It is not necessary to set the device on zero before measuring each individual canal. Automatic calibration: - Automatic calibration ensures accuracy and eliminates the effect of changes in temperature, moisture, etc. inside the canal, even during the treatment. Color liquid crystal display: - The color liquid crystal display is easy to read, providing a clear progressive display and high contrast.