| Signs Under Test | |
| Type: | Studio |
| Artist: | John Tejada |
| Cover: | Signs Under Test.jpg |
| Genre: | Techno, Tech House |
| Length: | 58:09 |
| Label: | Kompakt |
| Prev Title: | The Predicting Machine |
| Prev Year: | 2012 |
| Next Title: | Dead Start Program |
| Next Year: | 2018 |
Signs Under Test is the tenth full-length release for the California-based techno DJ/producer John Tejada. It was released on February 2, 2015 on Kompakt.