... ) 2, Accuracy: +/-1.5mm (0.06 in) 3, USB conection 4, 1000 data store and recall Features :1, Anti ... interface5, Storage of the last 1000 historical data 6, USB conection with PC, and export data Functional SpecGM100DUTypical easuring ... mAh Up to 4000 measuremetAuto. laser switch-offafter 0.5 minAuto instrument switch-offafter 3 minDimension125x55x30.7mmWeight106g Laser Distance Meter GM100DU(100M)