Shop ceiling mounted smoke alarm

Sponsored
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$237.60
System Sensor Duct Smoke Detector: 120V AC/24V AC/DC Volt, Sound Alert, Duct Mount, 5 in Overall Ht Model: D4120
Grainger
1
$237.60
System Sensor Duct Smoke Detector: 120V AC/24V AC/DC Volt, Sound Alert, Duct Mount, 5 in Overall Ht Model: D4120
Grainger
$294.24
Air Products And Controls Duct Smoke Detector: 115V AC/230V AC/24V AC/24V DC Volt, Light Alert Model: RT-3000-P
Grainger
$294.24
Air Products And Controls Duct Smoke Detector: 115V AC/230V AC/24V AC/24V DC Volt, Light Alert Model: RT-3000-P
Grainger
$25.99
Kesymo 1Pack Upgraded Interlinked Smoke Carbon Monoxide Detector, Battery Powered&Wireless Interconnected Smoke And CO Alarm, Transmission Range Of
Amazon.com
180
$25.99
Kesymo 1Pack Upgraded Interlinked Smoke Carbon Monoxide Detector, Battery Powered&Wireless Interconnected Smoke And CO Alarm, Transmission Range Of
Amazon.com
$175.25
Air Products And Controls Duct Smoke Detector: 115V AC/230V AC/24V AC/24V DC Volt, Light Alert Model: HS-100-P
Grainger
$175.25
Air Products And Controls Duct Smoke Detector: 115V AC/230V AC/24V AC/24V DC Volt, Light Alert Model: HS-100-P
Grainger
$41.99
System Sensor Smoke Detector Ceiling Mount Horn Alarm Strobe White
eBay
$41.99
System Sensor Smoke Detector Ceiling Mount Horn Alarm Strobe White
eBay
$125.00
DS939 BOSCH - Fire Safety & Smoke Detector Supplies
Radwell.com
$125.00
DS939 BOSCH - Fire Safety & Smoke Detector Supplies
Radwell.com
$58.50
$65.00
Kidde Smoke And Carbon Monoxide Detector, Hardwired With AA Battery Backup, LED Status Lights, Interconnected, 85 Db Alarm, 5 Inches
Amazon.com
1K+
Free shipping
10% off
$58.50
$65.00
Kidde Smoke And Carbon Monoxide Detector, Hardwired With AA Battery Backup, LED Status Lights, Interconnected, 85 Db Alarm, 5 Inches
Amazon.com
$235.00
D2 HONEYWELL - Fire Safety & Smoke Detector Supplies
Radwell.com
$235.00
D2 HONEYWELL - Fire Safety & Smoke Detector Supplies
Radwell.com
$94.00
Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup Smoke Alarm, Interconnectable, LED Warning Light Indicators, 2 Pack
Amazon.com
466
Free shipping
$94.00
Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup Smoke Alarm, Interconnectable, LED Warning Light Indicators, 2 Pack
Amazon.com
$76.99
SYSTEM SENSOR 4WTA-B 4WTAB 12/24 VDC, Photoelectric Smoke Detector With Thermal, Sounder, And Base
Amazon.com
43
Free shipping
$76.99
SYSTEM SENSOR 4WTA-B 4WTAB 12/24 VDC, Photoelectric Smoke Detector With Thermal, Sounder, And Base
Amazon.com
$192.92
Kidde Fire Safety Smoke And Carbon Monoxide Alarm 85 Db Decibel Rating, Aa Battery Not Included, Indicating Light 21007450 - 61972857
Penn Tool Co
1K+
$192.92
Kidde Fire Safety Smoke And Carbon Monoxide Alarm 85 Db Decibel Rating, Aa Battery Not Included, Indicating Light 21007450 - 61972857
Penn Tool Co
$110.99
System Sensor Duct Smoke Detector: 120V/24V Volt, 65 Ma Current, Sound Alert, Duct Mount, Round Model: 2D51
