Flux sensor

The flux sensor is a quest item in Fallout 4 that can be returned to Scribe Haylen for caps.

Characteristics
A piece of technical hardware.

Locations
This item can spawn at various locations once the quest Quartermastery is accepted from Scribe Haylen, a map location and quest marker will be added to the area it has spawned. These include:

Behind the scenes
On the back the device is identified as "FLUX SENSOR CM-88B 180924609". This is a rather obscure reference to the movie Alien, specifically the central vessel the movie takes place on, the USCSS Nostromo - the CM-88B refers to the ship's model; the 180924609 refers to the ship's registration number.