First Alert Smoke Alarm, Interconnect Hardwire Detector with Battery Backup, SMI100-AC, 3-Pack

Compare price from $11.90 ~ $194.99

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JEM Systems Brk SMI100	$11.90	Delivery date & cost shown at checkout

JEM Systems Brk SMI100-Ac	$13.45	Delivery date & cost shown at checkout

Electric Bargain Store BRK First Alert SMI100 (1046832) Battery Operated Ionization Smoke Alarm	$12.98	Delivery date & cost shown at checkout

eBay First Alert 9120b/ Smi100-ac Smoke Detector Alarm Ac Powered Battery	$16.00	Delivery date & cost shown at checkout

eBay First Alert 9120b/ Smi100-ac Smoke Detector & Alarm, Ac Powered	$16.70	Delivery date & cost shown at checkout

eBay BRK Hard-Wired w/Battery Back-up Ionization Smoke Detector	$19.99	Delivery date & cost shown at checkout

eBay First Alert Smoke Alarm Hardware Replacement Electric Precision	$22.00	Delivery date & cost shown at checkout

eBay First Alert 9120B/ SMI100-AC Smoke Detector & Alarm, AC Powered Battery M47D	$25.00	Delivery date & cost shown at checkout

eBay First Alert - Smoke Alarm - Wired - Quick Connect Plug	$25.99	Delivery date & cost shown at checkout

eBay First Alert Hard-wired W/battery Back-up Ionization Smoke Detector	$29.74	Delivery date & cost shown at checkout

eBay Brk First Alert Smi100-ac Hardwired Smoke Alarm With Battery Backup	$30.00	Delivery date & cost shown at checkout

eBay Brk Hard-wired W/battery Back-up Ionization Smoke Detector - N/a	$30.72	Delivery date & cost shown at checkout

eBay 2 PC First Alert Alarm Smoke AC/DC Hardwire Replacement	$43.00	Delivery date & cost shown at checkout

eBay SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 3-Pack \| White \| First Alert \| SMI100AC	$56.86	Delivery date & cost shown at checkout

eBay First Alert Smi100-ac Smoke Detector & Alarm, Ac Powered Battery	$74.99	Delivery date & cost shown at checkout

eBay First Alert 4PK Hardwired Smoke Alarm SMI100-AC \| White	$74.99	Delivery date & cost shown at checkout

eBay Lot of 7 First Alert BRK SMI100-AC Hardwired Smoke Alarm with 9V Battery Backup \| White	$140.00	Delivery date & cost shown at checkout

eBay Smi100,ac Family Pack Smoke Alarms, 12 Units, Battery Backup, First	$183.52	Delivery date & cost shown at checkout

eBay Brk - 6pk Contractor - Smico100-ac Hardwired Smoke & Carbon Monoxide	$183.99	Delivery date & cost shown at checkout

eBay First Alert Smi100-ac Hardwire Interconnect Smoke Alarm With Battery	$194.99	Delivery date & cost shown at checkout

Paladin Distribution BRK 1046836 SMI100-AC - Interconnectable Hardwired Smoke Alarm w/ Battery Backup	$16.95	Delivery date & cost shown at checkout

Diglo BRK First Alert SMI100-AC Hardwired Smoke Alarm	$18.60	Delivery date & cost shown at checkout

Jackson Systems & Supply First Alert SMI100-AC (1046840) Interconnect Hardwire Smoke Alarm With Battery Backup	$19.64	Delivery date & cost shown at checkout

Voomi Supply BRK 1046836 SMI100-AC Smoke Alarm With Battery Backup	$21.83	Delivery date & cost shown at checkout

FirstAlertStore.com Precision Detection Interconnect Hardwired Smoke Alarm with Battery Backup	$24.95	Delivery date & cost shown at checkout

Shipt First Alert Alarm Smoke AC/DC with ADP SMI100-AC: Hardwired Smoke Detector, Fire Alarm, Lithium Battery, 10-Year Warranty	$24.99	Delivery date & cost shown at checkout

ADCO Hearing Products BRK First Alert SMI100-AC Hardwired Smoke Alarm	$27.00	Delivery date & cost shown at checkout

Fleet Farm First Alert Interconnect Hardwire Smoke Alarm with Battery Backup \| by Fleet Farm	$27.99	Delivery date & cost shown at checkout

