It is applicable to the clinical electrocardiographic inspect and dynamic & static electrocardiographic monitoring of patients suffering from heart disease in the hospital, and can be used with various types of monitoring instruments. It uses Ag/AgCl as sensing element and hydrogel as adhesive element. Those elements are very suitable for improving their sensitivities. hydrogel has an advantage of minimizing the movement artifact by increasing the adhesive force between the skin and the sensing element. Characteristics: Superior electrical performance, convenient, comfort, no allergic, no remainder. Non-dry up electric conduction gel can be stored for a long time.