Grainger
$110.99
System Sensor Duct Smoke Detector: 120V/24V Volt, 65 Ma Current, Sound Alert, Duct Mount, Round Model: 2D51
Grainger
$215.13
D2A HONEYWELL - Fire Safety & Smoke Detector Supplies
Radwell.com
$215.13
D2A HONEYWELL - Fire Safety & Smoke Detector Supplies
Radwell.com
$178.24
Air Products And Controls Duct Smoke Detector: 115V AC/230V AC/24V AC/24V DC Volt, Light Alert, Gray Model: SL-2000-P
Grainger
4
$178.24
Air Products And Controls Duct Smoke Detector: 115V AC/230V AC/24V AC/24V DC Volt, Light Alert, Gray Model: SL-2000-P
Grainger
$72.58
Kidde KN-COPE-I (21007624) (KN-COPE-IC) AC Wire-In With Battery Back-Up Combination Carbon Monoxide & Smoke Alarm With Photoelectric Sensor (Upgraded
Electric Bargain Store
13
$72.58
Kidde KN-COPE-I (21007624) (KN-COPE-IC) AC Wire-In With Battery Back-Up Combination Carbon Monoxide & Smoke Alarm With Photoelectric Sensor (Upgraded
Electric Bargain Store
$52.99
$64.99
First Alert Combination Smoke & Carbon Monoxide Alarm, Interconnect Hardwire Detector With Battery Backup, SMICO100-AC, 1-Pack
Amazon.com
27K+
Free shipping
18% off
$52.99
$64.99
First Alert Combination Smoke & Carbon Monoxide Alarm, Interconnect Hardwire Detector With Battery Backup, SMICO100-AC, 1-Pack
Amazon.com
$358.33
System Sensor Duct Smoke Detector: 20V AC/24V AC/24V DC Volt, 100 Ma Current, Duct Mount, White Model: D4120W
Grainger
9
$358.33
System Sensor Duct Smoke Detector: 20V AC/24V AC/24V DC Volt, 100 Ma Current, Duct Mount, White Model: D4120W
Grainger
$303.82
System Sensor Duct Smoke Detector: 120V AC/24V AC/DC Volt, 65 Ma @ 24V DC Current, Duct Mount Model: DUCTSD
Grainger
$303.82
System Sensor Duct Smoke Detector: 120V AC/24V AC/DC Volt, 65 Ma @ 24V DC Current, Duct Mount Model: DUCTSD
Grainger
$49.99
$77.77
Kidde P3010H Worry-Free Hallway Smoke Alarm With Safety Light And 10 Year Sealed Battery
Amazon.com
Free shipping
35% off
$49.99
$77.77
Kidde P3010H Worry-Free Hallway Smoke Alarm With Safety Light And 10 Year Sealed Battery
Amazon.com
$175.62
Air Products And Controls Duct Smoke Detector: 115V AC/230V AC/24V AC/24V DC Volt, Light Alert, Gray Model: SM-501-P
Grainger
$175.62
Air Products And Controls Duct Smoke Detector: 115V AC/230V AC/24V AC/24V DC Volt, Light Alert, Gray Model: SM-501-P
Grainger
$391.73
Edwards Signaling Duct Smoke Detector: 120V AC/20 To 31V DC/220 Or 240V AC/24V AC/24V DC Volt Model: SD-4WJ
Grainger
$391.73
Edwards Signaling Duct Smoke Detector: 120V AC/20 To 31V DC/220 Or 240V AC/24V AC/24V DC Volt Model: SD-4WJ
Grainger
$173.00
DH100ACDCP HONEYWELL - Fire Safety & Smoke Detector Supplies
Radwell.com
$173.00
DH100ACDCP HONEYWELL - Fire Safety & Smoke Detector Supplies
Radwell.com
$27.97
Battery Operated Photoelectric Smoke Alarm 85Db Loud, LED Test Button, Ceiling Mounted Home Bedroom Smoke Detector 2Pcs No Batteries
Inspire Uplift
$27.97
Battery Operated Photoelectric Smoke Alarm 85Db Loud, LED Test Button, Ceiling Mounted Home Bedroom Smoke Detector 2Pcs No Batteries
Inspire Uplift
