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Home Alarms & Sensors
Shop Home Alarms & Sensors
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- Model: S3000BWES
- SKU: 8077101
Connects to compatible devices via 3G, 4G, 4G LTE or Bluetooth; Split-Spectrum, ionization and photoelectric sensors; Nest app (download required); mounting hardware included
Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.
Here's how:- If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
- On qualifying products, Best Buy will then verify the current price to complete the price match.
Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.
$99.99
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- Model: F-SS-MULT-001
- SKU: 4481809
Works with SmartThings hub; 50' to 130' range; meets Zigbee HA 1.2 protocol; remote monitoring capability; built-in accelerometer; monitors temperature; easy-to-install wall-mounting bracket
Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.
Here's how:- If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
- On qualifying products, Best Buy will then verify the current price to complete the price match.
Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.
$31.99
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- Model: DWS3
- SKU: 9345015
ISMARTALARM Wireless Contact Sensors (2-Pack): Detects opening and closing of windows, doors and cabinets; provides instant notifications; compatible with Apple iPhone and select Android smartphones; wireless, movable design; 2-pack
Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.
Here's how:- If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
- On qualifying products, Best Buy will then verify the current price to complete the price match.
Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.
$59.99
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- Model: S3003LWES
- SKU: 8079012
Connects to compatible devices via 3G, 4G, 4G LTE or Bluetooth; Split-Spectrum, ionization and photoelectric sensors; Nest app (download required); mounting hardware included
Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.
Here's how:- If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
- On qualifying products, Best Buy will then verify the current price to complete the price match.
Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.
$99.99
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- Model: F-CEN-IRM-1
- SKU: 4481806
Compatible with SmartThings hub; meets ZigBee HA 1.2 protocol; detects motion up to 15' with 120° view range; includes a wall-mounting bracket, four 1" 3M square adhesive strips and two #6 Phillips head mounting screws
Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.
Here's how:- If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
- On qualifying products, Best Buy will then verify the current price to complete the price match.
Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.
$31.99
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- Model: F-CEN-MOIS-1
- SKU: 4481807
Compatible with SmartThings hub; meets Zigbee HA 1.2 protocol; 50' to 150' range; provides smartphone alerts; triggers a light or siren
Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.
Here's how:- If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
- On qualifying products, Best Buy will then verify the current price to complete the price match.
Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.
$31.99
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- Model: LNL9ZA1CB
- SKU: 4599402
Works with most smoke and carbon monoxide detectors manufactured after 1996; temperature/humidity, microphone and ambient light sensors; downloadable iOS and Android app; adjustable night-light
Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.
Here's how:- If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
- On qualifying products, Best Buy will then verify the current price to complete the price match.
Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.
$49.99
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- Model: HS-DWA4
- SKU: 4220800
SABRE Door/Window Alarms (4-Pack): 120dB alerts; magnetic triggering; chime and alarm modes; quick and easy installation
Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.
Here's how:- If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
- On qualifying products, Best Buy will then verify the current price to complete the price match.
Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.
$29.99
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- Model: HS-WAK
- SKU: 4220812
SABRE Wireless Alarm Kit: Includes 3 door/window alarms and 1 keypad door alarm; 120dB alerts; entry delay; easy installation
Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.
Here's how:- If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
- On qualifying products, Best Buy will then verify the current price to complete the price match.
Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.
$27.99
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- Model: 10027801
- SKU: 4236500
ELGATO Eve Room Wireless Indoor Sensor: Tracks indoor air quality, temperature and humidity; analyzes VOC (volatile organic compounds); compiles personal data over days, months or years; Apple HomeKit technology; compatibility with Siri
Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.
Here's how:- If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
- On qualifying products, Best Buy will then verify the current price to complete the price match.
Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.
$79.99
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- Model: PIR3
- SKU: 9345024
ISMARTALARM Wireless Motion Sensor: Detects suspicious movement; provides instant notifications; compatible with Apple iPhone and select Android smartphones; portable design
Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.
Here's how:- If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
- On qualifying products, Best Buy will then verify the current price to complete the price match.
Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.
$34.99
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- Model: HS-GA2
- SKU: 4220813
SABRE Window Glass Alarms (2-Pack): Ideal for windows, patios and doors; 100dB alerts; high/low sensitivity settings; on/off switch
Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.
