What is the UL standard for intrusion detectors?

The UL standard for intrusion detectors is 639. This standard outlines the requirements for the performance, reliability, and testing of various intrusion detection systems. It serves as a guideline to ensure that intrusion detectors meet specific safety and functionality criteria, helping protect properties from unauthorized entry. The inclusion of rigorous testing protocols within this standard means that devices adhering to UL 639 are subjected to comprehensive evaluations to ensure that they effectively detect unauthorized access while minimizing false alarm rates. This enhances the overall reliability of security systems in protecting homes and businesses.

The other standards listed, while important in their own domains, do not specifically pertain to intrusion detectors.