The abundant medical suggestions and journals from all different sources are sometimes hard to follow as well. HomeGuardian-19 has developed a Self-checklist to solve these problems. The Self-checklist was developed based on care guidelines and clinical journal recommendations. The checklist is easy to use and understand. By tracking the sign of sickness symptoms, monitoring the status of the urgent symptoms, you can seek out professional medical care as soon as possible. -Health data monitor (with devices connection capability) Changing of health data (body temperature, etc.) can be a warning of the body condition. The tool lists out the most important health data to monitor. For example, monitor SpO2 can help you to detect the early sign of silent hypoxia and ask for medical treatment on time and prevent more complications caused by delayed treatment. The HomeGuardian-19 app can help you to connect different physiological measurement devices (oximeter, thermometer, etc...) and record the health metric automatically without manual input. -Health record trend chart HomeGuardian-19 provides a visualized, easy-to-follow trend chart based on the user-input data and devices recordings. The visualized chart helps you to stay on top of your health status and to discover new-onset problems should one arise. We also integrate the measurement into Apple's health management App---Health App to guard your health along with Apple. At this unprecedented time, we are here to help, and we can all overcome the storm together. Stay healthy. For more information about our app, please go to our website at:http://www.manifoldhealthtech.com/solutions.html Or follow our FB for more latest and useful information about protecting yourself: https://www.facebook.com/HomeGuardian-19-101896888460009/