This Weaver NuPrep Skin Prep Gel effectively lowers impedance to improve your tracings. Its mild abrasive formula improves conductivity and helps achieve maximum efficiency with your equipment. A single tube of Nuprep gel saves valuable time and money for the patient and technologist/technician. Most Effective Uses: Audiology, cardiac catheter monitoring, cardiac rehabilitation monitoring, ECG telemetry, EEG exams, evoked potential procedures, Holter monitoring, sleep tests, stress tests, etc