$48.98
$51.99
Kidde CUACFEX Hardwired Smoke And Carbon Monoxide Alarm With AA Battery Backup, Interconnectable, Model 21033083
Amazon.com
2
Free shipping
$48.98
$51.99
Kidde CUACFEX Hardwired Smoke And Carbon Monoxide Alarm With AA Battery Backup, Interconnectable, Model 21033083
Amazon.com
$55.23
$64.99
New 2025 First Alert SMCO410 Z-Wave Battery-Powered Smoke Detector & Carbon Monoxide Alarm, Works With Ring Alarm Base Station, Single Pack, White
Amazon.com
5K+
Free shipping
15% off
$55.23
$64.99
New 2025 First Alert SMCO410 Z-Wave Battery-Powered Smoke Detector & Carbon Monoxide Alarm, Works With Ring Alarm Base Station, Single Pack, White
Amazon.com
$128.00
4WTR-B HONEYWELL - Fire Safety & Smoke Detector Supplies
Radwell.com
2
$128.00
4WTR-B HONEYWELL - Fire Safety & Smoke Detector Supplies
Radwell.com
$96.99
$193.98
Battery Operated Photoelectric Smoke Detector With 85Db Alarm, LED Indicator & Test Button Ceiling Mounted Home Smoke - 4Pcs | Inspired Finds
Inspire Uplift
Free shipping
30-day returns (most items)
50% off
$96.99
$193.98
Battery Operated Photoelectric Smoke Detector With 85Db Alarm, LED Indicator & Test Button Ceiling Mounted Home Smoke - 4Pcs | Inspired Finds
Inspire Uplift
$62.08
BRK Electronics First Alert ZCOMBO-G Two 1.5V AA Battery Operated Photoelectric Smoke And Carbon Monoxide Combo Alarm (Upgraded To SMCO410)
Electric Bargain Store
$62.08
BRK Electronics First Alert ZCOMBO-G Two 1.5V AA Battery Operated Photoelectric Smoke And Carbon Monoxide Combo Alarm (Upgraded To SMCO410)
Electric Bargain Store
$114.99
$229.98
Battery Operated Photoelectric Smoke Detector With 85Db Alarm, LED Indicator & Test Button Ceiling Mounted Home Smoke - 6Pcs | Inspired Finds
Inspire Uplift
Free shipping
30-day returns (most items)
50% off
$114.99
$229.98
Battery Operated Photoelectric Smoke Detector With 85Db Alarm, LED Indicator & Test Button Ceiling Mounted Home Smoke - 6Pcs | Inspired Finds
Inspire Uplift
$54.99
Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup, Interconnectable, LED Warning Light Indicators
Amazon.com
324
Free shipping
$54.99
Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup, Interconnectable, LED Warning Light Indicators
Amazon.com
$141.99
$240.02
System Sensor D4120 4-Wire Photoelectric Low-Flow Duct Smoke Detector 24VDC/120VAC Replaces DH100ACDCLP
Voomi Supply
30-day returns (most items)
40% off
$141.99
$240.02
System Sensor D4120 4-Wire Photoelectric Low-Flow Duct Smoke Detector 24VDC/120VAC Replaces DH100ACDCLP
Voomi Supply
$192.29
$340.96
System Sensor D4120W Watertight 4-Wire Photoelectric Duct Smoke Detector 24VDC/120VAC
Voomi Supply
30-day returns (most items)
43% off
$192.29
$340.96
System Sensor D4120W Watertight 4-Wire Photoelectric Duct Smoke Detector 24VDC/120VAC
Voomi Supply
$202.81
D4120A HONEYWELL - Fire Safety & Smoke Detector Supplies
Radwell.com
$202.81
D4120A HONEYWELL - Fire Safety & Smoke Detector Supplies
Radwell.com
$34.99
