digital level DL202 1, has the task to replace the traditional optical level market. 2,high precision 1mm 3,muil-function digital level DL202 DL-202height accuracy (standard deviation for 1km double run leveling)digital reading1.5mmoptic reading2.0mmdistance accuracydigital readingD≤10m:10mm;D>10m:D*0.001distance rangedigital reading1.5m~100mminimum displayHD1mm/0.5mmdistance0.1/1cmmeasuring time ...