An HDX PIT tag is covered and revealed at timed intervals that are adjustable between 1 and 30 minutes. Any gaps in the detection record will indicate a failure of the reader, antenna or power source.
The circuit runs up to a year on 3 AA batteries. Lithium cells recommended for operation at low temperatures.
The enclosure is NEMA 4 and will seal against wet weather but is not waterproof enough to be mounted underwater. The Marker Tag should be placed in a waterproof bag or a wrap of vinyl electrical tape needs to be placed around the edge to seal the box.
The Marker Tag will not work with FDX tags.