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The Keysight 11683A range calibrator is specifically designed for use with the EPM, EPM-P series, E1416A and the discontinued 70100A and 435/6/7/8A power meters.. It allows verification of full-scale meter readings on all ranges, as well as meter tracking. Simply connect the cable between the power meter and calibrator. The CAL ADJ control on the power meter is used to set the meter to full scale on the 1 mW range.

| R-51B-001-Z | Return to Keysight Warranty - 3 years |
| R-51B-OC | Return to service center warranty and service plan |
| R1280A | Return to Keysight service center - warranty and service plan |
| W4100-3MW | Warranty, 3mth for included accessories |
| W4100-OC-INCACC | Standard Shipped Accessories Warranty |