Small portable and easy to operate high resolution monochrome lcd display rapid ecg heart rate measurement by recording a 30 second ecg waveform measurement of one channel ecg anytime anywhere gain mode available for signal amplification analysis report display of 17 types of ecg waveform memory storage and review of up to 300 records expandable by using optional sd card up to 8gb ecg waveform heart rate display battery indicator lcd back light pc data management software for data tra