Carbon Monoxide Detectors - Blowout Sale! Save up to 68%


Blowout Sale! Up to 68% off on Carbon Monoxide Detectors at Defy Now. Top brands include First Alert, Kidde, Elvicto, Pro-Lab, Universal Security Instruments, instecho, Lecoolife, & THZY. Hurry! Limited time offers. Offers valid only while supplies last.



First Alert Carbon Monoxide Alar Long life 10 Year Alarm with Temperature
By First Alert
In Stock
$47.97
$32.74
You Save: 32%

mpn: 1, ean: 0029054013019,

4.7 out of 5 stars with 54 reviews
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Kidde 900-0235 Nighthawk Carbon Monoxide Alarm, Long Life AC Powered with Battery Backup
By Kidde
In Stock
$99.99

mpn: KN-COB-DP-LS, ean: 0047871073085,

4.4 out of 5 stars with 91 reviews
''KIDDE PLC'' CARBON MONOXIDE ALARMThe kidde nighthawk ac powered, plug-in carbon monoxide alarm with battery backup is an easy to install unit that provides reliable protection against the dangers of carbon monoxide. Written information and instruction make this unit's operation easy to understand for anyone. The night ac/dc basic alarm has a small, sleek design that is suitable for all living areas the nighthawk plug-in carbon monoxide alarm provides you and your family with a loud warning


Kidde KN-COP-IC Hardwire Carbon Monoxide Alarm with Battery Backup and Digital Display, Interconnectable
By Kidde
In Stock
$58.21

mpn: 21006407, ean: 0032797004909,

4.1 out of 5 stars with 136 reviews
Digital display displays the level of carbon monoxide the unit is sensing. Battery pull tab eliminates battery installation time and keeps battery fresh. Peak level memory displays the highest CO concentration measured since the last reset. Tamper resist locking pin helps deter alarm tampering and theft. Kidde?s carbon monoxide alarms meet the requirements of Underwriters Laboratories (UL), an independent facility that tests products for compliance with widely-accepted safety standards.


Kidde KN-COB-B-LP2 Carbon Monoxide Alarm
By Kidde
In Stock
$47.07
$14.84
You Save: 68%

mpn: 9CO5-LP2, ean: 5915903622127,

4.9 out of 5 stars with 48 reviews
The Kidde 9Co5 Battery-Operated Carbon Monoxide Detector Utilizes Sophisticated Electronic Components To Protect Individuals And Families. Its Snap-On Cover Provides Immediate Battery Access, While Its Safety Feature Makes It Difficult To Close The Cover If The Batteries ArenMade in: United States Dimensions: 11.5 X 11.5 X 7.5Brand: Kidde Item Weight: 0.75includes: Unit Instruction Guide Kidde 9CO5-LP With the use of sophisticated electronic components, the Kidde 9CO5-LP battery-operated


Elvicto Combination Smoke Alarm Carbon Monoxide Detector with 10 Year Battery Operated and Photoelectric Sensor for Home
By Elvicto
In Stock
$29.99

ean: 0673169933658,

4.5 out of 5 stars with 104 reviews
Product DescriptionCO Alarm density:30ppm,alarms not activate within 120 minutes50ppm,alarms within 60-90 minutes100ppm,alarm with 10-40 minutes300ppm,alarm within 3 minutesstandby current: 85db(3meters)Alarm current:Combination fire alarm/carbon monoxide detector detects two threats. Photoelectric sensor detects smoke while minimizing false alarms. Electrochemical CO sensor alerts you to carbon monoxide danger.. Sealed-in 10 years lithium battery, no wire needed. Service life sensor about 10


First Alert GCO1CN Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display
By First Alert
In Stock
$79.99
$49.41
You Save: 38%

mpn: GC01CN, ean: 0014444627129,

4.9 out of 5 stars with 105 reviews
Monitor your house for dangerous levels of methane, propane, and carbon monoxide with the First Alert GCO1CN Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display. This explosive gas and CO alarm detects the presence of combustible gases propane and methane and alerts you with a loud 85-decibel alarm. It also comes equipped with an electrochemical CO sensor that accurately detects carbon monoxide leaks from faulty fuel-burning appliances, blocked chimneys, and a


First Alert CO511B Wireless Interconnected Carbon Monoxide Alarm with Voice and Location
By First Alert
In Stock
$69.99
$35.87
You Save: 49%

mpn: CO511B, ean: 0029054002914,

4.1 out of 5 stars with 37 reviews
The First Alert CO511B Wireless Interconnected Carbon Monoxide Alarm with Voice and Location detects elevated carbon monoxide levels and can work with compatible models to create a wireless alert system throughout your home. Designed for those who want a comprehensive detection system without hiring an electrician, this battery-operated carbon monoxide detector is an ideal solution. Wireless technology interconnects the detector with other compatible First Alert wireless-enabled alarms (sold


