Shop hardwired smoke alarms

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$249.99
$269.97
Kidde Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Voice Alerts, Interconnectable LED Warning Light Indicators, 4 Pack
Amazon.com
167
Free shipping
$249.99
$269.97
Kidde Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Voice Alerts, Interconnectable LED Warning Light Indicators, 4 Pack
Amazon.com
167
$101.38
Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup Smoke Alarm, Interconnectable, LED Warning Light Indicators, 2 Pack
Amazon.com
375
Free shipping
$101.38
Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup Smoke Alarm, Interconnectable, LED Warning Light Indicators, 2 Pack
Amazon.com
375
$19.88
First Alert 9120B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)
Electric Bargain Store
29
$19.88
First Alert 9120B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)
Electric Bargain Store
29
$95.79
Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup, Voice Alerts, Interconnectable, LED Warning Light Indicators, 2 Pack
Amazon.com
464
Free shipping
$95.79
Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup, Voice Alerts, Interconnectable, LED Warning Light Indicators, 2 Pack
Amazon.com
464
$19.88
BRK Electronics First Alert 4120B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)
Electric Bargain Store
10
$19.88
BRK Electronics First Alert 4120B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)
Electric Bargain Store
10
$19.88
BRK Electronics First Alert 9120B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)
Electric Bargain Store
5
$19.88
BRK Electronics First Alert 9120B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)
Electric Bargain Store
5
$19.88
First Alert 9120BFF 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)
Electric Bargain Store
17K+
$19.88
First Alert 9120BFF 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)
Electric Bargain Store
17K+
$29.88
Kidde I4618ac Firex Hardwired Smoke Alarm With Battery Backup (Upgraded To SMACFEX-20-9003)
Electric Bargain Store
228
$29.88
Kidde I4618ac Firex Hardwired Smoke Alarm With Battery Backup (Upgraded To SMACFEX-20-9003)
Electric Bargain Store
228
$78.95
Hardwired Connected Smoke And Carbon Monoxide Detector With 2 AA Batteries Back Up Voice Alert Smoke And CO Alarm 2-Pack
Home Depot
10
Free shipping
$78.95
Hardwired Connected Smoke And Carbon Monoxide Detector With 2 AA Batteries Back Up Voice Alert Smoke And CO Alarm 2-Pack
Home Depot
10
$104.02
Gentex Temporal Hardwired Photoelectric Smoke Alarm W/ Relay Contacts S1209F
DkHardware.com
10% Off*
$104.02
Gentex Temporal Hardwired Photoelectric Smoke Alarm W/ Relay Contacts S1209F
DkHardware.com
10% Off*
$37.97
Hardwired And 10-Year Battery Backup Smoke Detector With Ionization Sensor
Home Depot
In store
34
Free shipping
Curbside
$37.97
Hardwired And 10-Year Battery Backup Smoke Detector With Ionization Sensor
Home Depot
34
$405.97
SD-2W Edwards Two-Wire Smoke Detector
Valin Process Control Solutions
$405.97
SD-2W Edwards Two-Wire Smoke Detector
Valin Process Control Solutions
$138.95
Any Space-Smart Smoke And Carbon Monoxide Detector And Alarm-Hardwired With Battery Backup PL1AS
Home Depot
Free shipping
$138.95
Any Space-Smart Smoke And Carbon Monoxide Detector And Alarm-Hardwired With Battery Backup PL1AS
Home Depot
Free shipping
$32.98
$59.97
Kidde 21032064 Smart Smoke Hardwired And Voice Alerts Detector
PrairieGrit
45% off
$32.98
$59.97
Kidde 21032064 Smart Smoke Hardwired And Voice Alerts Detector
PrairieGrit
$26.50
Kidde KN-COSM-IBA Hardwired 120V Electrochemical/Ionization Carbon Monoxide And Smoke Alarm
