The Lifecard CF recorder can check on Holter readouts and also uses a 12-bit resolution system to ensure that all Holter recordings are accurate. It can record seven days of ECG readouts without stopping and can record this data onto removable CompactFlash cards. These cards can be moved into different devices to make the data recording and analysis process a snap. The Lifecard CF uses three electrodes and three channels to make it easy to hook a patient up to it. It is waterproof and capable of resisting many forms of pressure. All ECG traces are listed in the hook-up process. Pacing spikes will also be visible so you'll know where to place the leads as needed.