What type of radiation devices are prone to error due to environmental conditions?

Film badges are sensitive to environmental conditions due to their reliance on photographic film to detect ionizing radiation exposure. They must be stored and used under specific conditions to avoid exposure from non-radiation sources, such as light or moisture, which can cause fogging or overexposure. Factors like temperature and humidity can also affect the film's sensitivity and ability to accurately record radiation levels.

The other devices listed have different methodologies or designs that make them less susceptible to these environmental factors. For instance, Geiger counters, survey instruments, and pocket dosimeters typically use electronic components and solid-state detectors that are less influenced by ambient environmental conditions. Therefore, while film badges are valuable for monitoring cumulative radiation exposure over time, they require careful handling and storage to ensure their accuracy in varying environmental conditions.