The Endo Analyzer is both an endodontic pulp vitality tester and electronic apex locator from Analytic Sybron Dental Specialties. It provides pulp testing that is pain-free and has consistent, microprocessor control. The apex locator function is advertised to accurately locate the apical foramen. The unit can be used in the presence of sodium hypochlorite, anesthetic solutions, alcohol, EDTA, RC Prep, blood, purulence, and other liquids as well as in the presence of necrotic tissue.