This is a drop-in replacement dual color LED display compatible with HP / Agilent / Keysight 34401A multimeters LED color: Cyan and White Includes: Assembled LED Board Step-by-Step Display Replacement Instructions Ensure you have the ability to desolder a 34-pin VFD display and solder the LED display board. You can also cut all the old display pins, remove the body, then desolder each pin individually and clean the holes using a solder wick. Please see all the photos in the listing and read the description to make sure of what you are buying. Any questions, please ask before buying. Warranty: If any issue occurs within a year, just return it, and we’ll provide an exchange or a refund. Please don't remove any stickers during warranty period. The display board, front panel and HP 34401A DMM are not included. This item will be well packaged.