The Actiwave Cardio is a waterproof ultra-miniature single channel ECG waveform recorder. It consists of two electrodes connected by a short lead which simply clip onto two standard ECG pads worn on the chest. It also contains a tri-axial accelerometer, the signal from which allows the user to determine resting body position. For a single channel 24 hour holter recording the Actiwave Cardio gives unsurpassable wearability. The very small size allows for continuous monitoring in a wide range of patients and applications. Important note on using the Actiwave Cardio Viewer Software Please note that whilst it is possible to view files using the Cardio Viewer Software, it is essential that the Actiwave Control Software is also installed on the host PC if the user wishes to setup and download the Cardio. Key Features - Record a full single channel ECG Waveform for up to 31 hours - Simultaneously record 3-axes of acceleration - Combine heart rate and activity to calculate energy expenditure - validated against Doubly Labeled Water - Use acceleration data to record body position - Non-invasive technology - Compact and lightweight - Non-volatile memory - Rechargeable