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Fire & co detector in 1 unit with alert modes, "fire! fire!", "Warning! Carbon Monoxide!", LED lights, & voice alarm, that states, or "Low Battery!". Protects during a power failure - combo smoke and CO alarm operates on a sealed, lithium battery.

120v ac, all kidde brand hard wired smoke alarms are interconnectable with the KN-COSM-IBA. Meets safety standards set by Underwriters Laboratories UL and interconnects with other KN-COSM-IBA models. Test-hush feature - silences the unit for approximately 9 minutes; tamper-resistant technology deters removal of the unit from the wall or ceiling.


Fire & co detector in 1 unit with alert modes, test-silence button, LED light, & Replacement Alert: a chirp that notifies when the unit needs to be replaced. Replacement alert - can be silenced for 3 days at a time, maximum of 30 days; tamper-resistant technology deters removal of the unit or battery from the wall or ceiling.



Resets the Carbon Monoxide Alarm. One quick beep every 30 seconds alerts the unit is in error condition. The carbon monoxide alarm pattern is 4 short beeps, followed by 5 seconds of silence, followed by 4 short beeps with a corresponding red Led flash.
Event memory – red led flashes every 60 seconds to alert that a high level of carbon monoxide has been detected within the last 14 days. Red led when a dangerous level of carbon monoxide is detected the red Led will pulse and a loud alarm pattern will sound. This cycle will continue for 4 minutes and then change to 2 patterns once a minute there after. Eliminates worry about battery removal or unauthorized deactivation of alarm.
1. Kidde
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Kidde Battery Operated Carbon Monoxide Alarm with Digital Display
#adKidde #ad - Ul certified, 10-year limited warranty. Protects during a power failure - CO detector operates on 3-AA batteries. Co detector with alert modes & 2 LED lights that pulse for power & CO detection.More information #ad
Electrochemical sensing technology - CO alarm detects the presence of carbon monoxide gas, 85 decibel alarm. Easy to read digital display - allows for easy viewing of carbon monoxide levels.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 2.75 Inches |
Length | 4.5 Inches |
Weight | 0.01 Pounds |
Width | 1.5 Inches |
Part Number | 21008873 |
Model | KN-COPP-B-LPM |
Warranty | 10 Year Limited |
More information #ad
2. Kidde
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Battery Powered with LED Lights, CO Alarm, Kidde Carbon Monoxide Detector
#adKidde #ad - Whole home family protection - place 1 carbon monoxide detector on each level of your home & in your bedroom to protect from poisonous gases. Ul certified, 10-year limited warranty. Protects during a power failure - operates on 2-AA batteries, included with pack.More information #ad
Sophisticated electronic components to protect you & your family from the dangers of carbon monoxide, 85 decibel alarm alerts of fire. Co detector with alert modes & LED lights that pulse for power, CO detection, & low battery.Brand | Kidde #ad |
Manufacturer | Kidde #ad |
Height | 11 Inches |
Length | 3 Inches |
Weight | 0.5 Pounds |
Width | 7 Inches |
Part Number | KN-COB-LP2 9CO5-LP2 |
Model | KN-COSM-BA |
Warranty | 10-Year warranty: Consult User Guide for more information. |
More information #ad
3. Kidde
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Battery Powered, Kidde Smoke & Carbon Monoxide Detector, Voice Alert, Combination Smoke & CO Alarm
#adKidde #ad - Ionization sensor technology - smoke detector detects invisible fire particles, 85 decibel alarm alerts of fire. Ul certified, 10-year limited warranty. Fire and co detector in 1 unit with alert modes, that states, and voice alarm, "Warning.More information #ad
Fire. Or "low Battery. ". Protects during a power failure - combo smoke and CO alarm operates on 2-AA batteries. Test-hush feature - silences the unit for approximately 8 minutes; tamper-resistant technology deters removal of the unit from the wall or ceiling. Carbon Monoxide. Led lights, "Fire.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 5.6 Inches |
Length | 1.8 Inches |
Weight | 0.8 Pounds |
Width | 5.6 Inches |
Part Number | 21026043 |
Model | KN-COSM-BA |
Warranty | 5-year limited warranty |
More information #ad
4. Kidde
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Lithium Battery Powered, Combination Smoke & CO Alarm with Voice Alert, Kidde Smoke & Carbon Monoxide Detector
#adKidde #ad - Test-hush feature - silences the unit for approximately 8 minutes; tamper-resistant technology deters removal of the unit from the wall or ceiling.Fire & co detector in 1 unit with alert modes, "fire! fire!", "Warning! Carbon Monoxide!", LED lights, & voice alarm, that states, or "Low Battery!". Protects during a power failure - combo smoke and CO alarm operates on a sealed, lithium battery.
More information #ad
Ul certified, 10-year limited warranty. Photoelectric & electrochemical sensor technologies - smoke detector detects invisible fire particles, while the carbon monoxide detects poisonous carbon monoxide gas; 85 decibel alarm alerts of fire.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 5.22 Inches |
Length | 5.22 Inches |
Width | 1.6 Inches |
Part Number | 21026065 |
Model | P3010CU |
Warranty | 10 year limited |
More information #ad
5. Kidde
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Interconnect Combination Smoke & CO Alarm with Battery Backup, Voice Alert, Hardwired, Kidde Smoke & Carbon Monoxide Detector
#adKidde #ad - Protects during a power failure - combo smoke and CO detector operates on a 120VAC power source with 2-AA battery backup. Ul certified, 10-year limited warranty.120v ac, all kidde brand hard wired smoke alarms are interconnectable with the KN-COSM-IBA. Meets safety standards set by Underwriters Laboratories UL and interconnects with other KN-COSM-IBA models. Test-hush feature - silences the unit for approximately 9 minutes; tamper-resistant technology deters removal of the unit from the wall or ceiling.
