The Mitutoyo 500-445 Absolute Digital Solar Caliper has a measuring range of 0-200mm with 0.01mm resolution. Includes SPC data output. Equipped with a hard-coated solar panel for safe operation and thumb roller. Retains its origin point for the entire life of the caliper, even when the display is turned off. At 60 Lux and up the Absolute Solar Caliper is ready to start measurement from the moment its turned on. Therefore, no more repeated zero setting caused by shortage of light intensity. Solar powereda Hardened stainless steel construction with 4 way measurement, OD, ID, depth, step Origin Set Supplied in fitted plastic case SPC Data Output Range: 0-200mm Resolution: 0.01mm Type: Solar Power Site Sort 120 Accuracy: +/- 0.02mm