Patients in seclusion in mental health services require regular physical health assessments to identify, prevent and manage clinical deterioration. Sometimes it may be unsafe or counter-therapeutic for clinical staff to enter the seclusion room, making it challenging to meet local seclusion standards for physical assessments. Alternatives to standard clinical assessment models are required in such circumstances to assure high quality and safe care. The primary aim of this study was to improve the quality of physical health monitoring by making accurate vital sign measurements more frequently available. It also aimed to explore the clinical experience of integrating a technological innovation with routine clinical care. The results showed that the non-contact monitoring device enabled a 12 fold increase overall in the monitoring of physical health observations when compared to a real-world baseline rate of checks. Enhancement to standard clinical care varied according to patient movement levels. Patients, carers and staff expressed positive views towards the integration of the technological intervention.