Photo 1 of Pildegro 4-in-1 Portable Carbon Monoxide and Carbon Dioxide Detector, Upgraded Rechargeable Travel CO & CO2 Monitor 3-Day Standby, Premium Real-Time CO & CO2 Alarm for Air Safety & Quality (Orange)

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Photo 1 of Pildegro 4-in-1 Portable Carbon Monoxide and Carbon Dioxide Detector, Upgraded Rechargeable Travel CO & CO2 Monitor 3-Day Standby, Premium Real-Time CO & CO2 Alarm for Air Safety & Quality (Orange)Photo 2 of Pildegro 4-in-1 Portable Carbon Monoxide and Carbon Dioxide Detector, Upgraded Rechargeable Travel CO & CO2 Monitor 3-Day Standby, Premium Real-Time CO & CO2 Alarm for Air Safety & Quality (Orange)