Best Hardwired Smoke Alarms Updated February 2026
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Best Hardwired Smoke Alarms
2026 Buyer's GuideUpdated February 2026
Advertiser disclosure About our rankings
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Best Hardwired Smoke Alarm
1

9.9

Kidde Hardwired Smoke Detector, 10-Year Battery Backup, Interconnectable, LED Warning Light Indicators, 20SA10
Ease of installation
Battery life
Save 10%
3K+ bought in past month
Best Hardwired Smoke Alarm

9.9

1
Kidde Hardwired Smoke Detector, 10-Year Battery Backup, Interconnectable, LED Warning Light Indicators, 20SA10
Ease of installation
Battery life
3K+ bought in past month
Save 10%
Best Hardwired Smoke Alarm

9.9

1
Kidde Hardwired Smoke Detector, 10-Year Battery Backup, Interconnectable, LED Warning Light Indicators, 20SA10
Available in:  4 sizes
Ease of installation
Battery life
3K+ bought in past month
Save 10%
Best Value
Popular
2

9.7

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 1-Pack
Ease of installation
Functionality
Smoke detector quality
Value for money
Replacement value
Fit
Save 34%
Best Value
Popular

9.7

2
First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 1-Pack
Ease of installation
Functionality
Smoke detector quality
Value for money
Replacement value
Fit
Save 34%
Best Value
Popular

9.7

2
First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 1-Pack
Available in:  4 sizes ,  2 styles ,  3 options
Ease of installation
Functionality
Smoke detector quality
Value for money
Replacement value
Fit
Save 34%
3

9.5

Kidde Hardwired Smoke Detector, AA Battery Backup, Interconnectable, LED Warning Light Indicators, 4 Pack
Ease of installation
Functionality
Smoke detector quality
Value for money
Quality
Wiring
Save 6%

9.5

3
Kidde Hardwired Smoke Detector, AA Battery Backup, Interconnectable, LED Warning Light Indicators, 4 Pack
Ease of installation
Functionality
Smoke detector quality
Value for money
Quality
Wiring
Save 6%

9.5

3
Kidde Hardwired Smoke Detector, AA Battery Backup, Interconnectable, LED Warning Light Indicators, 4 Pack
Available in:  4 sizes ,  2 styles ,  4 options
Ease of installation
Functionality
Smoke detector quality
Value for money
Quality
Wiring
Save 6%
4

9.4

First Alert BRK 9120Bff-6 Hardwired Smoke Detector with Battery Backup, 6-Pack
Ease of installation
Functionality
Replacement value
Value for money
Compatibility
Resale value
Read Full Review
Save 17%

9.4

4
First Alert BRK 9120Bff-6 Hardwired Smoke Detector with Battery Backup, 6-Pack
Ease of installation
Functionality
Replacement value
Value for money
Compatibility
Resale value
Save 17%
Read Full Review

9.4

4
First Alert BRK 9120Bff-6 Hardwired Smoke Detector with Battery Backup, 6-Pack
Read Full Review
Ease of installation
Functionality
Replacement value
Value for money
Compatibility
Resale value
Save 17%
5

9.3

Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup Smoke Alarm, Interconnectable, LED Warning Light Indicators...
Ease of installation
Smoke detector quality
Quality

9.3

5
Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup Smoke Alarm, Interconnectable, LED Warning Light Indicators...
Ease of installation
Smoke detector quality
Quality

9.3

5
Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup Smoke Alarm, Interconnectable, LED Warning Light Indicators...
Available in:  2 styles ,  3 sizes
Ease of installation
Smoke detector quality
Quality
6

9.1

Kidde Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Voice Alerts, Interconnectable LED Warning Light Indi...
Ease of installation
Smoke detector quality
Battery life
Replacement value
Read Full Review
Save 18%

9.1

6
Kidde Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Voice Alerts, Interconnectable LED Warning Light Indi...
Ease of installation
Smoke detector quality
Battery life
Replacement value
Save 18%
Read Full Review

9.1

6
Kidde Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Voice Alerts, Interconnectable LED Warning Light Indi...
Available in:  2 sizes
Read Full Review
Ease of installation
Smoke detector quality
Battery life
Replacement value
Save 18%
7

