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Carbon Monoxide Detectors - Page 2 - Blowout Sale! Save up to 67%


Blowout Sale! Up to 67% off on Carbon Monoxide Detectors at Defy Now, Page 2. Top brands include First Alert, Flexzion, Wewalab, MIXSight, Kidde, EHOLIFE, Universal Security Instruments, GXG-1987, Dewsshine, & GDM HOME. Hurry! Limited time offers. Offers valid only while supplies last.



First Alert CO400 Carbon Monoxide Detector, Battery Operated
First Alert CO400 Carbon Monoxide Detector, Battery Operated
By First Alert
In Stock
$34.99
$13.80
You Save: 61%

mpn: CO400, ean: 0736569087649,

4.7 out of 5 stars with 46 reviews
Keep your family safe with this easy to use, battery operated carbon monoxide alarm; battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure. Features an advanced electrochemical carbon monoxide sensor that...




Flexzion CO Carbon Monoxide Detector Alarm Tester Sensor Meter Alert UL Certified Home Safety with Digital LCD Display and Voice Warning Battery Operated Portable in White
Flexzion CO Carbon Monoxide Detector Alarm Tester Sensor Meter Alert UL Certified Home Safety with Digital LCD Display and Voice Warning Battery Operated Portable in White
By Flexzion
In Stock
$21.99

mpn: ALRM_CO_GAX_UL, ean: 0814870028992,

4.5 out of 5 stars with 133 reviews
This UL Listed Carbon Monoxide Detector or CO detector is a device that detects the presence of the carbon monoxide (CO) gas in order to prevent carbon monoxide poisoning. CO is a colorless, tasteless and odorless compound produced by incomplete comb...


First Alert CO910V  10-Year Carbon Monoxide Alarm with Voice Alert, White
First Alert CO910V 10-Year Carbon Monoxide Alarm with Voice Alert, White
By First Alert
In Stock
$42.00

mpn: CO910V, ean: 0029054012906,

4.1 out of 5 stars with 17 reviews
Hassle free, 10-year, slim style Carbon Monoxide Alarm. It's protection at its finest. The CO910V alarm adds an element of style to safety. A fraction of the size of a standard alarm with all the protection needed to keep what matters most safe and ...


Wewalab CO Detector,Carbon Monoxide Gas Detection,Carbon Monoxide Alarm, LCD Portable Security Gas CO Monitor,Battery Powered (Battery not included) (3 packs)
Wewalab CO Detector,Carbon Monoxide Gas Detection,Carbon Monoxide Alarm, LCD Portable Security Gas CO Monitor,Battery Powered (Battery not included) (3 packs)
By Wewalab
In Stock
$55.99
$26.99
You Save: 52%

ean: 0678279962659,

4.2 out of 5 stars with 97 reviews
Color: white with a little red Sensor: electrochemical co sensor Alarm tone: 85 decibels┬á Display: LCD blue backlight digital display Low power alarm: a "built" every 30 seconds is a clue Power supply: 3 *AA batteries (not included) Alarm standard:┬...


MIXSight Carbon Monoxide Detector CO Alarm Detector with LCD Digital Display Battery Operated, 2-Pack
MIXSight Carbon Monoxide Detector CO Alarm Detector with LCD Digital Display Battery Operated, 2-Pack
By MIXSight
In Stock
$11.99

mpn: AM102-2, ean: 0635648354460,

4.8 out of 5 stars with 66 reviews
Product Description´╝Ü Battery Operated Carbon Monoxide Alarm - The 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-ou...


Kidde KN-COB-B-LPM Battery Operated Carbon Monoxide Alarm
Kidde KN-COB-B-LPM Battery Operated Carbon Monoxide Alarm
By Kidde
In Stock
$21.99

mpn: KN-COB-B-LPM, ean: 0047871089055,

4.6 out of 5 stars with 130 reviews
The Code One Battery-Operated Carbon Monoxide Alarm is intended for use to help provide continuous monitoring of carbon monoxide levels. The alarm features a piezoelectric horn that is rated at 85 dB at 10 ft. The alarm is battery operated for uninte...


