Combination Smoke & Carbon Monoxide Detectors - Extreame Savings! Save up to 43%


Extreame Savings! Up to 43% off on Combination Smoke & Carbon Monoxide Detectors at Defy Now. Top brands include Gentex, Kidde, BRK, First Alert, CFFAMCC, Universal Security Instruments, & vitowell. Hurry! Limited time offers. Offers valid only while supplies last.



Gentex GN-503FF Smoke & Carbon Monoxide Alarm, 120V Hardwired Interconnectable Photoelectric w/9V Battery Backup, T3 & T4 Horns, A/C Contacts (918-0021-002)
By Gentex
In Stock
$92.58

mpn: GN-503FF, ean: 0785577517716,

4.8 out of 5 stars with 145 reviews
The Gentex GN503FF is a single or multiple station combination smoke and carbon monoxide alarm. It's designed for 120V hardwired use and features a 9V battery backup for ensured safety even when power is lost. This Gentex smoke/carbon monoxide alarm features a temporal 3 (T3) audible signal for smoke detection and a temporal 4 (T4) audible signal for carbon monoxide evacuation. This model features a universal mount that can be use for ceiling or wall applications. This Gentex combination smoke


Kidde 21025788 KN-COB-B-LPM Carbon Monoxide Alarm, 6-Pack
By Kidde
In Stock
$98.97
$93.93
You Save: 5%

mpn: 21025788, ean: 0047871089086,

4.5 out of 5 stars with 123 reviews
The Kidde KN-COB-B-LPM battery operated carbon monoxide alarm utilizes sophisticated electronic components to protect you and your family from the dangers of carbon monoxide. This alarm includes a slide-out battery door that gives immediate access to the batteries and a safety feature that makes it difficult to close the door without the batteries being installed. Inside cover of battery door features quick reference guide for what to do in case of an alarm. This easy-to-install alarm is


KDD 21010071 Kitchen Smoke/Carbon Monoxide Alarm, Lithium Battery, 5.22quot;Dia x 1.6quot;Depth
By Kidde
In Stock
$54.66

mpn: KID21010071, ean: 0804993497027,

4.1 out of 5 stars with 149 reviews
KDD 21010071 Kitchen Smoke/Carbon Monoxide Alarm, Lithium Battery, 5.22quot;Dia x 1.6quot;DepthManufacturer: Kidde.


BRK CO5120PDBN Hardwire Carbon Monoxide Alarm w/Battery Backup, Digital Display
By BRK
In Stock
$52.90

mpn: CO5120PDBN, ean: 0029054856197,

4.2 out of 5 stars with 21 reviews
BRK CO5120PDBN Hardwire Carbon Monoxide Alarm w/Battery Backup, Digital DisplayDetails:120-volt hardwired carbon monoxide alarm wires directly into your home's electrical systemElectrochemical sensor and microprocessor accurately detect carbon monoxide while minimizing false alarmsBacklit digital display allows you to view current and peak levelsEasy-to-access battery drawer; 9-volt battery includedCarbon monoxide detector can integrate with up to 18 compatible devices for extended


Gentex GN-503 Smoke & Carbon Monoxide Alarm, 120V Hardwired Interconnectable Photoelectric w/9V Battery Backup & T3 & T4 Horns (918-0005-002)
By Gentex
In Stock
$63.88
$58.00
You Save: 9%

mpn: GN-503, ean: 0700217028063,

4.2 out of 5 stars with 73 reviews
The Gentex GN503 is a single or multiple station combination smoke and carbon monoxide alarm. It's designed for 120V hardwired use and features a 9V battery backup for ensured safety even when power is lost. This Gentex smoke/carbon monoxide alarm features a temporal 3 (T3) audible signal for smoke detection and a temporal 4 (T4) audible signal for carbon monoxide evacuation. This model features a universal mount that can be use for ceiling or wall applications.Horn frequency 3100 Hz (nominal)


First Alert SC9120LBL Combination Alarm
By First Alert
In Stock
$58.99

mpn: 1039807, ean: 0029054018786,

4.5 out of 5 stars with 35 reviews
Easy Installation/Maintenance - Preferred features include a large opening in the mounting bracket for easy access to wiring. Keyhole slots in the mounting bracket eliminate the need to remove the electrical box screws for installation. A battery pull tab keeps the battery fresh until the home is occupied. Battery installation and removal can occur while the unit is mounted to the ceiling or wall via the side load battery compartment. Two locking features are provided to prevent battery theft


