inputs.text: expexted - purchased garmin use job gps usually not shine brightly testing environment gps systehems always contradict one another makes job incredibly hard key location absolutely necessarythree guys exact garmin vary less three meters stand position worst using 401 month no issues everything would ask morefor rely mils rather degrees surprised consistent accurate 401 not know mil may not need something caliber not meant insulting levelimmediately box men threw away destructions directions still managed get calibrated liking 4 minutes walked around desolate areas work still managed get great resultswith use altimeter able get solid location map heard others using altimeter method map get general idea location never done altimeter seehems accurate nearest 30 ft roughly 9 meters exactly needso far floored well done everything use almost daily strongly recommend experienced outdoorsman military personnel