6 Packs,2 in 1 Technology, Smoke,Carbon Monoxide Detector, Co Alarm,85db Alert,LCD Readout,3 Color LED Indication,(Green Light Blinking at Work), with 3 AA Batteries,Easy Install,for Home and KitchenBrand: ARIKON Features: Reliable Hazard Detection: This smoke and carbon monoxide detector detects both smoke and CO, offering protection from two dangerous threats with one device High Sensitivity Sensors: Featuring a photoelectric smoke sensor and electrochemical CO sensor, this smoke detector carbon monoxide detector combo ensures quick and accurate detection Clear Visual and Audible Alerts: This detector uses both LED indicators and an 85 dB alarm