Photo 1 of Pildegro 3-in-1 Portable Carbon Monoxide Detector, Professional Rechargeable Real-Time Travel CO Monitor 140HR Standby, Premium Reliable CO Detector with Loud Alarm for Air Safety (Grey/Courage)

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Photo 1 of Pildegro 3-in-1 Portable Carbon Monoxide Detector, Professional Rechargeable Real-Time Travel CO Monitor 140HR Standby, Premium Reliable CO Detector with Loud Alarm for Air Safety (Grey/Courage)Photo 2 of Pildegro 3-in-1 Portable Carbon Monoxide Detector, Professional Rechargeable Real-Time Travel CO Monitor 140HR Standby, Premium Reliable CO Detector with Loud Alarm for Air Safety (Grey/Courage)