If you have pets at home, it may so happen quite frequently that your pet tripped the alarm system. Therefore, install a pet friendly system which can easily identify the difference between your pet and an intruder and can reduce the risk of false alarms. Passive Infrared detectors or PIR detectors are able to distinguish between humans and animals due to the difference in shape and size of the and it in turn allows your pets to move freely inside the house or in the property.
Depending on the size of your pet, we can suggest you the type of pet friendly sensor that would serve your purpose. If you a have a small dog or a cat, a normal motion detector can also be installed upside down, about four feet above the ground. The range of a normal motion detector goes straight and then down which can detect humans, but if installed upside down, it goes straight and then up which cannot detect small pets.