Carbon Monoxide Alarm With Digtal Display More Accurate LCD Security Gas CO Monitor ,Alarm Clock Warning,Battery Operated,Power Detection Equipment (Battery not included) (White)
Carbon Monoxide Alarm With Digtal Display More Accurate LCD Security Gas CO Monitor ,Alarm Clock Warning,Battery Operated,Power Detection Equipment (Battery not included) (White)
By EHOLIFE
In Stock
$30.99
$12.99
You Save: 58%

ean: 9557035808312,

4.6 out of 5 stars with 52 reviews
Test the alarm First: Step 1: press the test button for 5s (A single silence and test button eliminates confusion and allows you to silence and test the alarm easily) Step 2: the unit will sound 4 beeps every 5s twice & Red LED flashes & LCD display ...


Kidde KN-COB-LCB-A Tamper Resistant Plug-In Carbon Monoxide Alarm with Battery Backup
Kidde KN-COB-LCB-A Tamper Resistant Plug-In Carbon Monoxide Alarm with Battery Backup
By Kidde
In Stock
$50.00

mpn: 21006137, ean: 0047871061372,

4.6 out of 5 stars with 138 reviews
9-Volt battery backup provides continuous protection. Loud 85db alerts you of deadly CO gas. Includes tamper-resistant feature. The Low Battery Hush silences low battery chirp warning up to 12-hours to maintain protection. Kidde's carbon monoxide al...


Kidde Battery Operated Carbon Monoxide Alarm with Digital Display KN-COPP-B-LPM
Kidde Battery Operated Carbon Monoxide Alarm with Digital Display KN-COPP-B-LPM
By Kidde
In Stock
$54.49
$18.00
You Save: 67%

mpn: 21008873, ean: 0716080045267,

4.2 out of 5 stars with 134 reviews
Digital Display - Displays the level of carbon monoxide the unit is sensing. Shows CO level in PPM (parts per million). Updates digital reading every 15 seconds allowing you to see if levels change. Peak Level Memory displays the highest CO conc...


Kidde 900-0113-02 Carbon Monoxide & Explosive Gas Alarm
Kidde 900-0113-02 Carbon Monoxide & Explosive Gas Alarm
By Kidde
In Stock
$69.99
$54.97
You Save: 21%

mpn: 1092-5071, ean: 0081908011305,

4.5 out of 5 stars with 41 reviews
900-0113-02 Features: -Carbon monoxide and explosive gas alarm. -Protection from two threats, advanced alarm detects both carbon monoxide and explosive gas. -Digital readout of CO level. -AC plug with hide-a-way cord, allows direct or remote plug in....


Universal Security Instruments MC304SB Carbon Monoxide Smart Alarm with 10 Year Sealed Battery
Universal Security Instruments MC304SB Carbon Monoxide Smart Alarm with 10 Year Sealed Battery
By Universal Security Instruments
In Stock
$32.99
$21.28
You Save: 35%

mpn: MC304SB, ean: 0715590713338,

4.3 out of 5 stars with 57 reviews
The Universal Security Instruments MC304SB Carbon Monoxide Smart Alarm provides 10 years of continuous protection against the silent killer - carbon monoxide. Perfect for new or replacement installations, this maintenance-free alarm is suitable for h...


First Alert CO400 Battery Carbon Monoxide Alarm, White
First Alert CO400 Battery Carbon Monoxide Alarm, White
By First Alert
In Stock
$17.98

mpn: CO400, ean: 0029054000699,

4.0 out of 5 stars with 116 reviews
FIRST ALERT CO400 Battery-Powered Carbon Monoxide Alarm (No Digital Display)Uses electrochemical carbon monoxide sensor - most accurate technology available. Simple to use silence/test busson with low battery and end of life warnings. Each alarm oper...


First Alert CO5120PDBN Hardwired Carbon Monoxide Alarm with Battery Backup and Digital Display
First Alert CO5120PDBN Hardwired Carbon Monoxide Alarm with Battery Backup and Digital Display
By First Alert
In Stock
$42.31

mpn: CO5120PDBN, ean: 0029054856197,

4.9 out of 5 stars with 140 reviews
120-volt hardwired carbon monoxide alarm wires directly into your home's electrical system. Electrochemical sensor and microprocessor accurately detect carbon monoxide while minimizing false alarms. Backlit digital display allows you to view current...


