Pet immune motion detectors disregard the motion caused by animals weighing less than 80 pounds (in many instances). Most security system motion detectors use passive infrared (PIR) motion detector technology to monitor heat changes in a designated area.
With a traditional motion detector, when your pet enters the coverage area, a sensor is tripped and causes a false alarm. Pet immune motion detectors ignore the motion caused by animals and thus reduce the likelihood of a false alarm. Features vary by manufacturer and model, but can include selectable sensitivity for pets up to 40 pounds or those weighing up to 80 pounds and can be set to disregard one large pet, like a full-grown dog or several small pets, like cats.
SafeWise strongly encourages homeowners who have pets to invest in pet immune motion detectors.