Exercise-ECG with maximum freedom. The CARDIOVIT CS-200 Office is designed for use in the physician’s office. The powerful combination of the MS-12 blue, a wireless Bluetooth 12-channel ECG amplifier, and the SDS-200 Office software provides more freedom to operate in any environment, even in confined spaces. CARDIOVIT CS-200 Office is also available with MS-12 USB (USB connection) instead of MS-12 blue (Bluetooth).