... Accuracy: +/-1.5mm (0.06 in) 3, USB conection 4, 1000 data store and recall Features :1, ... inches color screen3, Continuous measurement with Min/Max distance tracking & update 3 data per second4, Interaction ... Storage of the last 1000 historical data 6, USB conection with PC, and export data Functional SpecGM100DUTypical ... offafter 3 minDimension125x55x30.7mmWeight106g Laser Distance Meter GM100DU(100M)