PYROELECTRIC TYPE INFRARED RAY DEER SCARER

摘要

PURPOSE: To prevent a deer from invading into fields. ;CONSTITUTION: This deer scarer is constructed of a pyroelectric type infrared ray sensor, a band-pass filter, a sound synthesizing and reproducing part 12, an amplifier 2 and a speaker 1 and capable of sensing infrared rays emitted from the deer and alternately producing howling and barking of a wolf and a dog which are natural enemies to the deer, an alarm cry of the deer, a metallic sound, etc.;COPYRIGHT: (C)1994,JPO&Japio