What type of device can help in detecting mines?

A mine detector is specifically designed for detecting mines, including both anti-personnel and anti-vehicle types. These devices work by utilizing various technologies, such as electromagnetic fields or ground-penetrating radar, to identify the presence of explosive materials in the ground. The effectiveness of a mine detector lies in its ability to differentiate between benign objects and potential threats, which is crucial for ensuring the safety of personnel in areas known or suspected to contain landmines.

While other devices listed can play roles in specific contexts or indirect support, they do not serve the primary function of mine detection. For instance, a pressure gauge measures pressure but has no relevance to mine detection. A probing rod can help to investigate the ground but does not have the sensitivity or technology required to detect buried mines effectively. A Geiger counter is used to detect radiation and is unrelated to mine detection. Thus, the mine detector stands out as the specialized tool most suited for this critical task.