What is a key characteristic of dual frequency detection sensors?

A key characteristic of dual frequency detection sensors is that they must detect signals from different frequency ranges. These sensors utilize multiple frequency signals to improve detection capabilities and reduce false alarms. By monitoring different frequencies, they can achieve a more accurate assessment of potential intrusions or disturbances, thus enhancing the overall effectiveness of the security system.

This approach allows for more reliable differentiation between legitimate movements and innocuous activities, as each frequency may respond differently to various types of interference or intrusion attempts. Consequently, dual frequency sensors can provide a robust solution for detecting unauthorized access or breaches across various environments.