LSCM has developed a monitoring system to measure the activity levels of the elderly and detect any abnormal conditions by using state-of-the-art ultra-wideband (UWB) and signal processing technologies. The users do not need to wear any device, the UWB radars installed in the system use sub-cm-order time-of-flight information to determine their breathing rate and track their location. The data collected can also be analysed to provide activity-tracker style measurements of sleep duration and daily activity levels. Daily activity goals can thus be recommended to encourage users to exercise and improve sleep quality. This low-cost and privacy-preserving system provides real-time feedback to help caretakers provide efficient remote monitoring service for the elderly.