WhiteStyle
$26.50
Kidde KN-COSM-IBA Hardwired 120V Electrochemical/Ionization Carbon Monoxide And Smoke Alarm
WhiteStyle
$70.23
$106.74
Kidde KN-COSM-IBA Hardwire Combination Smoke/Carbon Monoxide Alarm With Battery
mihomemy
34% off
$70.23
$106.74
Kidde KN-COSM-IBA Hardwire Combination Smoke/Carbon Monoxide Alarm With Battery
mihomemy
$37.77
$50.99
X-Sense Hardwired Combination Smoke And Carbon Monoxide Detector, Hardwired Interconnected Smoke And CO Detector Alarm With Replaceable Battery Backup, XP04 Pack Of 2
vyroqi.com
25% off
$37.77
$50.99
X-Sense Hardwired Combination Smoke And Carbon Monoxide Detector, Hardwired Interconnected Smoke And CO Detector Alarm With Replaceable Battery Backup, XP04 Pack Of 2
vyroqi.com
$17.31
$31.47
Kidde 21031482 Hardwired Smoke Detector With Interconnected Alarm And LED Warning Lights
PrairieGrit
43
44% off
$17.31
$31.47
Kidde 21031482 Hardwired Smoke Detector With Interconnected Alarm And LED Warning Lights
PrairieGrit
43
$59.93
$80.91
Kidde Smoke Carbon Monoxide Detector, Hardwired, Interconnect Combination Smoke CO Alarm With Battery Backup, Voice Alert, Pack Of 2 Pack Of 2
vyroqi.com
25% off
$59.93
$80.91
Kidde Smoke Carbon Monoxide Detector, Hardwired, Interconnect Combination Smoke CO Alarm With Battery Backup, Voice Alert, Pack Of 2 Pack Of 2
vyroqi.com
$37.77
$50.99
X-Sense Hardwired Combination Smoke And Carbon Monoxide Detector, Hardwired Interconnected Smoke And CO Detector Alarm With Replaceable Battery Backup, XP04 Pack Of 2
cintiapoker.com
25% off
$37.77
$50.99
X-Sense Hardwired Combination Smoke And Carbon Monoxide Detector, Hardwired Interconnected Smoke And CO Detector Alarm With Replaceable Battery Backup, XP04 Pack Of 2
cintiapoker.com
$115.99
X-Sense Hardwired Combination Smoke And Carbon Monoxide Detector, Hardwired Interconnected Smoke And CO Detector Alarm With Replaceable Battery Backup
Walmart
58
Free shipping
$115.99
X-Sense Hardwired Combination Smoke And Carbon Monoxide Detector, Hardwired Interconnected Smoke And CO Detector Alarm With Replaceable Battery Backup
Walmart
58
$9.99
Kidde Smoke Detector Hardwired Smoke Alarm With Battery Backup i12060
WhiteStyle
$9.99
Kidde Smoke Detector Hardwired Smoke Alarm With Battery Backup i12060
WhiteStyle
$25.72
$46.77
Kidde 21033154 Hardwired Smoke Detector With 10-Year Battery Backup, Voice Alerts, Interconnectable And LED Warning Lights 21033154
PrairieGrit
67
45% off
$25.72
$46.77
Kidde 21033154 Hardwired Smoke Detector With 10-Year Battery Backup, Voice Alerts, Interconnectable And LED Warning Lights 21033154
PrairieGrit
67
$87.80
$193.16
Kidde KN-COSM-IBA Hardwire Combination Smoke/Carbon Monoxide Alarm With Battery
ventalibresa.com
54% off
$87.80
$193.16
Kidde KN-COSM-IBA Hardwire Combination Smoke/Carbon Monoxide Alarm With Battery
ventalibresa.com
$17.99
Kidde Smoke Detector Hardwired Smoke Alarm With Battery Backup i12060
WhiteStyle
$17.99
Kidde Smoke Detector Hardwired Smoke Alarm With Battery Backup i12060
WhiteStyle
$87.80
$193.16
Kidde KN-COSM-IBA Hardwire Combination Smoke/Carbon Monoxide Alarm With Battery
homeowneremails.com
54% off
$87.80
$193.16
Kidde KN-COSM-IBA Hardwire Combination Smoke/Carbon Monoxide Alarm With Battery
homeowneremails.com
$69.98
$98.67
First Alert Hardwired Smoke U0026 Co Home Value Pack
vyroqi.com
29% off
$69.98
$98.67
First Alert Hardwired Smoke U0026 Co Home Value Pack
vyroqi.com
$58.99
$83.18
First Alert Onelink Smart Smoke And Carbon Monoxide Alarm (Hardwired)
cintiapoker.com
29% off
$58.99
$83.18
First Alert Onelink Smart Smoke And Carbon Monoxide Alarm (Hardwired)
