The Cardio2Go™ handheld EKG device reads a modified lead I rhythm anywhere instantly using patented dry-thumb receptors or wrist electrodes. Get on-the-spot 30-second analysis of: Heart rate, QRS duration, ST elevation/depression. Now, you can identify heart arrhythmias before fatal rhythms occur. The Cardio2Go™ handheld EKG records 30 seconds of modified EKG signal for each measurement. Vivid LCD screen instantly displays three parameter measurements: heart rate (HR), ST segment and QRS interval. Get additional PR and QT/QTc analysis by simply downloading results to a laptop using software and USB cable provided. The EKG can then be emailed for emergency or specialized care - saving time and lives! Patented dry-thumb electrodes and handheld design make Cardio2Go™ ideal for firefighter rehab, HAZMAT and bike EMS. Cardio2Go™ comes with a padded Velcro cover, durable Pelican carrying case.