Uber Eats First Alert Precision Detection Interconnect Hardwired Smoke Alarm	$28.73	Delivery date & cost shown at checkout

Wayfair First Alert Hard-Wired w/Battery Back-up Ionization Smoke Detector 1 pk First Alert	$34.99	Delivery date & cost shown at checkout

Bed Bath & Beyond First Alert Ionization Smoke Detector - N/A - AC	$40.49	Delivery date & cost shown at checkout

Amazon.com First Alert Smoke Alarm, Interconnect Hardwire Detector with Battery Backup, SMI100-AC, 3-Pack	$50.96	Delivery date & cost shown at checkout

11.90
JEM Systems
Brk SMI100
Delivery date & cost shown at checkout
13.45
JEM Systems
Brk SMI100-Ac
Delivery date & cost shown at checkout
12.98
Electric Bargain Store
BRK First Alert SMI100 (1046832) Battery Operated Ionization Smoke Alarm
Delivery date & cost shown at checkout
16.00
eBay
First Alert 9120b/ Smi100-ac Smoke Detector Alarm Ac Powered Battery
Delivery date & cost shown at checkout
16.70
eBay
First Alert 9120b/ Smi100-ac Smoke Detector & Alarm, Ac Powered
Delivery date & cost shown at checkout
19.99
eBay
BRK Hard-Wired w/Battery Back-up Ionization Smoke Detector
Delivery date & cost shown at checkout
22.00
eBay
First Alert Smoke Alarm Hardware Replacement Electric Precision
Delivery date & cost shown at checkout
25.00
eBay
First Alert 9120B/ SMI100-AC Smoke Detector & Alarm, AC Powered Battery M47D
Delivery date & cost shown at checkout
25.99
eBay
First Alert - Smoke Alarm - Wired - Quick Connect Plug
Delivery date & cost shown at checkout
29.74
eBay
First Alert Hard-wired W/battery Back-up Ionization Smoke Detector
Delivery date & cost shown at checkout
30.00
eBay
Brk First Alert Smi100-ac Hardwired Smoke Alarm With Battery Backup
Delivery date & cost shown at checkout
30.72
eBay
Brk Hard-wired W/battery Back-up Ionization Smoke Detector - N/a
Delivery date & cost shown at checkout
43.00
eBay
2 PC First Alert Alarm Smoke AC/DC Hardwire Replacement
Delivery date & cost shown at checkout
56.86
eBay
SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 3-Pack | White | First Alert | SMI100AC
Delivery date & cost shown at checkout
74.99
eBay
First Alert Smi100-ac Smoke Detector & Alarm, Ac Powered Battery
Delivery date & cost shown at checkout
74.99
eBay
First Alert 4PK Hardwired Smoke Alarm SMI100-AC | White
Delivery date & cost shown at checkout
140.00
eBay
Lot of 7 First Alert BRK SMI100-AC Hardwired Smoke Alarm with 9V Battery Backup | White
Delivery date & cost shown at checkout
183.52
eBay
Smi100,ac Family Pack Smoke Alarms, 12 Units, Battery Backup, First
Delivery date & cost shown at checkout
183.99
eBay
Brk - 6pk Contractor - Smico100-ac Hardwired Smoke & Carbon Monoxide
Delivery date & cost shown at checkout
194.99
eBay
First Alert Smi100-ac Hardwire Interconnect Smoke Alarm With Battery
Delivery date & cost shown at checkout
16.95
Paladin Distribution
BRK 1046836 SMI100-AC - Interconnectable Hardwired Smoke Alarm w/ Battery Backup
Delivery date & cost shown at checkout
18.60
Diglo
BRK First Alert SMI100-AC Hardwired Smoke Alarm
Delivery date & cost shown at checkout
19.64
Jackson Systems & Supply
First Alert SMI100-AC (1046840) Interconnect Hardwire Smoke Alarm With Battery Backup
Delivery date & cost shown at checkout
21.83
Voomi Supply
BRK 1046836 SMI100-AC Smoke Alarm With Battery Backup
Delivery date & cost shown at checkout
24.95
FirstAlertStore.com
Precision Detection Interconnect Hardwired Smoke Alarm with Battery Backup
Delivery date & cost shown at checkout
24.99
Shipt
First Alert Alarm Smoke AC/DC with ADP SMI100-AC: Hardwired Smoke Detector, Fire Alarm, Lithium Battery, 10-Year Warranty
Delivery date & cost shown at checkout
27.00
ADCO Hearing Products
BRK First Alert SMI100-AC Hardwired Smoke Alarm
Delivery date & cost shown at checkout
27.99
Fleet Farm
First Alert Interconnect Hardwire Smoke Alarm with Battery Backup | by Fleet Farm
Delivery date & cost shown at checkout
28.73
Uber Eats
First Alert Precision Detection Interconnect Hardwired Smoke Alarm
Delivery date & cost shown at checkout
34.99
Wayfair
First Alert Hard-Wired w/Battery Back-up Ionization Smoke Detector 1 pk First Alert
Delivery date & cost shown at checkout
40.49
Bed Bath & Beyond
First Alert Ionization Smoke Detector - N/A - AC
Delivery date & cost shown at checkout
50.96
Amazon.com
First Alert Smoke Alarm, Interconnect Hardwire Detector with Battery Backup, SMI100-AC, 3-Pack
Delivery date & cost shown at checkout

