Critical care around the world has seen a remarkable impact from the growing usage of mobile and smart devices in the health sector. With the use of these technologies, medical professionals and specialists are able to significantly alter the provision of medication in clinical settings. The Internet of Things is making it possible to connect devices that can connect to the Internet, monitor patient health, and send data to medical professionals on a continual basis. Today's world's biggest issue is health monitoring. A patient's major health problems are caused by inadequate health monitoring. Many Internet of Things (IoT) gadgets are available nowadays to track a patient's health online. Medical professionals are using these smart devices to monitor their patients as well. IoT is quickly changing the healthcare sector, as evidenced by the plethora of new healthcare technology start-ups. Our project involves creating an Internet of Things (IoT)-based health monitoring system that monitors a patient's heart rate, body temperature, respiration, spo2 levels, and electrocardiogram (ECG). The system will also send out an alert when any of these measurements exceed crucial limits. Values are transmitted using GSM.