First Alert SM100V-AC, Interconnect Hardwire Smoke Alarm With Battery Backup & Voice Alerts, 1-Pack
Amazon.com
108
$34.99
First Alert SM100V-AC, Interconnect Hardwire Smoke Alarm With Battery Backup & Voice Alerts, 1-Pack
Amazon.com
$128.05
System Sensor Smoke Alarm: Smoke, Hardwired, Smoke Detector, Photoelectric, Hardwired, Round, 3 Yr Model: 4WTA-B
Grainger
4
$128.05
System Sensor Smoke Alarm: Smoke, Hardwired, Smoke Detector, Photoelectric, Hardwired, Round, 3 Yr Model: 4WTA-B
Grainger
$86.95
System Sensor 4WTAR-B Photoelectric i3 Smoke Detector, 4-Wire, Thermal Sensor, Built-In Sounder, Form C Relay
JMAC
$86.95
System Sensor 4WTAR-B Photoelectric i3 Smoke Detector, 4-Wire, Thermal Sensor, Built-In Sounder, Form C Relay
JMAC
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    Shop ceiling mounted smoke alarm

    Sponsored
    About our ads
    $237.60
    System Sensor Duct Smoke Detector: 120V AC/24V AC/DC Volt, Sound Alert, Duct Mount, 5 in Overall Ht Model: D4120
    Grainger
    1
    $237.60
    System Sensor Duct Smoke Detector: 120V AC/24V AC/DC Volt, Sound Alert, Duct Mount, 5 in Overall Ht Model: D4120
    Grainger
    $294.24
    Air Products And Controls Duct Smoke Detector: 115V AC/230V AC/24V AC/24V DC Volt, Light Alert Model: RT-3000-P
    Grainger
    $294.24
    Air Products And Controls Duct Smoke Detector: 115V AC/230V AC/24V AC/24V DC Volt, Light Alert Model: RT-3000-P
    Grainger
    $25.99
    Kesymo 1Pack Upgraded Interlinked Smoke Carbon Monoxide Detector, Battery Powered&Wireless Interconnected Smoke And CO Alarm, Transmission Range Of
    Amazon.com
    180
    $25.99
    Kesymo 1Pack Upgraded Interlinked Smoke Carbon Monoxide Detector, Battery Powered&Wireless Interconnected Smoke And CO Alarm, Transmission Range Of
    Amazon.com
    $175.25
    Air Products And Controls Duct Smoke Detector: 115V AC/230V AC/24V AC/24V DC Volt, Light Alert Model: HS-100-P
    Grainger
    $175.25
    Air Products And Controls Duct Smoke Detector: 115V AC/230V AC/24V AC/24V DC Volt, Light Alert Model: HS-100-P
    Grainger
    $41.99
    System Sensor Smoke Detector Ceiling Mount Horn Alarm Strobe White
    eBay
    $41.99
    System Sensor Smoke Detector Ceiling Mount Horn Alarm Strobe White
    eBay
    $125.00
    DS939 BOSCH - Fire Safety & Smoke Detector Supplies
    Radwell.com
    $125.00
    DS939 BOSCH - Fire Safety & Smoke Detector Supplies
    Radwell.com
    $58.50
    $65.00
    Kidde Smoke And Carbon Monoxide Detector, Hardwired With AA Battery Backup, LED Status Lights, Interconnected, 85 Db Alarm, 5 Inches
    Amazon.com
    1K+
    Free shipping
    10% off
    $58.50
    $65.00
    Kidde Smoke And Carbon Monoxide Detector, Hardwired With AA Battery Backup, LED Status Lights, Interconnected, 85 Db Alarm, 5 Inches
    Amazon.com
    $235.00
    D2 HONEYWELL - Fire Safety & Smoke Detector Supplies
    Radwell.com
    $235.00
    D2 HONEYWELL - Fire Safety & Smoke Detector Supplies
    Radwell.com
    $94.00
    Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup Smoke Alarm, Interconnectable, LED Warning Light Indicators, 2 Pack
    Amazon.com
    466
    Free shipping
    $94.00
    Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup Smoke Alarm, Interconnectable, LED Warning Light Indicators, 2 Pack
    Amazon.com
    $76.99
    SYSTEM SENSOR 4WTA-B 4WTAB 12/24 VDC, Photoelectric Smoke Detector With Thermal, Sounder, And Base
    Amazon.com
    43
    Free shipping
    $76.99
    SYSTEM SENSOR 4WTA-B 4WTAB 12/24 VDC, Photoelectric Smoke Detector With Thermal, Sounder, And Base
    Amazon.com
    $192.92
    Kidde Fire Safety Smoke And Carbon Monoxide Alarm 85 Db Decibel Rating, Aa Battery Not Included, Indicating Light 21007450 - 61972857
    Penn Tool Co
    1K+
    $192.92
    Kidde Fire Safety Smoke And Carbon Monoxide Alarm 85 Db Decibel Rating, Aa Battery Not Included, Indicating Light 21007450 - 61972857
    Penn Tool Co
    $110.99
    System Sensor Duct Smoke Detector: 120V/24V Volt, 65 Ma Current, Sound Alert, Duct Mount, Round Model: 2D51
    Grainger
    $110.99
    System Sensor Duct Smoke Detector: 120V/24V Volt, 65 Ma Current, Sound Alert, Duct Mount, Round Model: 2D51
    Grainger
    $215.13
    D2A HONEYWELL - Fire Safety & Smoke Detector Supplies
    Radwell.com
    $215.13
    D2A HONEYWELL - Fire Safety & Smoke Detector Supplies
    Radwell.com
    $178.24
    Air Products And Controls Duct Smoke Detector: 115V AC/230V AC/24V AC/24V DC Volt, Light Alert, Gray Model: SL-2000-P
    Grainger
    4
    $178.24
    Air Products And Controls Duct Smoke Detector: 115V AC/230V AC/24V AC/24V DC Volt, Light Alert, Gray Model: SL-2000-P
    Grainger
    $72.58
    Kidde KN-COPE-I (21007624) (KN-COPE-IC) AC Wire-In With Battery Back-Up Combination Carbon Monoxide & Smoke Alarm With Photoelectric Sensor (Upgraded
    Electric Bargain Store
    13
    $72.58
    Kidde KN-COPE-I (21007624) (KN-COPE-IC) AC Wire-In With Battery Back-Up Combination Carbon Monoxide & Smoke Alarm With Photoelectric Sensor (Upgraded
    Electric Bargain Store
    $52.99
    $64.99
    First Alert Combination Smoke & Carbon Monoxide Alarm, Interconnect Hardwire Detector With Battery Backup, SMICO100-AC, 1-Pack
    Amazon.com
    27K+
    Free shipping
    18% off
    $52.99
    $64.99
    First Alert Combination Smoke & Carbon Monoxide Alarm, Interconnect Hardwire Detector With Battery Backup, SMICO100-AC, 1-Pack
    Amazon.com
    $358.33
    System Sensor Duct Smoke Detector: 20V AC/24V AC/24V DC Volt, 100 Ma Current, Duct Mount, White Model: D4120W
    Grainger
    9
    $358.33
    System Sensor Duct Smoke Detector: 20V AC/24V AC/24V DC Volt, 100 Ma Current, Duct Mount, White Model: D4120W
    Grainger
    $303.82
    System Sensor Duct Smoke Detector: 120V AC/24V AC/DC Volt, 65 Ma @ 24V DC Current, Duct Mount Model: DUCTSD
    Grainger
    $303.82
    System Sensor Duct Smoke Detector: 120V AC/24V AC/DC Volt, 65 Ma @ 24V DC Current, Duct Mount Model: DUCTSD
    Grainger