Using Impulse Radio Ultra-Wide Band Radar Technology (IR-UWB RADAR), the sensor emits 10 million impulses per second in an area of up to 10 square meters. The sensor looks for micro vibrations and objects. If the person being monitored has fallen down, the sensor will be activated through the ToF and start to search for vital signs on the ground. The sensor will confirm if it can detect 3 vital signs – heart rate, breathing rate and movement. When any one of the vital signs is not detected, the sensor will send out a real-time push alert to a designated responder via a smart phone or a wearable device to call for immediate action.