3-in-1 Portable Carbon Monoxide Detector, Professional Accurate Rechargeable Travel CO Detector with Loud Alarm

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0.5W Frequency Modulation Emitter 76-108Mhz 500mW Stereo Transmitting Device Type-C Interface with 2000M Transmission Distance

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0.5W Frequency Modulation Emitter 76-108Mhz 500mW Stereo Transmitting Device Type-C Interface with 2000M Transmission Distance

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