The Philips M2601B Telemetry Option S03 is designed for flexibility, featuring ECG capabilities along with optional upgradable SpO2 parameters. This telemetry system operates in both the 406-480 MHz frequency range (for international use) and the 590-614 MHz range (for U.S. use). It supports 3, 5, and 12 ECG readings, making it adaptable for various monitoring needs. Additionally, by integrating TelemonB or TelemonC, it provides access to non-invasive blood pressure (NIBP) measurements.