This part is not in the game
This part was removed in a recent update, and is no longer in the game.
The Probe (Large) was a large variant of the Probe, functioning identically to it. The only difference between the two is their sizes and torques; the smaller one has a width of four units with two kilonewton torque, but the larger was six units wide and had twice the torque.
The large probe was usually used on rockets built with large parts with widths larger or equal to six units, as the old adapter–probe combination may take up too much space and mass, and will possibly cause adverse aerodynamic effects.
Trivia[]

The Large Probe's blank faceplate.
- Unlike the smaller counterpart, the large probe had only shaded shapes but not writing "Made on Earth by humans" on it.
- After the backlash of No Probe 1.4, the large probe is removed from the user interface, and from that point it could only be added to a rocket via blueprint editing, by changing the name of a random part to
Big Probe
. In 1.5, it was completely removed from the game, and the best way to replicate it was to change the probe'swidth
value to 3.0. - At the time when the large probe went unused, blueprint editing was impossible in the iOS version. The only way to have it was the 1.4 in the Android version.
- If the large probe is in a 1.4 blueprint and is upgraded into a 1.5 blueprint, then the large probe will be converted into a widened version of a normal probe. This only works up to 1.5.4. However, the ability to add 1.4 .bp files was removed in the 1.5.5 update, rendering the .bp files useless.