Offers proven apex location technology in a compact design. Clear LCD is easy to read. Offers 3 programmable memory settings. Provides a highly accurate indication of the file’s location. Accuracy of the reading is not affected by the presence or absence of blood, other discharges, electrolytes, saline, tap water, or hydrogen peroxide. It is not necessary to set the device on zero before measuring each individual canal. Automatic calibration ensures accuracy and eliminates the effect of changes in temperature and moisture inside the canal, even during the treatment. 1-year warranty.Dimensions: 2-1/3" x 4"