| http://www.w3.org/ns/prov#value | - The principle of the pir based on the body infrared ray.A Passive Infra-red Sensor is an electronic device that detects the motion or movement of some person or animal by sensing the heat emitted from ...Keyword : wireless detector | wired detector | infrared red detecto | passive red detector | body detector Shenzhen Sinda Technology Co., Ltd
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