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Home Alarms & Sensors

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Innovation meets automation for every room in your house.

Google - Nest Cam 2 Pack Indoor/Outdoor Wire Free Security Cameras - Snow
Rating 4.1 out of 5 stars with 2756 reviews
$269.99
The price was $329.99
Google - Nest Wi-Fi Video Doorbell - Battery Operated - Snow
Rating 4.3 out of 5 stars with 1835 reviews
$179.99
Google - Nest Thermostat - Programmable Wi-Fi Smart Thermostat - Snow
Rating 4.4 out of 5 stars with 2286 reviews
$129.99
Google - Nest Learning Thermostat (4th gen) with Nest Temperature Sensor (2nd gen) - Polished Obsidian
Rating 4.7 out of 5 stars with 529 reviews
$239.99
The price was $279.99

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Home Alarms & Sensors

Home Alarms & Sensors (252)

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Google - Nest Learning Thermostat (4th gen) with Nest Temperature Sensor (2nd gen) - Polished Obsidian
Rating 4.7 out of 5 stars with 529 reviews
$239.99
Save $40
The comparable value is $279.99
More Buying Options from $184.99
Pick up today
Get it tomorrow • FREE
Installation as soon as Wed, May 20
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SimpliSafe - 8pc Outdoor Home Security System - White
Rating 4.7 out of 5 stars with 67 reviews
$99.99
Save $250
The comparable value is $349.99
Pick up Thu, May 21
Get it tomorrow • FREE
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Ring - Quick Release Rechargeable Lithium-ion Battery for Select Devices
Rating 4.8 out of 5 stars with 7491 reviews
$34.99
More Buying Options from $34.74
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Get it by Sun, May 17 • $5.49
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SimpliSafe - 7pc Indoor Security System - White
Rating 4.8 out of 5 stars with 120 reviews
$99.99
Save $130
The comparable value is $229.99
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Installation as soon as Wed, May 20
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Google - Nest Learning Thermostat (4th gen) with Nest Temperature Sensor (2nd gen) - Polished Obsidian
Rating 4.7 out of 5 stars with 529 reviews
$239.99
Save $40
The comparable value is $279.99
More Buying Options from $184.99
Pick up today
Get it tomorrow • FREE
Installation as soon as Wed, May 20
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Arlo - Mountable Solar Panel Charger, 2025 Release - White
Rating 4.7 out of 5 stars with 45 reviews
$39.99
Save $10
The comparable value is $49.99
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SimpliSafe - 8pc Outdoor Home Security System - White
Rating 4.7 out of 5 stars with 67 reviews
$99.99
Save $250
The comparable value is $349.99
Pick up Thu, May 21
Get it tomorrow • FREE
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Sync Module XR (newest model) — System hub for all Blink devices, up to 400 feet from your home w/ Outdoor 4 - White
Rating 4.7 out of 5 stars with 82 reviews
$69.99
Pick up Thu, May 21
Get it tomorrow • FREE
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SimpliSafe - 4pack Entry Sensor - White
Rating 4.7 out of 5 stars with 281 reviews
$54.99
Pick up today
Get it tomorrow • FREE
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SimpliSafe - Smoke & Carbon Monoxide Detector - White
Rating 4.8 out of 5 stars with 34 reviews
$69.99
Pick up today
Get it tomorrow • FREE
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SimpliSafe - 7pc Indoor Security System - White
Rating 4.8 out of 5 stars with 120 reviews
$99.99
Save $130
The comparable value is $229.99
Pick up today
Get it tomorrow • FREE
Installation as soon as Wed, May 20
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First Alert - Smoke and Carbon Monoxide Detector Hardwired - White
Rating 4.3 out of 5 stars with 138 reviews
$113.99
Save $16
The comparable value is $129.99
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New to Best Buy

Taylor - Crane Dial Thermometer Plastic Multicolored 8.5 in. - Case of 6

Taylor - Crane Dial Thermometer Plastic Multicolored 8.5 in. - Case of 6

$66.57$66.57

Taylor - Owl Dial Thermometer Plastic Multicolored 13.25 in. - Case of 4

Taylor - Owl Dial Thermometer Plastic Multicolored 13.25 in. - Case of 4

$67.42$67.42

Taylor - Wire Probe Digital Thermometer Plastic Black 3.15 in.

Taylor - Wire Probe Digital Thermometer Plastic Black 3.15 in.

