Argus: Filters, Screw and Ring

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. [caption id="attachment_92" align="alignleft" width="444"] Argus: Filters, Screw and Ring[/caption] The Argus is no longer manufactured, but ChutingStar still stocks some replacement parts. See the listings at this link for Argus parts still available from ChutingStar.