Here's how:- If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
- On qualifying products, Best Buy will then verify the current price to complete the price match.
Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.
$17.99
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- Model: SWO-AST01K-US
- SKU: 6678237
SWANN Alarm Starter Kit: Includes a SwannOne smart hub, a key fob, a motion sensor and 2 door/window sensors; SwannOne app (download required); home, away and night modes; built-in microphones; personal safety feature
Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.
Here's how:- If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
- On qualifying products, Best Buy will then verify the current price to complete the price match.
Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.
$299.99
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- Model: 60-3541-05-XP
- SKU: 4748000
SMANOS SS2800 Outdoor Strobe Siren: Compatible with smanos alarm systems; for outdoor use; 105dB siren; flashing light; optional silent mode
Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.
Here's how:- If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
- On qualifying products, Best Buy will then verify the current price to complete the price match.
Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.
$89.99
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- Model: GGG2-TWS-101
- SKU: 5009700
Compatible with Gogogate 2 controller and most garage door openers; temperature and battery status indicators; includes double sided tape
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- Model: DCH-S150
- SKU: 8428648
For use with D-Link Wi-Fi smart plugs, Wi-Fi cameras and other compatible home automation devices; 802.11b/g/n wireless standard; WPS button; LED status indicators; mydlink Home app support
Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.
Here's how:- If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
- On qualifying products, Best Buy will then verify the current price to complete the price match.
Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.
$39.99
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- Model: HS-DWA2
- SKU: 4220815
SABRE Door/Window Alarms (2-Pack): 120dB alerts; magnetic triggering; chime and alarm modes; quick and easy installation
Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.
Here's how:- If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
- On qualifying products, Best Buy will then verify the current price to complete the price match.
Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.
$15.99
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- Model: HS-EDA
- SKU: 4220811
SABRE Elite Door Alarm: 120dB alarm; 2 settings; 4-digit pin code; entry/exit delay; includes mounting hardware
Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.
Here's how:- If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
- On qualifying products, Best Buy will then verify the current price to complete the price match.
Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.
$19.99
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- Model: LNK01
- SKU: 4826000
For use with PlantLink Basestation; indoor/outdoor use; weatherproof; wireless; batteries included
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- Model: 252138ABN4AX12
- SKU: 4562200
NEXTALARM Wired Broadband Adapter for Alarm Systems: Compatible with most alarm systems; uses your home Internet connection; receive email and text notifications; downloadable app; includes an RJ31x-to-RJ11 adapter and an Ethernet cable
Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.
Here's how:- If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
- On qualifying products, Best Buy will then verify the current price to complete the price match.
Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.
$69.99
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- Model: 10027802
- SKU: 4237000
ELGATO Eve Door & Window Wireless Contact Sensor: Apple HomeKit technology; Bluetooth Smart interface; detects opening and closing of doors and windows; provides instant opened/closed status and statistics
Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.
Here's how:- If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
- On qualifying products, Best Buy will then verify the current price to complete the price match.
Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.
$39.99
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- Model: 60-3537-05-XP
- SKU: 4422608
SMANOS MD2300 Wireless PIR Motion Detector: Compatible with smanos DIY alarm systems; pet detection; pivoting mounting bracket; tamper alert
Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.
Here's how:- If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
- On qualifying products, Best Buy will then verify the current price to complete the price match.
Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.
$39.00
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- Model: 5801005MIG_YS1G
- SKU: 9724213
OPLINK CONNECTED Add-On Wireless Motion Sensor for Oplink AlarmShield and TripleShield Security Systems: Compatible with Oplink AlarmShield and TripleShield systems; up to 40' detection range; 120-degree angle; pet immune; battery indicator
Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.
Here's how:- If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
- On qualifying products, Best Buy will then verify the current price to complete the price match.
Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.
$49.99
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- Model: BU0201
- SKU: 4531807
MYFOX Home Alarm Wireless Smart Home Security System: Wireless-N network connectivity; IntelliTAG door/window sensor; Bluetooth key fob; tamper protection; battery backup; downloadable app
Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.
Here's how:- If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
- On qualifying products, Best Buy will then verify the current price to complete the price match.
Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.
$256.99
On Sale
Save $23 (Reg. $279.99)