Mini Smoke Detector and Carbon Monoxide Detector Combo, with Sound Warning and Number Display  Battery Powered Smoke CO Detector
By CFFAMCC
In Stock
$25.02

ean: 0604348352083,

4.8 out of 5 stars with 86 reviews
As the only US Based Retailer of this item, We have a Chemist on Staff to answer any Technical Questions. We also Give e-books about Tips to Help Prevent Carbon Monoxide Poisoning and How to Escape a Burning Building. This Combination CO/Smoke Carbon alarm features an 85dB/3m Horn and Voice that announces ''Fire'', ''Carbon Monoxide'', and ''Low Battery'' Warnings When Detected. Meets NFPA 72 standards / UL Standards Smoke and Carbon Monoxide Alarm, Detection Method Lonization,


Inter Connectable Smoke Alarm with Battery Backup
By Kidde
In Stock
$65.40
$64.21
You Save: 2%

mpn: 21006373, ean: 0787392263687,

4.8 out of 5 stars with 16 reviews
Kidde i12040 Hardwired Smoke Alarm with Battery Backup and Smart HushHush feature temporarily silences nuisance alarms.


First Alert SC9120B Hardwire Combination Smoke/Carbon Monoxide Alarm with Battery Backup by BRK
By First Alert
In Stock
$34.30
4.4 out of 5 stars with 146 reviews
Brand new in the box. Date on these are 12/2017.


Universal Security Instruments MIC3510SB 3-in-1 Smoke Fire and Carbon Monoxide Smart Alarm with 10 Year Sealed Battery
By Universal Security Instruments
In Stock
$39.89

mpn: MICH3510S, ean: 0042741335102,

4.5 out of 5 stars with 22 reviews
Nothing is more important than the safety of your family. The Universal Security Instruments MIC3510SB 3-in-1 Smoke, Fire and Carbon Monoxide Smart Alarm provides 10 years of continuous protection against deadly threats in the home. 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


Kidde S Battery Powered Night Hawk Combination Smoke/CO Voice/Alarm Warning,
By Kidde
In Stock
$36.00
$32.13
You Save: 11%

mpn: 900-0102, ean: 0784908010209,

4.3 out of 5 stars with 49 reviews
Battery Powered Night Hawk Combination Smoke/CO Alarm with Voice/Alarm WarningTalking alarm announces the hazard type detected, helping to speed up reaction time.


2 Pack Combination Photoelectric Smoke and Carbon Monoxide Alarm Detector for Home Bedroom Travel Portable Battery Operated
By vitowell
In Stock
$24.99

ean: 0673169933276,

4.4 out of 5 stars with 131 reviews
This combination smoke/CO carbon alarm features an 85dB horn and voice that announces ''Fire'', ''Carbon Monoxide'', and ''Low Battery'' warnings when detected. Meets NFPA 72 standards Smoke and Carbon Monoxide Alarm, Detection Method Ionization, Electrochemical, Up to 24 Units Interconnection Capability, Audible Alert 85dB @ 10 ft., Horn, Peak Level Memory, Reset Button, Hush Button Yes, Locking Pin Yes, Operating Temp. 40 Degrees to 100 Degrees F, Standards UL, Includes Mounting Anchors and


Kidde i12010SCO 10-Year Battery & Hardwired Smoke and Carbon Monoxide Alarm
By Kidde
In Stock
$69.99
4.7 out of 5 stars with 90 reviews
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First Alert PC910 10-Year 2 in 1 Photoelectric Smoke Detector with Carbon Monoxide Alarm, White
By First Alert
In Stock
$49.99
$31.34
You Save: 37%

mpn: 1092-6269, ean: 6942469287896,

4.7 out of 5 stars with 70 reviews
Combining safety and style, the First Alert PC910 Combination Photoelectric Smoke and Carbon Monoxide Alarm helps protect your home from fire and dangerous carbon monoxide levels by providing up to a decade of uninterrupted monitoring. This smoke detector uses an ultra-reliable photoelectric sensor to detect smoke from smoldering fires, and it features a patented smoke entry system to help ensure thorough coverage. The unit also features an advanced electrochemical sensor that detects carbon