cintiapoker.com
$34.99
$45.49
First Alert Hardwired AC Smoke And Carbon Monoxide Detector With 10 Year Sealed Battery Backup, Brk SC9120LBL
Cheekyhost USA
23% off
$34.99
$45.49
First Alert Hardwired AC Smoke And Carbon Monoxide Detector With 10 Year Sealed Battery Backup, Brk SC9120LBL
Cheekyhost USA
$100.22
Smoke Detector, Hard Wired, 12, 24 Volt 20271
Go2marine
30-day returns (most items)
$100.22
Smoke Detector, Hard Wired, 12, 24 Volt 20271
Go2marine
30-day returns
$87.80
$193.16
Kidde KN-COSM-IBA Hardwire Combination Smoke/Carbon Monoxide Alarm With Battery
wtmaccelerator
54% off
$87.80
$193.16
Kidde KN-COSM-IBA Hardwire Combination Smoke/Carbon Monoxide Alarm With Battery
wtmaccelerator
$29.99
Universal Security Instruments Hardwired Smoke Detector -
eBay
Free shipping
Used
$29.99
Universal Security Instruments Hardwired Smoke Detector -
eBay
Free shipping
$46.00
Kidde CUACFEX Hardwired Smoke & CO Alarm, AA Backup, Photo Sensor NEW
RES LLC Store Main
30-day returns (most items)
$46.00
Kidde CUACFEX Hardwired Smoke & CO Alarm, AA Backup, Photo Sensor NEW
RES LLC Store Main
30-day returns
$78.84
Kidde i4618 4-Pack Hardwired Smoke Alarm With Ionization Sensor, 120V AC, 9V Battery Backup
homeowneremails.com
$78.84
Kidde i4618 4-Pack Hardwired Smoke Alarm With Ionization Sensor, 120V AC, 9V Battery Backup
homeowneremails.com
$6.91
$14.44
12V Voltage Wired Smoke Leak Fire Detector Alarm Sensor Stand Alone For Wired Terminal Alarm System
Aliexpress
Free shipping
52% off
$6.91
$14.44
12V Voltage Wired Smoke Leak Fire Detector Alarm Sensor Stand Alone For Wired Terminal Alarm System
Aliexpress
Free shipping
$100.56
Kidde 21033083 Firex 21033083 Combination Smoke & Carbon Monoxide Alarm Hardwired With AA Backup Battery
Voomi Supply
30-day returns (most items)
$100.56
Kidde 21033083 Firex 21033083 Combination Smoke & Carbon Monoxide Alarm Hardwired With AA Backup Battery
Voomi Supply
30-day returns
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    Shop hardwired smoke alarms

    Sponsored
    About our ads
    $249.99
    $269.97
    Kidde Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Voice Alerts, Interconnectable LED Warning Light Indicators, 4 Pack
    Amazon.com
    167
    Free shipping
    $249.99
    $269.97
    Kidde Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Voice Alerts, Interconnectable LED Warning Light Indicators, 4 Pack
    Amazon.com
    167
    $101.38
    Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup Smoke Alarm, Interconnectable, LED Warning Light Indicators, 2 Pack
    Amazon.com
    375
    Free shipping
    $101.38
    Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup Smoke Alarm, Interconnectable, LED Warning Light Indicators, 2 Pack
    Amazon.com
    375
    $19.88
    First Alert 9120B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)
    Electric Bargain Store
    29
    $19.88
    First Alert 9120B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)
    Electric Bargain Store
    29
    $95.79
    Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup, Voice Alerts, Interconnectable, LED Warning Light Indicators, 2 Pack
    Amazon.com
    464
    Free shipping
    $95.79
    Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup, Voice Alerts, Interconnectable, LED Warning Light Indicators, 2 Pack
    Amazon.com
    464
    $19.88
    BRK Electronics First Alert 4120B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)
    Electric Bargain Store
    10
    $19.88
    BRK Electronics First Alert 4120B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)
