As a minimum, your loan worker solution must have the capacity to detect non-movement and/or irregular movement where a distress situation may be happening. This capability provides the worker with a sense of safety and peace of mind knowing no matter what happens they are supported. This also helps meet your duty of care and any OH&S requirements in the workplace.
Your loan worker solution should also have the intelligence and features to stop any false positives, and provide the worker a chance to rectify any false alerts, reducing any costs associated with attending an incident.