Photo 1 of HAKINAKU 3in1 Plug in Carbon Monoxide Detectors Built-in Rechargeable Backup Battery Plug&Play CO Temp Humidity with 2.1'' HD Screen & Indicator 85dB Alarm for Home Hotel RV (1-Pack, White)

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Photo 1 of HAKINAKU 3in1 Plug in Carbon Monoxide Detectors Built-in Rechargeable Backup Battery Plug&Play CO Temp Humidity with 2.1'' HD Screen & Indicator 85dB Alarm for Home Hotel RV (1-Pack, White)Photo 2 of HAKINAKU 3in1 Plug in Carbon Monoxide Detectors Built-in Rechargeable Backup Battery Plug&Play CO Temp Humidity with 2.1'' HD Screen & Indicator 85dB Alarm for Home Hotel RV (1-Pack, White)