With two levels of accuracy (0.4mm/1.0mm), Topcon's DL-101C and DL-102C Digital Levels increase speed, accuracy and productivity in the field. Both levels store data internally or to a memory card through the standard PCMCIA slot. The internal memory is 256K and up to 8,000 points can be stored in memory. A data collector can also be connected to the DL Series RS232 port for differential leveling. Processing software that includes a high precision least squares adjustment routine is also available. Enhanced features of the DL series software include Inverted Rod Readings, Compatibility with STAR * LEVEL Software and User Defined Point Numbers.