(Cultural) probes have been used in various software design projects and HCI contexts over the last years. With the ubiquity of smartphones today, there are new ways to design probes material as digital probes. Smartphones allow to document everyday life in situ in mobile contexts and provide a permanent channel for communication between researchers and participants. Based on an analysis of strengths and weaknesses of traditional probes, we propose a concept for a Digital Probes Kit in the form of a digital diary and describe its potential.