请与是德联系，了解选项定价。
| R-50C-011-3 | Calibration Plan - Return to Keysight - 3 years |
| R-50C-011-5 | Calibration Plan - Return to Keysight - 5 years |
| R-50C-011-MU-3 | Keysight Calibration + Uncertainties - 3 years |
| R-50C-011-MU-5 | Keysight Calibration + Uncertainties - 5 years |
| R-50C-021-3 | ANSI Z540-1-1994 Calibration - 3 years |
| R-50C-021-5 | ANSI Z540-1-1994 Calibration - 5 years |
| R-51B-001-5Z | Extended Warranty - Return to Keysight - 5 years |
请与是德联系，了解选项定价。
