RX-40PI rejects false alarms caused by spot temperature changes such as small to medium sized animals, air conditioners, or moving curtains. Utilizing Quad Zone Logic, the RX-40PI couples signals from its 78 detection zones to determine the size of its target. Its high quality Spherical Lens and its dense detection pattern give the RX-40PI Catch and Pet Immunity that is superior to other single technology detectors. RX-40PI also has an insect shield sealed housing and OPTEX's 5 year warranty.
