GPSMAP 64sc SiteSurvey handheld navigator features a 3-axis tilt-compensated compass, barometric altimeter and 8 megapixel autofocus camera that automatically geotags photos with coordinates. GPSMAP 64sc SiteSurvey also features a 2.6-inch sunlight-readable color screen and a high-sensitivity GPS and GLONASS receiver with a quad helix antenna for superior reception that can work with Garmin SiteSurvey PC software tool seamlessly for your professional survey.