More information #ad
Fire & co detector in 1 unit with alert modes, & voice alarm, "Warning! Carbon Monoxide!", that states, "Fire! Fire!", LED lights, or "Low Battery!". Ionization sensing technology - hardwired smoke detector detects invisible fire particles, 85 decibel alarm alerts of fire.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 6 Inches |
Length | 2 Inches |
Weight | 1 Pounds |
Width | 6 Inches |
Part Number | 21026041 |
Model | KN-COSM-IBA |
Warranty | 10 Year Limited |
More information #ad
6. Kidde
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Digital Display & 3 LED Lights, Kidde Carbon Monoxide Detector with Lithium Battery
#adKidde #ad - Electrochemical sensing technology - CO alarm detects the presence of carbon monoxide gas, 85 decibel alarm. Easy installation & no battery fuss - CO alarm will automatically activate when attached to the mounting bracket.More information #ad
Co detector with alert modes & 3 LED lights that pulse for power, CO detection, & low battery. Protects during a power failure - CO detector operates on a 10-year, sealed lithium battery. Ul certified, 10-year limited warranty.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 2.75 Inches |
Length | 4.5 Inches |
Weight | 0.54 Pounds |
Width | 1.5 Inches |
Part Number | 21029754 |
Model | C3010D |
Warranty | 10 year limited warranty |
More information #ad
7. Kidde
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Kidde Smoke & Carbon Monoxide Detector, Combination Smoke & CO Alarm with Lithium Battery, Replacement Alert
#adKidde #ad - Ul certified, 10-year limited warranty. No battery replacement needed - combo smoke and CO detector operates on a non-replaceable, 10-year lithium battery.Fire & co detector in 1 unit with alert modes, test-silence button, LED light, & Replacement Alert: a chirp that notifies when the unit needs to be replaced. Replacement alert - can be silenced for 3 days at a time, maximum of 30 days; tamper-resistant technology deters removal of the unit or battery from the wall or ceiling.
More information #ad
Photoelectric & electrochemical sensing technology - combination smoke & CO detector detects visible fire particles, 85 decibel alarm alerts of fire.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 1.6 Inches |
Length | 5.22 Inches |
Weight | 0.31 Pounds |
Width | 5.22 Inches |
Part Number | 21010170 |
Model | P3010k-CO |
Warranty | 10 year limited warranty |
More information #ad
8. Kidde
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AC-Plug-In with Battery Backup, CO Alarm with Replacement Alert, Kidde Carbon Monoxide Detector
#adKidde #ad - Whole home family protection - place 1 carbon monoxide detector on each level of your home & in your bedroom to protect from poisonous gases. Easy & quick installation - plugs directly into your home's standard wall outlet, 85 decibel alarm alerts of fire.More information #ad
Co detector that alerts with a warning signal against dangerous levels of carbon monoxide in your home. Protects during a power failure - 2-AA batteries, included with pack, provide backup service in the event of a power outage. Ul certified, 10-year limited warranty.Brand | Kidde #ad |
Manufacturer | Kidde #ad |
Height | 4.5 Inches |
Length | 2.75 Inches |
Weight | 0.04 Pounds |
Width | 1.5 Inches |
Part Number | 900-0263 |
Model | KN-COB-DP2 |
More information #ad
9. Kidde
#ad
Battery Powered, Kidde Intelligent Smoke & Carbon Monoxide Detector, Combination Smoke & CO Alarm with Voice Alert
#adKidde #ad - Ionization & electrochemical sensor technologies - smoke detector detects invisible fire particles, while the CO alarm detects poisonous carbon monoxide gas; 85 decibel alarm alerts of fire. Fire & co detector in 1 unit with alert modes, led lights, "Warning Carbon Monoxide", & voice alarm, that states, "Fire Fire", or "Low Battery".More information #ad
Ul certified, 10-year limited warranty. Test-hush feature - silences the unit for approximately 9 minutes. Protects during a power failure - combo smoke and CO alarm operates on 2-AA batteries.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 5.6 Inches |
Length | 5.6 Inches |
Weight | 1.04 Pounds |
Width | 1.8 Inches |
Part Number | KN-COSM-XTR-BA |
Model | KN-COSM-XTR-BA |
More information #ad
10. Kidde
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Kidde Worry-Free Carbon Monoxide Detector Alarm with 10 Year Sealed Battery | Model C3010
#adKidde #ad - Amber led flashes every second to indicate the unit is in fault mode. Sealed-in lithium battery – sealed-in lithium power supply; no battery replacement required over the 10 year life of the alarm. Self activation – Alarm automatically activates when attached to the mounting bracket.Resets the Carbon Monoxide Alarm. One quick beep every 30 seconds alerts the unit is in error condition. The carbon monoxide alarm pattern is 4 short beeps, followed by 5 seconds of silence, followed by 4 short beeps with a corresponding red Led flash.
More information #ad
Test/reset button – tests the unit for proper operation. One quick beep every 60 seconds is an indication of low battery power. Led - green led flashes every 30 seconds to indicate the unit is operating properly. Event memory – red led flashes every 60 seconds to alert that a high level of carbon monoxide has been detected within the last 14 days. Red led when a dangerous level of carbon monoxide is detected the red Led will pulse and a loud alarm pattern will sound. This cycle will continue for 4 minutes and then change to 2 patterns once a minute there after. Eliminates worry about battery removal or unauthorized deactivation of alarm.
Brand | Kidde #ad |
Manufacturer | Kidde #ad |
Height | 2.75 Inches |
Length | 4.5 Inches |
Weight | 0.25 Pounds |
Width | 1.5 Inches |
Part Number | 21010045 |
Model | 21010045 |
Warranty | 10 year limited warranty |
More information #ad