Kidde P4010DCSCO-W 10-Year Worry Free Battery Wireless Combination CO (1) Smoke Alarm, 0, White
By Kidde
In Stock
$69.00
$66.53
You Save: 4%

mpn: 21027311, ean: 0047871273119,

4.9 out of 5 stars with 126 reviews
Intelligent Wire-free Smoke and Carbon Monoxide Alarm. Combination Photoelectric Smoke and Carbon Monoxide Alarm. With Voice and Wireless Interconnect Battery Operated. This alarm detects products of combustion using photoelectric technology and carbon monoxide using an electrochemical cell. Ten (10) years after the unit was installed, this unit will automatically alert you that it is time to replace the unit. This is called End of Unit Life mode. You do NOT need a home Wi-Fi system to use


Kidde KN-COU-B Ultra-Sensitive Battery Powered Carbon Monoxide Monitor
By Kidde
In Stock
$91.05

mpn: 09942, ean: 0047871099429,

4.5 out of 5 stars with 49 reviews
The Kidde KN-COU-B is a carbon monoxide that indicates to the presence of low CO levels. Samples the air in your home and sounds a loud alarm to warn of life threatening conditions. Will indicate low levels of CO (below 30 PPM) which may have health implications for certain pre-existing health or medical conditions. Digital display feature adds an advance level of monitoring showing levels as low as 10 PPM.Provides warning of low levels of carbon monoxide. Digital display shows Co levels as low


First Alert CO605 Plug-In Carbon Monoxide Detector with Battery Backup
By First Alert
In Stock
$41.99
$18.19
You Save: 57%

mpn: FATCO605, ean: 0029054000729,

4.8 out of 5 stars with 84 reviews
The First Alert CO605 Plug-In Carbon Monoxide Detector helps protect your family with an electrochemical sensor and an 85-decibel alarm, and easily plugs into any standard outlet with no additional mounting necessary. It also includes a battery backup, so CO is monitored even if there's a power failure. One button silences any nuisance alarms, and also tests detector functions. And an end-of-life signal enhances your safety by letting you know when it's time to replace the unit. Keep your


Kidde KN-COB-B-LP Nighthawk Carbon Monoxide Alarm, Battery Operated
By Kidde
In Stock
$22.69
$20.10
You Save: 11%

mpn: GID-107540, ean: 5448095773006,

4.0 out of 5 stars with 76 reviews
21007268 Features: -Carbon monoxide alarm. -Easy to install. Product Type: -Carbon Monoxide Detector. Orientation: -Wall/Ceiling Mounted. Mounting: -Wall. Dimensions: Overall Width - Side to Side: -11''. Overall Depth - Front to Back: -2''. Overall Product Weight: -0.61 lbs. Easy to install, the Kidde Nighthawk KN-COB-B-LS battery-operated carbon monoxide alarm provides reliable protection against the dangers of carbon monoxide (CO). With an increasing number of state and local governments


Kidde Twin Value Pack CO Alarm with Digital Display
By Kidde
In Stock
$39.88
$27.92
You Save: 30%

mpn: N-COPP-B-LS, ean: 0047871267514,

4.9 out of 5 stars with 141 reviews
The Kidde Nighthawk battery operated carbon monoxide alarm is an easy to install unit that provides reliable protection against the dangers of carbon monoxide. Digital display feature adds an advanced level of protection showing CO levels in PPM allowing you to see if levels change. The Nighthawk DC Digital alarm has a small, sleek design that is suitable for all living areas.Digital display - shows CO level in PPM (parts per million), updates digital reading every 15 seconds allowing you to


PRO-LAB Radon Gas Test Kit
By Pro-Lab
In Stock
$11.97

ean: 0683431991484,

4.1 out of 5 stars with 10 reviews
.


Universal Security Instruments MCND401 M Series Plug-In Carbon Monoxide and Natural Gas Alarm with 9-Volt Battery Backup
By Universal Security Instruments
In Stock
$49.99
$35.99
You Save: 28%

mpn: MCND401, ean: 0042741004015,

4.0 out of 5 stars with 105 reviews
Universal Security Instruments MCND401 M Series Plug-In Carbon Monoxide and Natural Gas Alarm with 9-Volt Battery Backup offers Single Installation and Double Protection. This compact plug-in alarm is perfect for new or replacement installations. Dual sensing alarm - provides protection against two deadly household threats: Carbon Monoxide and Natural Gas. The display shows the level of carbon monoxide detected. This alarm is suitable for installation in houses, apartments and mobile homes.


