What does “pet-resistant” mean for Shield motion sensors?

Motion detectors use infrared sensors to detect motion. They can't tell what causes the motion. All alarms achieve pet resistance (or call themselves "pet proof" by blocking motion signals lower than a certain angle, which creates a object-motion height threshold for alerts to go off.

Our pet resistance uses a angle-height combo that allows your pet (under 85lb) to walk around at floor level and not alert the motion sensor.

If you pet climbs stairs or gets on furniture, it will probably still set off the motion detector. This is why we use the term "pet resistant" rather than "pet proof."