Why do you want this upgrade?
Have you ever run out of filament during a print? Now you don’t have to worry! When you get the EZOut board and the filament sensor (add on above) you feed the filament through our sensor and when it runs out the printer will wait for you to load more filament into the printer so you can resume the print! Absolutely ZERO soldering required to install this.
Easily add a filament sensor to your compatible 3D printer (see list below) today! This is a full kit that includes all the cables, heatshrink (for the ezout board), firmware, and filament sensor. You will need to update your firmware which is included via download below. This kit connects to the J1 port on your Ender 3/3 Pro V4.2.2 control board.