... DTM312A, DTM312B, DTM315A, DTM315B, DTM322A, DTM322B, DTM325A, DTM325B suits the measurement with target and prism. Angle accuracies are 2", 3" and 5 ... , with absolute 0 index pointMinimum display1,5,10Accuracy2,5,10CompensatorTypeSingle axis liquid tilt sensorRange±3Accuracy±1Display resolutionAccording to angle display resolutionDistance measurement ...