Fog Pass device

Fog pass device is a hand held that aids rail transport during foggy conditions such as those experienced in north India. It is a portable device that provides warning in form of audio and visual alerts based on global positioning system (GPS). It raises an alert whenever any landmark, such as signals, stations, warning boards, level crossing gates or whistle for level crossing boards come within the geo-fence range. Till date 12,742 fog pass devices have been distributed to loco pilots of the Indian railways.