An observation unit (OU) and auxiliary observation unit (AOU) sensor are calibrated in relation to an ambient environment. The OU sensor and the AOU sensor are calibrated in relation to an observational subject. Monitoring parameters are established for the calibrated sensors using a receiving unit (RU). Monitoring types are activated using the RU. Data is gathered from the OU sensor and the AOU sensor. A determination is made that the gathered data exceeds the established monitoring parameters. One or more alerts are generated based on the determination.