Universal Security Instruments MCN400B M Series Plug-In Carbon Monoxide and Natural Gas Alarm with 9-Volt Battery Backup
Universal Security Instruments MCN400B M Series Plug-In Carbon Monoxide and Natural Gas Alarm with 9-Volt Battery Backup
By Universal Security Instruments
In Stock
$39.99
$20.30
You Save: 49%

mpn: MCN400B, ean: 0790566217249,

4.6 out of 5 stars with 49 reviews
Carbon monoxide and natural gas leaks are a silent, invisible threat to you and your family. This 2-in1 Carbon Monoxide & Natural Gas Alarm protects your home with a dual sensing alarm and Smart Alarm technology that reduces the occurrence of nuisanc...


GXG-1987 Handheld Carbon Monoxide Meter with High Precision CO Gas Tester Monitor Detector Gauge 0-1000ppm GM8805
GXG-1987 Handheld Carbon Monoxide Meter with High Precision CO Gas Tester Monitor Detector Gauge 0-1000ppm GM8805
By GXG-1987
In Stock
$69.99

mpn: C7Q1432193705017E0, ean: 0713524473822,

4.0 out of 5 stars with 106 reviews
GXG-1987 Handheld Carbon Monoxide Meter with High Precision CO Gas Tester Monitor Detector Gauge 0-1000ppm GM8805 GXG-1987 GM8805 Carbon monoxide Meter can detect carbon monoxide concentration, observing concentration value all the time. It has quit...


First Alert CO605 Frust Free Carbon Monoxide Plug-in Alarm with Battery Backup
First Alert CO605 Frust Free Carbon Monoxide Plug-in Alarm with Battery Backup
By First Alert
In Stock
$41.99
$34.15
You Save: 19%

mpn: CO605, ean: 0029054015914,

4.2 out of 5 stars with 135 reviews
The First Alert CO605 plug-in carbon monoxide alarm with battery backup uses an electrochemical carbon monoxide sensor-the most accurate technology available. The alarm easily plugs into any standard outlet with no additional mounting. Battery backup...


First Alert CO250 CO Alarm
First Alert CO250 CO Alarm
By First Alert
In Stock
$29.99
$27.41
You Save: 9%

mpn: CO250RVA, ean: 0029054016317,

4.1 out of 5 stars with 13 reviews
RV Approved Battery Powered CO Alarm with silence feature and alkaline batteryOriginal BRK Replacement CO Alarm - Replaces the original BRK alarm that came with your RV, model CO250RVA. Hinged Cover Design - Allows for fast, easy installation and bat...


2 Pack Carbon Monoxide Detector Alarm CO Gas Sensor Detector with Digital Display Alarm Clock Warning for Home (3 AA Battery not Included)
2 Pack Carbon Monoxide Detector Alarm CO Gas Sensor Detector with Digital Display Alarm Clock Warning for Home (3 AA Battery not Included)
By Dewsshine
In Stock
$18.99

ean: 0796358273080,

4.1 out of 5 stars with 114 reviews
Specifications: Alarm tone: 85 dB Display: LCD blue backlight digital display Low power alarm: a "built" every 30 seconds is a clue Power supply: 3 *AA batteries (not included) Alarm standard: 50PPM: Adult can bear within 8 hours,alarm within...


Kidde KN-COPP-B-LPM Battery-Operated Carbon Monoxide Alarm with Digital Display
Kidde KN-COPP-B-LPM Battery-Operated Carbon Monoxide Alarm with Digital Display
By GDM HOME
In Stock
$24.76

mpn: 1, ean: 6953278382283,

4.4 out of 5 stars with 70 reviews
Kidde KN-COPP-B-LPM Battery-Operated Carbon Monoxide Alarm with Digital DisplayFeaturesLarge digital display is easy to read even in low-light conditionsPeak-level memory displays the highest CO concentration measured since the last resetMeets the re...



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