Nemo is a unique wireless motion sensor with multiple functions in one product. With user-friendly design & easy installation, it can be easily placed where it is most needed. ** Nemo motion sensor can be set in different modes for different applications & can, for example, function as:** Bed monitor to send information when a person leaves the bed. Movement monitor to send information when a person has been inactive, such as not visiting the kitchen for 24 hours. Presence sensor linked to a door alarm, offering automatic reset & door alarm monitoring, for example to detect a user with dementia walking through an exit door. Door Alarm Important note: This sensor is only compatible with Care Tech Carephones.