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Model EWD-271 High-frequency Induced Magnetic Field Detector (Radio Wave Sensor) | Radio Wave Sensor | Amusement | Product information | SENSATEC Co., Ltd.
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Radio with Motion Sensor 360° Sensor Diameter 95 mm Battery 3 x AA Mounting on Wall and Ceiling White : Amazon.de: DIY & Tools
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Buy MANYCAST Wireless (Radio Frequency 433 MHz, not wifi) PIR Motion Sensor, Works In Pair With Avance Dual Band Alarm System Control Panel Only. Does Not Work With WIFI On Standalone Basis.
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Remote Sensor Monitoring by Radio with Arduino: Detecting Intruders, Fires, Flammable and Toxic Gases, and Other Hazards at a Distance, Leithauser, David, eBook - Amazon.com
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