Specials & Offers Appliances Bath Blinds & Window Treatments Building Materials Lumber & Composites Cleaning Home Décor Lighting Doors & Windows Electrical Flooring Hardware Heating, Venting & Cooling Kitchen Garden Center Outdoors Paint Plumbing Holiday Decorations Smart Home Storage & Organization Tools Automotive Furniture Home Depot Gift Cards Credit Card Services Home Services Home Depot Rental Pro Services & Contractor Supply Project Calculators DIY Projects and Ideas Local Ad Store Finder Site Map

#1 Home Improvement Retailer

Cart

Cart

/

/

/

Heat Detectors

sponsored banner

Heat Detectors

Kidde

Battery

Hardwired

Battery Type Required: 9-volt

Shop Savings

2 Results

Filters

Filters

Clear All

Get It Fast

In Stock at Store Today

Same-Day Delivery

Department

Electrical
Fire Safety

Review Rating

5

4 & Up

3 & Up

2 & Up

1 & Up

4 & Up 3 & Up 2 & Up 1 & Up

Brand

Kidde

SkyLink

Price

to

$30 - $40

$40 - $50

Special Values

Alarm/Detector Features

Adjustable Sensitivity

Battery Back-Up

Hush Button

Wire-free Interconnect

Power Source

Battery

Hardwired

Pack Size

1

3

Sort by

Top Sellers

Best Seller

Kidde
Firex Hardwired Interconnected 120V AC Wire Auxiliary Heat Detector

Model# 21029895

$42.97

Buy More, Save More

See Details

SkyLink
Fixed Temperature Detector

Model# TS-101A

$34.21

Download Our App

How doers get more done™

Need Help? Visit our Customer Service Center

Support

Customer Service Center
Check Order Status
Pay Your Credit Card
Order Cancellation
Return Policy
Refund Policy
Shipping & Delivery
Product Recalls
My Preference Center
Privacy & Security Center

Resources

Specials & Offers
Military Discount Benefit
DIY Projects & Ideas
Truck & Tool Rental
Installation & Services
Moving Supplies & Rentals
Protection Plans
Rebate Center
Gift Cards
Catalog
Subscriptions

About Us

Careers
Corporate Information
Digital Newsroom
Home Depot Foundation
Investor Relations
Government Customers
Suppliers & Providers
Affiliate Program
Eco Actions
Corporate Responsibility
Home Depot Licensing Information

Special Financing Available everyday*

Pay & Manage Your Card Credit Offers

Get $5 off when you sign up for emails with savings and tips.

Home Depot Blog

Home Depot on YouTube

Home Depot Mobile Apps

Our Other Sites

The Home Depot Canada

The Home Depot México

Shop Our Brands

Need Help?

Visit ourCustomer Service Center orText 38698

© 2000-2025 Home Depot. All Rights Reserved. Use of this site is subject to certain Terms Of Use.

Local store prices may vary from those displayed. Products shown as available are normally stocked but inventory levels cannot be guaranteed.

For screen reader problems with this website, please call 1-800-430-3376 or text 38698 (standard carrier rates apply to texts).

Store Locator|
©2000-2025 Home Depot|
Privacy & Security Statement|
Terms|
My Preference Center|
California Privacy Rights & Report|
Limit the Use of My Sensitive Personal Information|
Do Not Sell or Share My Personal Information|
California Supply Chain Act
Site Map
Store Directory

Provide Feedback