$(csi.user.businessName)

Main Content

Loading...

Skip to content Go to Product Search

Visit our Support Center
Check your Order Status
Shipping, Delivery & Store Pickup
Returns & Exchanges
Price Match Guarantee

Order & Purchases

Check Order Status
Shipping, Delivery & Pickup
Returns & Exchanges
Price Match Guarantee
Product Recalls
Trade-In Program
Gift Cards

Payment Options

My Best Buy® Credit Card
Pay Your Bill at Citibank
Lease to Own
Buy Now, Pay Later
Best Buy Business Financing

Support & Services

Visit our Support Center
Schedule a Service
Manage an Appointment
Protection & Support Plans
Haul Away & Recycling
Contact Us

Rewards & Membership

My Best Buy Memberships
View Points & Certificates
Member Offers

Partnerships

Sell on Best Buy Marketplace
Advertise with Us
Affiliates: Creators & Publishers
Best Buy Health
Best Buy Education
Best Buy Business
Partner+

About Best Buy

Corporate Information
Careers
Corporate Responsibility
Sustainability

Sign in or Create Account

Get the latest deals and more.

Email Address

Best Buy appLearn more ›

Best Buy Canada

Accessibility Terms & Conditions Privacy Interest-Based Ads State Privacy Rights Health Data Privacy Do Not Sell/Share My Personal Information Limit Use of My Sensitive Personal Information Targeted Advertising Opt Out CA Supply Chain Transparency Act

In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.

Best Buy Gamers

Deal of the Day

My Best Buy Memberships

Best Buy Business

motion sensor alarm for elderly search results

Filters

Skip To Results

Get it fast

Pickup · Ready todaySelect Store

Shipping · Get it today55423

Sold & shipped by

Best Buy

Category: Door & Window Alarms

Price

to

Less than $25

$25 - $49.99

$50 - $74.99

$75 - $99.99

$100 - $149.99

Brand

ecobee

Ring

SimpliSafe

Aqara

VEVOR

Features

App Compatible

Bluetooth

Current Deals

On Sale

Customer Rating

Top-Rated

4 & Up

Works With

Amazon Alexa

Ring

Google Home

Apple Home

motion sensor alarm for elderly in Door & Window Alarms (8)

Search all categories

Sort by:

Front. SimpliSafe - Motion Sensor - White.

SimpliSafe - Motion Sensor - White

Rating 4.6 out of 5 stars with 36 reviews

4.6(36 reviews)

Compare

Front. ecobee - ecobee SmartSensor 2-Pack - Temperature & Occupancy Detection, Comfort, Security, Energy Savings - White.

ecobee - SmartSensor 2-Pack - Temperature & Occupancy Detection, Comfort, Security, Energy Savings - White

Rating 4.7 out of 5 stars with 767 reviews

4.7(767 reviews)

Compare

ecobee

ecobee - Smart Sensor for Doors & Windows 2 Pack - Wifi Contact Sensor for Home Security, Energy Savings - White

Rating 4.2 out of 5 stars with 55 reviews

4.2(55 reviews)

Compare

Front. Ring - Alarm Contact Sensor (2nd Gen) (2-Pack) - White.

Ring - Alarm Contact Sensor (2nd Gen) (2-Pack) - White

Rating 4.8 out of 5 stars with 1210 reviews

4.8(1,210 reviews)

Compare