The LC-171 is a unique motion detector utilizing dual passive
infra-red elements and Microwave technology and is designed for
outdoor use in the most severe climatic conditions. The LC-171 can
also accommodate pets. High reliability is achieved by combining both
dual tech hardware with highly sophisticated software and an adaptive
coverage area, greatly reducing the possibility of false alarms. The
active elements are comprised of a dual element PIR and advanced
Microwave detector inside a stylish, rigid plastic body.