8.8

Kidde Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Interconnectable LED Warning Light Indicators, 30CUA1...
Ease of installation
Quality
Battery life
Ease of replacement
Read Full Review

8.8

7
Kidde Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Interconnectable LED Warning Light Indicators, 30CUA1...
Ease of installation
Quality
Battery life
Ease of replacement
Read Full Review

8.8

7
Kidde Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Interconnectable LED Warning Light Indicators, 30CUA1...
Available in:  2 sizes
Read Full Review
Ease of installation
Quality
Battery life
Ease of replacement
Premium Pick
8

8.7

Kidde Hardwired Smoke & Carbon Monoxide Detector for Home, 10-Year Battery Powered, LED Notifications, 3-Pack
Ease of installation
Quality
Value for money
Smoke detector quality
Premium Pick

8.7

8
Kidde Hardwired Smoke & Carbon Monoxide Detector for Home, 10-Year Battery Powered, LED Notifications, 3-Pack
Ease of installation
Quality
Value for money
Smoke detector quality
Premium Pick

8.7

8
Kidde Hardwired Smoke & Carbon Monoxide Detector for Home, 10-Year Battery Powered, LED Notifications, 3-Pack
Available in:  4 sizes ,  2 options
Ease of installation
Quality
Value for money
Smoke detector quality
9

8.6

Kidde Smoke Detector, AA Battery Powered, LED Warning Light Indicators, 1 Pack, White, 30CUAR
Ease of installation
Smoke detector quality
Quality

8.6

9
Kidde Smoke Detector, AA Battery Powered, LED Warning Light Indicators, 1 Pack, White, 30CUAR
Ease of installation
Smoke detector quality
Quality

8.6

9
Kidde Smoke Detector, AA Battery Powered, LED Warning Light Indicators, 1 Pack, White, 30CUAR
Available in:  2 styles ,  3 sizes
Ease of installation
Smoke detector quality
Quality
10

8.5

First Alert Smoke Alarm, Interconnect Hardwire Detector with Battery Backup, SMI100-AC, 3-Pack
Ease of installation
Functionality
Smoke detector quality
Value for money
Replacement value
Fit
Save 30%

8.5

10
First Alert Smoke Alarm, Interconnect Hardwire Detector with Battery Backup, SMI100-AC, 3-Pack
Ease of installation
Functionality
Smoke detector quality
Value for money
Replacement value
Fit
Save 30%

8.5

10
First Alert Smoke Alarm, Interconnect Hardwire Detector with Battery Backup, SMI100-AC, 3-Pack
Available in:  2 styles ,  4 sizes ,  3 options
Ease of installation
Functionality
Smoke detector quality
Value for money
Replacement value
Fit
Save 30%

Our Top Choice

Best Hardwired Smoke Alarm
1

9.9

Kidde Hardwired Smoke Detector, 10-Year Battery Backup, Interconnectable, LED Warning Light Indicators, 20SA10
Ease of installation
Battery life
Save 10%
3K+ bought in past month
Best Hardwired Smoke Alarm

9.9

1
Kidde Hardwired Smoke Detector, 10-Year Battery Backup, Interconnectable, LED Warning Light Indicators, 20SA10
Ease of installation
Battery life
3K+ bought in past month
Save 10%
Best Hardwired Smoke Alarm

9.9

1
Kidde Hardwired Smoke Detector, 10-Year Battery Backup, Interconnectable, LED Warning Light Indicators, 20SA10
Available in:  4 sizes
Ease of installation
Battery life
3K+ bought in past month
Save 10%
Related Categories
Hardwired Smoke DetectorHardwired Smoke DetectorKidde Smoke DetectorHardwired Dual Sensor Smoke AlarmFirst Alert 9120B Smoke DetectorFirst Alert Smoke Alarm
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Related Categories
Hardwired Smoke DetectorHardwired Smoke DetectorKidde Smoke DetectorHardwired Dual Sensor Smoke AlarmFirst Alert 9120B Smoke DetectorFirst Alert Smoke Alarm
Related Categories
Hardwired Smoke DetectorHardwired Smoke DetectorKidde Smoke DetectorHardwired Dual Sensor Smoke AlarmFirst Alert 9120B Smoke DetectorFirst Alert Smoke Alarm