Discount cardiology is one of the largest distributors of EKG or ECG machines, defibrillators, holter systems, spirometers, pulse oximeters, and treadmill systems. We are also a premier one stop shop for all your cardiology supply needs, such as electrodes, chart paper, thermal paper, patient cables, defibrillator pads, and more. Discount Cardiology also provides medical equipment repair services for out-of-warranty equipment. Please call our toll-free number for assistance with all your cardiology needs. 1-800-507-8244.