Honeywell Ademco 35 X40 Petimmne Pir Motion Sensor 5890PI Burglar Wireless Pir. The convenience of wireless systems extends to include pet immunity with the 5890PI. Using Split Zone Optics technology, the 5890PI ignores pets and other animals up to 40lbs., while continuing to detect even crawling intruders. Features The Honeywell Edge 35 x 45 (10.6m x13.7m) coverage pattern Immune to pets up to 40lbs. Split-Zone Optics technology Compatible with all 5800 series Wireless devices Up to five year battery life