    Electric Bargain Store
    10
    $19.88
    BRK Electronics First Alert 9120B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)
    Electric Bargain Store
    5
    $19.88
    BRK Electronics First Alert 9120B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)
    Electric Bargain Store
    5
    $19.88
    First Alert 9120BFF 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)
    Electric Bargain Store
    17K+
    $19.88
    First Alert 9120BFF 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)
    Electric Bargain Store
    17K+
    $29.88
    Kidde I4618ac Firex Hardwired Smoke Alarm With Battery Backup (Upgraded To SMACFEX-20-9003)
    Electric Bargain Store
    228
    $29.88
    Kidde I4618ac Firex Hardwired Smoke Alarm With Battery Backup (Upgraded To SMACFEX-20-9003)
    Electric Bargain Store
    228
    $78.95
    Hardwired Connected Smoke And Carbon Monoxide Detector With 2 AA Batteries Back Up Voice Alert Smoke And CO Alarm 2-Pack
    Home Depot
    10
    Free shipping
    $78.95
    Hardwired Connected Smoke And Carbon Monoxide Detector With 2 AA Batteries Back Up Voice Alert Smoke And CO Alarm 2-Pack
    Home Depot
    10
    $104.02
    Gentex Temporal Hardwired Photoelectric Smoke Alarm W/ Relay Contacts S1209F
    DkHardware.com
    10% Off*
    $104.02
    Gentex Temporal Hardwired Photoelectric Smoke Alarm W/ Relay Contacts S1209F
    DkHardware.com
    10% Off*
    $37.97
    Hardwired And 10-Year Battery Backup Smoke Detector With Ionization Sensor
    Home Depot
    In store
    34
    Free shipping
    Curbside
    $37.97
    Hardwired And 10-Year Battery Backup Smoke Detector With Ionization Sensor
    Home Depot
    34
    $405.97
    SD-2W Edwards Two-Wire Smoke Detector
    Valin Process Control Solutions
    $405.97
    SD-2W Edwards Two-Wire Smoke Detector
    Valin Process Control Solutions
    $138.95
    Any Space-Smart Smoke And Carbon Monoxide Detector And Alarm-Hardwired With Battery Backup PL1AS
    Home Depot
    Free shipping
    $138.95
    Any Space-Smart Smoke And Carbon Monoxide Detector And Alarm-Hardwired With Battery Backup PL1AS
    Home Depot
    Free shipping
    $32.98
    $59.97
    Kidde 21032064 Smart Smoke Hardwired And Voice Alerts Detector
    PrairieGrit
    45% off
    $32.98
    $59.97
    Kidde 21032064 Smart Smoke Hardwired And Voice Alerts Detector
    PrairieGrit
    $26.50
    Kidde KN-COSM-IBA Hardwired 120V Electrochemical/Ionization Carbon Monoxide And Smoke Alarm
    WhiteStyle
    $26.50
    Kidde KN-COSM-IBA Hardwired 120V Electrochemical/Ionization Carbon Monoxide And Smoke Alarm
    WhiteStyle
    $70.23
    $106.74
    Kidde KN-COSM-IBA Hardwire Combination Smoke/Carbon Monoxide Alarm With Battery
    mihomemy
    34% off
    $70.23
    $106.74
    Kidde KN-COSM-IBA Hardwire Combination Smoke/Carbon Monoxide Alarm With Battery
    mihomemy
    $37.77
    $50.99
    X-Sense Hardwired Combination Smoke And Carbon Monoxide Detector, Hardwired Interconnected Smoke And CO Detector Alarm With Replaceable Battery Backup, XP04 Pack Of 2
    vyroqi.com
    25% off
    $37.77
    $50.99
    X-Sense Hardwired Combination Smoke And Carbon Monoxide Detector, Hardwired Interconnected Smoke And CO Detector Alarm With Replaceable Battery Backup, XP04 Pack Of 2
    vyroqi.com
    $17.31
    $31.47
    Kidde 21031482 Hardwired Smoke Detector With Interconnected Alarm And LED Warning Lights
    PrairieGrit
    43
    44% off
    $17.31
    $31.47
    Kidde 21031482 Hardwired Smoke Detector With Interconnected Alarm And LED Warning Lights
    PrairieGrit
    43