What technology allows a detector to differentiate between a human and a pet?

Pet-immune technology in PIR (Passive Infrared) sensors is specifically designed to differentiate between human movement and that of pets or small animals. This is achieved by utilizing advanced algorithms and physical design modifications within the sensor.

PIR sensors detect infrared radiation emitted from objects in their field of view; human bodies emit a certain level of infrared radiation that is different in scale and frequency compared to that of pets. Pet-immune technology calibrates the sensor to ignore signals below a certain threshold, which is calibrated to the size and heat signature typically generated by smaller animals, such as cats or dogs. This effectively minimizes false alarms caused by pets while still ensuring that human intrusions are accurately detected.

This technology provides an enhanced level of functionality for home security systems, allowing pet owners to maintain their comfort while ensuring the security system is effective against human intruders.