Dual Pex is a robust and easy-to-use electronic apex locator. The 4-frequencies technology lets Dual Pex estimate the working length when used in stand-alone mode or monitor the position of the file inside the root canal when used in combination with the Dual Move cordless endo motor, whatever the battery level and the conditions in the explored root canal (wet or dry environment, no continuous close contact between the file and the canal’s walls…).