GM SERIES Geodetic Measurement (GM) Total Station Manual total station Waterproof/dustproof manual total station (IP66) 6,000m/1,000m prism/non-prism range Long battery life (20+ hours) Sign in or sign up for myTopcon to view this page: Sign In Sign Up RELATED PRODUCTS FC-500 Field Controller Topcon Field LEGACY MAGNET Survey Topcon Tools Topcon Enterprise TSshield