Kidde 20SA10-CA DETECT Hardwired Smoke Alarm with 10‑Year Backup Battery

120V AC Power with 10-Year Sealed Backup Battery → Continuous protection without battery replacement

Eliminates frequent battery changes while maintaining operation during power outages.

Photoelectric Smoke Sensor → Better detection of visible smoke from smoldering fires

Supports early warning in common residential fire scenarios.

Interconnected Alarm Capability → Whole-home alert system

When one unit detects smoke, all connected compatible alarms sound for faster response.

Enhanced Sensing Technology → Fewer nuisance alarms

Reduces false alerts typically caused by cooking or everyday activities.

Self-Testing Function → Continuous operational assurance

Internal diagnostics ensure the alarm is functioning as expected.

End-of-Life Notification → Clear replacement timing

Audible alert indicates when the unit reaches its 10-year service life.

HUSH™ Feature → Temporary alarm silencing

Allows silencing of nuisance alarms for approximately 8–10 minutes.

Multi-Color LED Indicators → Status visibility at a glance

Provides clear visual signals for power, alarms, and fault conditions.

Twist-and-Click Mounting Bracket → Simplified installation

Designed for quicker and more secure mounting.

Residential homes requiring hardwired smoke alarm systems

Installations across multiple levels and sleeping areas

Connected safety systems where interlinked alerts are required

Homes needing low-maintenance, long-life fire detection solutions

Electrical installations with junction box mounting and code-compliant wiring

Compatible with:

• Up to 24 Kidde interconnectable devices (smoke, CO, heat alarms, and accessories per system limits)

System limits:

• Maximum 18 initiating devices (up to 12 smoke alarms) within an interconnect system

Not compatible with:

• Non-Kidde products unless explicitly specified

Installation requirements:

• Must be wired to a continuous (non-switched) AC power line
• Installation by qualified electrician recommended
• Compatible with CSA-listed or recognized junction boxes

What type of sensor does the Kidde 20SA10-CA use?

The Kidde 20SA10-CA uses a photoelectric smoke sensor, designed to detect visible smoke particles commonly produced by smoldering fires.

Does the alarm require battery replacement?

No. It includes a sealed 10-year backup battery, eliminating the need for battery replacement during its service life.

Can multiple units be connected together?

Yes. This model supports interconnection with up to 24 compatible Kidde devices, allowing all alarms to sound simultaneously when one is triggered.

How does the alarm indicate end of life?

The unit provides audible chirps with an amber LED alert to indicate it has reached the end of its 10-year lifespan.

Can the alarm be silenced during nuisance alarms?

Yes. The built-in HUSH™ feature temporarily silences the alarm for approximately 8–10 minutes during nuisance conditions such as cooking.