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SimpliSafe - Defend Home Security System - White - Larger Front
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  • Model: BBY-DEF11-00
  • SKU: 4643709
CDMA and GSM cellular connectivity; remote monitoring via compatible computers and mobile devices; optional 24/7 monitoring; panic function; smoke detector; battery-operated
Price Match Guarantee

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, 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.

$349.99
Kidde - Smoke Alarm - Larger Front
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  • Model: 21026404
  • SKU: 5371507
Voice Alarm; photoelectric sensor; self activation; Smart Hush; always on
Price Match Guarantee

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, 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.

$28.99
Kidde - Smoke Alarm - Larger Front
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  • Model: 21026405
  • SKU: 5371511
Sealed-in lithium battery; photoelectric sensor; self activation; Smart Hush; red LED
Price Match Guarantee

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, 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.

$24.99
Kidde - Smoke Alarm - Larger Front
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  • Model: 21026406
  • SKU: 5371506
Always on; self activation; photoelectric sensor
Price Match Guarantee

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, 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
Kidde - Smoke/CO Alarm - Larger Front
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  • Model: 21026407
  • SKU: 5371512
Smoke and Carbon Monoxide Alarm; photoelectric sensor; self activation; always on
Price Match Guarantee

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, 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
Kidde - Smoke/CO Alarm - Larger Front
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  • Model: 21026407
  • SKU: 5371502
Smoke and Carbon Monoxide Alarm; photoelectric sensor; self activation; always on
Price Match Guarantee

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, 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
First Alert - Battery Operated Talking Combination Smoke and Carbon Monoxide Alarm - White - Larger Front
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  • Model: SCO7CN
  • SKU: 5579817
Protect your loved ones and your home; carbon monoxide detector; electrochemical sensor; photoelectric smoke sensing; talking alarm; loud 85-decibel alarm; battery-powered; easy access battery door; low battery warning; end of life timer
$39.99
On Sale
Save $25 (Reg. $64.99)
Leeo - Smart Alert - White - Larger Front
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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
Price Match Guarantee

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, 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
First Alert - Slim Design  Photoelectric Smoke Sensor with Alarm - White - Angle
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  • Model: PR710
  • SKU: 5578219
10-year sealed lithium battery; low profile, round design; easy installation; test/silence button
$27.99
On Sale
Save $7 (Reg. $34.99)
Kidde - Combination Smoke and Carbon Monoxide Alarm - Angle
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  • Model: 21026398
  • SKU: 5371504
Combined carbon monoxide and smoke alarm; ionization sensor; LEDs; low battery warning
Price Match Guarantee

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, 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.

$38.99
First Alert - Battery Operated Tamperproof Smoke Alarm - White - Larger Front
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  • Model: SA340CN
  • SKU: 5579816
Protect your loved ones and your home; ionization smoke sensing technology; tamper-resistant alarm design; loud 85-decibel alarm; battery-powered; 10-year sealed lithium power cells
First Alert - Low Profile Smoke Alarm - White - Larger Front
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  • Model: P900
  • SKU: 5578370
Nuisance free technology; sleek/thin design; power LED and alarm indicator; mute/silence button; versatile mount
First Alert - Ionization Smoke Sensor with Alarm - White - Angle
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  • Model: 0827B
  • SKU: 5578284
10-year sealed lithium battery; ionization smoke sensor; alarm status LED indicator; test/silence button
Price Match Guarantee

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, 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
First Alert - Low Profile Combination Smoke/Carbon Monoxide Alarm - White - Larger Front
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  • Model: PC900V
  • SKU: 5578304
2-in-1 protection, combination smoke and carbon monoxide alarm; mute/silence button; voice location feature; slim design; power LED and alarm indicator; versatile mount
$43.99
On Sale
Save $4 (Reg. $47.99)
Roost - Smart 9V Batteries (2-Pack) - White, Blue - Larger Front
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  • Model: 90000002
  • SKU: 5194400
Lithium chemistry; 9V; low-level power indicator; wi-fi notification
Price Match Guarantee

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, 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.

$64.99

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