Product Details

First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency

Through early warning interconnect, when one alarm sounds, all compatible alarms will soun

Battery backup provides continuous protection during power outages

Alarm indicator visually identifies the unit that initiated the alarm

Quick Connect Plug included allows for easy installation with no need to rewire

Best Review

Customers find the smoke detector easy to install with helpful instructions and appreciate that it works well as a replacement for Kidde models. The product is solidly built and customers consider it great value for money. However, the chirp frequency receives mixed reviews, with some customers reporting it chirps every 60 seconds. The battery power aspect also gets mixed feedback, with some customers noting it comes with a backup while others mention issues with low batteries.AI Generated from the text of customer reviews

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First Alert Smoke Alarm, Interconnect Hardwire Detector with Battery Backup, SMI100-AC, 3-Pack

Compare Buying Options

Brk SMI100

Brk SMI100-Ac

BRK First Alert SMI100 (1046832) Battery Operated Ionization Smoke Alarm

First Alert 9120b/ Smi100-ac Smoke Detector Alarm Ac Powered Battery

First Alert 9120b/ Smi100-ac Smoke Detector & Alarm, Ac Powered

BRK Hard-Wired w/Battery Back-up Ionization Smoke Detector

First Alert Smoke Alarm Hardware Replacement Electric Precision

First Alert 9120B/ SMI100-AC Smoke Detector & Alarm, AC Powered Battery M47D

First Alert - Smoke Alarm - Wired - Quick Connect Plug

First Alert Hard-wired W/battery Back-up Ionization Smoke Detector

Brk First Alert Smi100-ac Hardwired Smoke Alarm With Battery Backup

Brk Hard-wired W/battery Back-up Ionization Smoke Detector - N/a

2 PC First Alert Alarm Smoke AC/DC Hardwire Replacement

SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 3-Pack | White | First Alert | SMI100AC

First Alert Smi100-ac Smoke Detector & Alarm, Ac Powered Battery

First Alert 4PK Hardwired Smoke Alarm SMI100-AC | White

Lot of 7 First Alert BRK SMI100-AC Hardwired Smoke Alarm with 9V Battery Backup | White

Smi100,ac Family Pack Smoke Alarms, 12 Units, Battery Backup, First

Brk - 6pk Contractor - Smico100-ac Hardwired Smoke & Carbon Monoxide

First Alert Smi100-ac Hardwire Interconnect Smoke Alarm With Battery

BRK 1046836 SMI100-AC - Interconnectable Hardwired Smoke Alarm w/ Battery Backup

BRK First Alert SMI100-AC Hardwired Smoke Alarm

First Alert SMI100-AC (1046840) Interconnect Hardwire Smoke Alarm With Battery Backup

BRK 1046836 SMI100-AC Smoke Alarm With Battery Backup

Precision Detection Interconnect Hardwired Smoke Alarm with Battery Backup

First Alert Alarm Smoke AC/DC with ADP SMI100-AC: Hardwired Smoke Detector, Fire Alarm, Lithium Battery, 10-Year Warranty

BRK First Alert SMI100-AC Hardwired Smoke Alarm

First Alert Interconnect Hardwire Smoke Alarm with Battery Backup | by Fleet Farm

First Alert Precision Detection Interconnect Hardwired Smoke Alarm

First Alert Hard-Wired w/Battery Back-up Ionization Smoke Detector 1 pk First Alert

First Alert Ionization Smoke Detector - N/A - AC