$25.78$25.78

FEIT ELECTRIC - Wi-Fi Smart Motion Sensor - White

FEIT ELECTRIC - Wi-Fi Smart Motion Sensor - White

$37.70$37.70

The price was $40.57

Taylor - Weather Station

Taylor - Weather Station

$34.34$34.34

Taylor - Eagle Dial Thermometer Plastic Multicolored 13.25 in. - Case of 4

Taylor - Eagle Dial Thermometer Plastic Multicolored 13.25 in. - Case of 4

$65.26$65.26

The price was $67.33

La Crosse Technology - Wireless Temperature & Humidity Station with Trends & Alerts - White/Orange

La Crosse Technology - Wireless Temperature & Humidity Station with Trends & Alerts - White/Orange

$39.99$39.99

First Alert - BRK Battery-Powered Electrochemical Carbon Monoxide Detector

First Alert - BRK Battery-Powered Electrochemical Carbon Monoxide Detector

$136.10$136.10

Taylor - Bee Kind Tube Thermometer Plastic Multicolored 8 in. - Case of 6

Taylor - Bee Kind Tube Thermometer Plastic Multicolored 8 in. - Case of 6

$39.47$39.47

Taylor - Weather Station with Barometer

Taylor - Weather Station with Barometer

$45.51$45.51

The price was $47.06

La Crosse Technology - Wireless Weather Station with Alerts - White/Blue

La Crosse Technology - Wireless Weather Station with Alerts - White/Blue

$48.99$48.99

Taylor - Bee Kind Thermometer Ceramic Multicolored 8 in. - Case of 6

Taylor - Bee Kind Thermometer Ceramic Multicolored 8 in. - Case of 6

$118.78$118.78

The price was $123.75

Taylor - Comfort Monitor Humidity Meter/Thermometer Plastic 5.91 in.

Taylor - Comfort Monitor Humidity Meter/Thermometer Plastic 5.91 in.

$22.42$22.42

Taylor - Hummingbird Dial Thermometer Plastic White 13.25 in. - Case of 4

Taylor - Hummingbird Dial Thermometer Plastic White 13.25 in. - Case of 4

$67.33$67.33

Taylor - Bird Design Dial Thermometer Plastic Assorted 6 in.

Taylor - Bird Design Dial Thermometer Plastic Assorted 6 in.

$20.63$20.63

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SimpliSafe - 9pc Outdoor Home Security System - White
Rating 4.7 out of 5 stars with 96 reviews
$449.99
$37.50/mo.
suggested payments with 12-Month Financing
Pick up today
Get it tomorrow • FREE
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Arlo - Home Security System Bundle - White
Rating 3.9 out of 5 stars with 20 reviews
$229.99
Save $120
The comparable value is $349.99
Pick up today
Get it tomorrow • FREE
Installation as soon as Wed, May 20
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First Alert - Smoke and Carbon Monoxide Detector Battery Powered - White
Rating 4.3 out of 5 stars with 135 reviews
$113.99
Save $16
The comparable value is $129.99
Pick up today
Get it tomorrow • FREE
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SimpliSafe - 1pack Entry Sensor - White
Rating 4.7 out of 5 stars with 748 reviews
$15.99
Pick up today
Get it by Sun, May 17 • $5.49
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Blink - Add-On Sync Module 2 - Black/White
Rating 4.5 out of 5 stars with 625 reviews
$49.99
Pick up today
Get it tomorrow • FREE
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Arlo - SmartHub - White
Rating 4 out of 5 stars with 121 reviews
$99.99
Pick up Thu, May 21
Get it by Sat, May 16 • FREE
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SimpliSafe - Smoke & Carbon Monoxide Alarm Listener - White
Rating 3.7 out of 5 stars with 3 reviews
$44.99
Pick up Thu, May 21
Get it by Sat, May 16 • FREE
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First Alert - Smoke and Carbon Monoxide Detector Hardwired - White
Rating 4.3 out of 5 stars with 138 reviews
$113.99
Save $16
The comparable value is $129.99
Pick up today
Get it tomorrow • FREE
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ecobee - SmartSensor 2-Pack - White
Rating 4.7 out of 5 stars with 760 reviews
$79.99
Save $20
The comparable value is $99.99
Pick up today
Get it tomorrow • FREE
Installation as soon as Wed, May 20
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SimpliSafe - Wireless Auxiliary Siren - White
Rating 4.8 out of 5 stars with 142 reviews
$59.99
Pick up Thu, May 21
Get it by Sat, May 16 • FREE
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First Alert - Z-Wave Smoke and Carbon Monoxide Detector - White
Rating 4.4 out of 5 stars with 5 reviews
$64.99
Pick up Thu, May 21
Get it by Sat, May 16 • FREE
Installation as soon as Wed, May 20
Compare
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SimpliSafe - Water Sensor - White
Rating 4.7 out of 5 stars with 222 reviews
$29.99
Pick up today
Get it by Sun, May 17 • $5.49
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