Kidde 21010045 C3010 Worry-Free Carbon Monoxide Alarm with 10 Year Sealed Battery
By Kidde
In Stock
$42.97
$29.99
You Save: 30%

mpn: 21010045, ean: 0784497907973,

4.3 out of 5 stars with 98 reviews
The Kidde C3010 is a 10-year, sealed battery, carbon monoxide alarm that uses electro-chemical sensing technology to protect you and family from the dangers of carbon monoxide. The C3010 alarm will automatically activate when attached to the mounting bracket. At the end of alarm life, the unit will chirp, indicating the alarm is in need of replacement. A screwdriver can be used to deactivate the unit, stopping the end-of-life chirp and making it safe for disposal. The inside cover of the


Carbon Monoxide Gas Detection,CO Detector Alarm LCD Portable Security Gas CO Monitor,Battery Powered,Alarm Clock Warning (3 AA Battery not included) (UL2034) (White)
By instecho
In Stock
$12.99

ean: 0606682229489,

4.9 out of 5 stars with 69 reviews
【Features】 1.Loud 85 decibel alarm  2.Backlit display  3.Alarm memory feature 4.Low battery indicator  5.Test/Reset button  6.End of unit life warning  7.Power saving feature  8.Easy installation  【Specifications】 Sensor: electrochemical co sensor  Alarm tone: 85 decibels   Display: LCD blue backlight digital display  Low power alarm: a ''built'' every 30 seconds is a clue  Power supply: 3 *AA batteries (not included)  Standby Current:Dr.fasting co detector


Kidde 21025759 Plug In Carbon Monoxide AlarmTamper Resistant
By Kidde
In Stock
$42.04
$36.51
You Save: 13%

mpn: 21025763, ean: 0047871257591,

4.1 out of 5 stars with 147 reviews
The Nighthawk, AC Powered, Basic Plug In Carbon Monoxide Alarm, With Battery Back Up, Easy To Install, Provides Reliable Protection Against The Dangers Of Carbon Monoxide, Written Information and Instruction, Easy For Anyone To Understand, AC/DC Digital Alarm Has A Small Sleek Design That Is Suitable For All Living Areas, 7 Year Limited Warranty.Kidde Plc. 21025763. 4. NEW. 6.16.


Carbon Monoxide Detector Alarm with Digital Display for Home, Travel Portable Battery Operated CO Sensor Alarm/Monitor
By Lecoolife
In Stock
$16.99

mpn: fuhe-1,

4.4 out of 5 stars with 63 reviews
► Why use carbon monoxide monitor? ► What is the risk of carbon monoxide? Carbon monoxide (CO) is the leading cause of accidental poisoning deaths in America, yet many people don't know they are suffering from CO poisoning until its too late. Since symptoms of CO poisoning are like the flu, you might not even know you're in danger at first. That's why a carbon monoxide alarm is an excellent way to protect your family. It can detect the CO you can't see, smell or taste in the air. The


Universal Security Instruments MCD305SB Carbon Monoxide Smart Alarm with 10 Year Sealed Battery and Display Screen
By Universal Security Instruments
In Stock
$39.99
$29.95
You Save: 25%

mpn: MCD305SB, ean: 0042741303057,

4.4 out of 5 stars with 124 reviews
Nothing is more important than the safety of your family. The Universal Security Instruments MCD305SB Carbon Monoxide Smart Alarm provides 10 years of continuous protection against the threat of carbon monoxide. Universal Security Instruments are the only lithium-free 10 Year Sealed battery alarms. We’re powered by Duracell Duralock Power Preserve alkaline batteries, ensuring a safer and more eco-friendly product. 10 Year Permanent Power saves money while eliminating low battery chirps and


Smoke & Carbon Monoxide Alarm, THZY Battery Operated Carbon Monoxide CO Detector with Sound Warning and LED Light Indicator,9V Battery Back-up, White
By THZY
In Stock
$19.99

mpn: I900066,

4.9 out of 5 stars with 142 reviews
100% Satisfaction Guarantee - THZY team offers every customer 100% satisfaction guarantee. You can order it without any risks. If you meet any operation difficulties or quality issues, you can contact our professional technical team for help. Please rest assured that we also have 3 Year warranty.. THZY smoke and carbon monoxide detector, features a photoelectric smoke sensor and an electrochemical carbon monoxide sensor technology. 9V Battery Inside the Battery Compartment.. When a dangerous



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