2 in 1 CO and Smoke Alarm Carbon Monoxide Detectors Smoke Detector Smoke Combination CO Alarm Fire CO for Alarm for Home and Kitchen LED Screen Carbo

2 in 1 CO and Smoke Alarm Carbon Monoxide Detectors Smoke Detector Smoke Combination CO Alarm Fire CO for Alarm for Home and Kitchen LED Screen Carbo The alarm will emit four short alarm beeps when carbon monoxide is detected and will emit continuous beeps when smoke is detected. The alarm will also emit continuos beeps when both smoke and carbon monoxide are detected at the same time. The red LED will flash while in alarm mode. One "beep" every 30 seconds is an indication that the battery is low (need replacement) or the unit is malfunctioning. Test button to verify that the unit is functioning correctly. Green and red LED lights that indicate normal operation and alarm status. The unit will "beep" and green LED will flash once as power up. The 2 in 1 CO and smoke alarm detectors are equipped with high-quality electrochemical sensors that boast remarkable sensitivity for detection. Keep your home and family peace with our carbon monoxide detectors, which also act as smoke detectors. (Not included)Sensitivity Setting: CO: sensitivity & time                               50ppm, alarms with 60-90minutes                                100ppm, alarms with10-40minutes                               300ppm, alarms with 3minutes                               SMOKE: 1%-5% / FT OBSStandby Current: <100uAAlarm Current: <75mAOperation Ambient Condition: 5℃~40℃, 20~90%RHItem Size: 113 * 113 * 35mm / 4.45 * 4.45 * 1.38inItem Weight: 106g / 3.73ozPackage Weight: 148g / 5.22ozPackage Size: 12 * 12 * 4.5cm / 4.72 * 4.72 * 1.77inPackage List:1 * CO and Smoke Alarm2 * Screws2 * Anchor Plugs1 * User Manual (English/German/French/Italian)