**HAS WRONG KIND OF BATTERIES INSERTED** 6 Packs, 2 in 1,Smoke Carbon Monoxide Detector,Carbon Monoxide Detectors/Smoke Alarm,85 dB Alarm,Large Screen Readout,Test Button,Battery Operated, Work State LED Flash,Easy Install

Additional Details from the Manufacturer

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More features

• Comprehensive Protection: This smoke & carbon monoxide alarms combine the power of two important safety features in one device to protect your family from both smoke and carbon monoxide dangers
• Reliable Sensor Technology: With photoelectric and electrochemical sensors, this smoke detector carbon monoxide detector combo ensures fast and reliable detection of smoke and CO
• Visual and Audible Alerts: Featuring 3-color LED indicators and an 85 dB alarm, this detector ensures you’re immediately alerted to potential dangers
• Easy-to-Use and Maintain: The simple design allows for quick installation and minimal maintenance, ensuring continuous protection with ease
• Ideal for Home and Office: Whether at home or in the office, this carbon monoxide detectors/smoke alarm provides dependable protection from smoke and CO risks