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"Battery Motion Sensor Alarms"

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12 items
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SABRE - Motion-Sensing Alarm - White - Larger Front
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  • Model: HS-MSA
  • SKU: 4220821
SABRE Motion-Sensing Alarm: 120dB alerts with 20' range; numeric code; entry/exit delays; alarm and chime modes; 120-degree detection; easy installation; includes a mounting bracket and hardware
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, 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
SwannOne - Motion Sensor Twin-Pack - White - Larger Front
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  • Model: SWO-MOS2PA
  • SKU: 6678228
Compatible with SwannOne System; detects movement in a monitored area and significant temperature changes; battery powered
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, 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.

$64.99
Oplink Connected - Add-On Wireless Motion Sensor for Oplink AlarmShield and TripleShield Security Systems - White - Larger Front
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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
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, 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
Swann - Driveway Alert Alarm - White - Larger Front
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  • Model: SWHOM-DRIVEA
  • SKU: 1308377924
PIR sensor; sound alarm; wireless; door, gate or driveway mountable; battery powered
What is Marketplace?

Marketplace Items

  • are sold and shipped by Best Buy-approved third party retailers using our secure checkout; your credit card information stays with Best Buy
  • are not available in Best Buy stores
  • can only be returned to the Marketplace Seller

Learn More

$36.11
Swann - PIR Motion Alarm - largeFrontView
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  • Model: SW351-KCH
  • SKU: 1306234236
Up to 23' detection range; 120° wide-angle motion detection; >90dB chime mode; >110dB siren mode; passcode protection; entry and exit delays; low-battery indication; runs on 3 AAA batteries (not included)
What is Marketplace?

Marketplace Items

  • are sold and shipped by Best Buy-approved third party retailers using our secure checkout; your credit card information stays with Best Buy
  • are not available in Best Buy stores
  • can only be returned to the Marketplace Seller

Learn More

$26.99
Oplink Connected - Add-On Wireless Motion Sensor for Oplink AlarmShield and TripleShield Security Systems - White - Larger Front
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  • Model: 5801005MIG_YS1G
  • SKU: 1312530858
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
What is Marketplace?

Marketplace Items

  • are sold and shipped by Best Buy-approved third party retailers using our secure checkout; your credit card information stays with Best Buy
  • are not available in Best Buy stores
  • can only be returned to the Marketplace Seller

Learn More

$43.02
Clarity - Clarity AM-SX AlertMaster Motion Sensor - Multicolor - Larger Front
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  • Model: AM-SX
  • SKU: 1310363137
Clarity AlertMaster AM-SX
Product # 01884.000
Brand New Includes One Year Warranty

The
What is Marketplace?

Marketplace Items

  • are sold and shipped by Best Buy-approved third party retailers using our secure checkout; your credit card information stays with Best Buy
  • are not available in Best Buy stores
  • can only be returned to the Marketplace Seller

Learn More

$68.00
Oplink Connected - Wireless Door/Window Sensor - White - Larger Front
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  • Model: 58010004MI_YS3G
  • SKU: 1312530827
OPLINK CONNECTED Wireless Door/Window Sensor: Detects opening of a door or window; designed for indoor use; tamper-resistant; slim design; 802.11b/g/n Wi-Fi
What is Marketplace?

Marketplace Items

  • are sold and shipped by Best Buy-approved third party retailers using our secure checkout; your credit card information stays with Best Buy
  • are not available in Best Buy stores
  • can only be returned to the Marketplace Seller

Learn More

$15.57
Swann - SwannOne Indoor Siren - White - Larger Front
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  • Model: SWO-INS1PA-GL
  • SKU: 6678219
SWANN SwannOne Indoor Siren: Wireless connectivity; 104dB alarm; motion detection; low-battery detection; tamper and jamming protection; mobile alerts
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, 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.

$109.99
VTech - Kidizoom Smartwatch DX - Blue - Angle
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  • Model: 80-171600
  • SKU: 4317201
Lets your child capture photos and videos; motion sensor; 3 action challenges; 8 games; touch screen; more than fifty 3D digital and analog display options; alarm; timer; stopwatch; calendar; calculator
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, 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.

$50.99
On Sale
Save $9 (Reg. $59.99)
VTech - Kidizoom Smartwatch DX - Pink - Larger Front
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  • Model: 80-171650
  • SKU: 4317100
Lets your child capture photos and videos; motion sensor; 3 action challenges; 8 games; touch screen; more than fifty 3D digital and analog display options; alarm; timer; stopwatch; calendar; calculator
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, 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
On Sale
Save $10 (Reg. $59.99)
Myfox - Security Camera with Privacy Shutter - White/Silver - Larger Front
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  • Model: BU4001
  • SKU: 4531700
Wi-Fi connectivity; mobile device remote access via downloadable app; 720p video recording; night vision; PIR motion sensor; stores up to 1 hour of video; encryption support; motorized shutter
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, 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.

$179.99