Pet Immune Motion Sensors

In this video, Jarrett discusses pet immune motion sensors and their applications. Pet immune motion sensors are made to only detect movement in the areas where a human would walk upright. They ignore movement in the areas close to the ground where small animals move. Weight limits must be observed.

Most pet immune motion detectors work using passive infrared (PIR) technology. This involves looking for changes in infrared (IR) energy that occur with movement. Every person, animal, and object gives off a very small amount of IR energy. A PIR motion sensor will detect the change in IR energy that occurs when the person, animal, or object comes into its field of view (FOV). The only thing special about a pet immune motion sensor is that it will not be looking in the areas close to the ground where a pet would be walking.

This does not mean that it is impossible for a pet to set off a pet immune motion sensor. If the animal manages to get in the sensor's FOV, then it can certainly activate it. That is why it is important to avoid placing your pet immune motion sensor towards furniture or stairwells. If your pet climbs on top of the furniture or the stairs, they would be able to get in the sensor's field of view and activate the sensor.

Additionally, you should make sure to observe the weight limits for pet immune motion sensors. Most pet immune motion sensors will have a recommended weight limit of the small animals which they will ignore. This doesn't necessarily mean that pets under the recommended weight limit can never activate the motion sensor. It just means that pets above the recommended weight limit should be expected to set off the motion detector when they walk by. Make sure you choose a motion sensor that offers a greater weight limit than the weight of your largest pet.

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