What should users of radiation detection devices regularly check to ensure proper function?

Regularly checking the battery levels is vital for the proper functioning of radiation detection devices. These devices rely on power to operate accurate sensors and display readings. If the battery levels are low, the device may malfunction or provide inaccurate readings, which can lead to dangerous situations when monitoring radiation levels. Ensuring that the batteries are fully charged or replaced as needed guarantees that the device remains reliable and ready for use when required, maintaining safety standards for users and those around them.

The other aspects, while important in their own contexts, do not directly pertain to the core operational functionality of the radiation detection devices in the same immediate way as battery levels do. For instance, external temperature may affect performance but is significantly less crucial than ensuring adequate power. Manual calibration times are important for accuracy but not as frequently monitored as battery status. Lastly, packaging quality, while relevant for transport and storage, does not impact the device's function during operation. Thus, focusing on battery levels is essential for maintaining the reliability and effectiveness of radiation detection devices.