Smoke Alarm Front Load
By Kidde
In Stock
$27.98
$22.99
You Save: 18%

mpn: 21007582, ean: 0047871075829,

4.1 out of 5 stars with 95 reviews
120V AC/DC SLIDE LOAD W/ ALKALINE BATTERY 10 YEAR WARRANTY120V AC/DC SLIDE LOAD W/ ALKALINE BATTERY 10 YEAR WARRANTY.


Kidde Battery Operated Combination Smoke & Carbon Monoxide Alarm KN-COSM-BA
By Kidde
In Stock
$44.99
$31.60
You Save: 30%

mpn: 21026043, ean: 0047871260430,

4.2 out of 5 stars with 141 reviews
The Kidde KN-COSM-BA Combination Carbon Monoxide & Smoke Alarm provides two important safety devices in a single unit. This alarm includes a voice warning system that announces “Fire, Carbon Monoxide, Low Battery and Smart Hush Activation.” The voice alarm eliminates any confusion and clearly warns you and your family of a smoke or carbon monoxide danger, or if your battery is in need of replacement. This technologically advanced combination alarm is battery operated protecting you and your


5 Inch Diameter, Smoke Alarm
By Kidde
In Stock
$19.99
$11.49
You Save: 43%

mpn: i9060, ean: 0025417009163,

4.4 out of 5 stars with 38 reviews
5 Inch Diameter, Smoke AlarmPrice For: Each Alarm Type: Smoke Alarm Power Source: Battery Sensor Type: Ionization Mount Type: Wall or Ceiling Interconnectable: Yes Decibel Rating (dB): 85.00 Batteries Included: Yes Warranty (Years): 10 Tamper Resistant: Yes Low Battery Warning: Yes Indicating Light: Yes Battery Size/Type: 9V Diameter (Decimal Inch): 5.0000. Projection (Decimal Inch): 1.5000.


First Alert 7020BSL Smoke Alarm
By First Alert
In Stock
$99.99
$91.17
You Save: 9%

mpn: 7020BSL, ean: 0029054018014,

4.6 out of 5 stars with 71 reviews
The First Alert Hardwired LED Strobe Light Alarm with 10-Year Sealed Battery features an incredibly bright LED strobe that's proven to be extremely efficient in providing assistance for individuals with hearing impairments. The intuitive use of a Smart Strobe feature carries the ability to distinguish between Smoke/Heat and CO dangers. First Alert Smart Strobe Light Alarms include a wide compatibility range and can be interconnected with First Alert and BRK Smoke, CO, Smoke/CO Combination and


First Alert SC9120B Hardwire Combination Smoke/Carbon Monoxide Alarm with Battery Backup by BRK
By First Alert
In Stock
$37.98
$31.05
You Save: 18%

mpn: 8491146,

4.0 out of 5 stars with 105 reviews
Superior carbon monoxide sensor and dual ionization smoke alarm;Inter-connectable with BRK and First Alert hardwired smoke and carbon monoxide alarms;Easy to install universal mount bracket;Simple to use silence/test button; separate smoke and CO latching alarm indicators;9-volt battery included; 7-year limited warrantyFirst Alert SC9120B Hardwire Combination Smoke/Carbon Monoxide Alarm with Battery Backup. 1 Pack.


Kidde P4010ACSCO AC Hardwired Combination (1) Carbon Monoxide and Photoelectric Smoke Alarm
By Kidde
In Stock
$52.99

mpn: P4010ACSCO, ean: 0047871275366,

4.3 out of 5 stars with 64 reviews
Flashing LED Status Ring allows easy identification of current state of alarm Description The Kidde P4010ACSCO is an AC/DC powered, combination photoelectric smoke and carbon monoxide alarm that contains a 10-year, sealed battery backup and voice messaging system. The voice warning feature accompanies the 85dB tone during an alarm event, and helps reduce confusion with verbal announcements such as “Replace alarm” at end of alarm life, and “Hush mode activated” when a nuisance alarm is



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