Garmin sell these beacon devices, which can be used to either check in with relatives, or to summon help to their location.
They’re expensive, and intended more for people heading into remote areas, but might give you both some peace of mind, without tracking his every move.
Garmin sell these beacon devices, which can be used to either check in with relatives, or to summon help to their location.
They’re expensive, and intended more for people heading into remote areas, but might give you both some peace of mind, without tracking his every move.