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Personal security system with weighted receiver locations
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Pet immune intruder detection
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Security system with fall back to local control
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Security detector with optical data transmitter
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Security system transmitter with opposed concave actuators
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Security system with multi-function transmitter
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Wearable transmitter with optical tamper detection
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Wearable transmitter assembly
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Microwave intrusion detector with threshold adjustment in response to periodic signals
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Detection system with reduced sensitivity to pin diode effect
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