When you hear the word ADT pet immunity, a feature in ADT security systems that ignores movements from pets under a certain weight while still detecting human intruders. It’s not magic—it’s smart motion detection tuned to your home’s real threats. Most alarm systems trigger on anything that moves: a swinging curtain, a bouncing ball, or your dog trotting past the sensor. But pet-friendly alarms, security systems designed to distinguish between pets and people using weight thresholds, motion patterns, and AI filtering solve that problem. With ADT pet immunity, a proprietary feature in ADT systems that uses dual-technology sensors to ignore animals under 40 pounds, your golden retriever can nap on the rug and your cat can leap onto the couch without turning your alarm into a siren show.
It’s not just about avoiding noise. False alarms cost homeowners time, stress, and even money—some insurers penalize homes with too many false triggers. A pet immune alarm system, a security setup that filters out pet-related motion to reduce false alerts doesn’t just keep your peace of mind intact—it makes your whole system more reliable. That’s why ADT’s system pairs motion sensors with infrared heat detection: it doesn’t just see movement, it sees body heat. A dog’s body heat is spread differently than a human’s, and the system knows the difference. This isn’t guesswork. It’s engineering built on data from thousands of real homes with pets.
You don’t need to choose between safety and your furry family. Whether you’ve got a small terrier or a big Labrador, ADT’s pet immunity adjusts to your pet’s size and habits. And if you’ve tried other systems that still went off when your cat jumped on the counter, you know why this matters. The best false alarm prevention, techniques and technologies that reduce unnecessary alarm triggers caused by pets, wind, or household activity doesn’t just block pets—it learns your home. That’s why ADT leads in this space: they don’t just sell alarms, they build systems that adapt to real life.
Below, you’ll find real breakdowns of how these systems work, what other brands offer, why some pet alarms still fail, and how to make sure yours actually does what it promises. No fluff. No hype. Just what you need to know to keep your home secure—and your dog quiet.
ADT's pet-immune alarms can ignore dogs up to 80 pounds-but only if sensors are installed correctly. Learn how weight, height, and breed affect false alarms-and what to do if your dog still triggers the system.