The Lone Worker feature is available for all portable and mobile models, and in analogue and digital modes. This feature is useful for radio user who is operating machinery, carrying out a security patrol or working in a plant alone. The Lone Worker feature provides a way to remotely monitor, if a user has stopped activity or is incapacitated in some way.
The Lone Worker feature is essentially a predefined timer reset with user activity. For example, if the activity timer is set for 10 minutes and the user has no interaction with the radio during this time, the inactivity timer expires and a pre-warning tone sounds immediately after 10 minutes. If the user fails to reset the timer by an interaction with the radio (such as a button press, PTT, volume knob turn, and others), the radio initiates Emergency.