- Written by Mike Gruwell
One filter is located on the inside on the battery back plate. A second filter can be installed on the outside of the battery back plate for swoopers who may get the unit wet on a regular basis. To replace the filter, pick the old filter off and stick the new filter on. The filter or filters must be replaced after getting wet and/or damaged. Once a filter is removed, it can not be used again.
The closing screw is a small Phillips head screw that secures the back plate to the Argus unit. It should be snug/hand tight.
The Sealing Rig is a rubber ring that surrounds the battery back plate. It must be installed when closing the unit.