Photo 1 of HAKINAKU 5IN1 Plug in Smoke & Carbon Monoxide Detector & Combustible Natural Gas Combination Builti-in Backup Battery HD Screen [Smoke CO Gas Temp Humidity Sensor] for Home Hotel RV (1-Pcs, Black)

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Photo 1 of HAKINAKU 5IN1 Plug in Smoke & Carbon Monoxide Detector & Combustible Natural Gas Combination Builti-in Backup Battery HD Screen [Smoke CO Gas Temp Humidity Sensor] for Home Hotel RV (1-Pcs, Black)Photo 2 of HAKINAKU 5IN1 Plug in Smoke & Carbon Monoxide Detector & Combustible Natural Gas Combination Builti-in Backup Battery HD Screen [Smoke CO Gas Temp Humidity Sensor] for Home Hotel RV (1-Pcs, Black)