The FOGLight (Fall Of Ground) indicator is an early warning device designed to detect and warn mining crews of separation in the rock above, helping to prevent losses and providing a safer work environment underground. The FOGLight is simple to install and manufactured from tough materials.
The Dual Mode FOGLight includes the LED functionality of the standard version but includes a second and independent mechanically activated trigger. The Dual FOGLight is manufactured with a reflective green assembly around the housing of the FOGLight which is designed to disengage from the FOGLight and fall away at the pre-set trigger displacement. This then exposes the housing of the FOGLight which is in reflective Amber and provides a distinct visual warning that the unit has detected excessive hanging wall movement. The Dual FOGLight is suited to excavations with a longer life span as the mechanical system provides a fail-safe in the event that the batteries powering the LED system should drain.