Kidde 20SA10-CA DETECT Hardwired Smoke Alarm with 10‑Year Backup Battery
MFR Part #:KD21031559
- Alarm Type :Audible
- Audible Alert :85 dB at 10 ft
- Color :White
- Dimensions :12.7 cm Dia x 5.1 cm H
- Humidity Rating :Up to 95% RH
- Manufacturer Name :Kidde
The Kidde 20SA10-CA hardwired smoke alarm is a 120V AC-powered unit with a sealed 10-year backup battery, designed for residential fire detection.
It uses photoelectric sensing with interconnected capability and reduced nuisance alarm technology for reliable, low-maintenance protection.
- Kidde 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.
Specification
Details
Model
20SA10-CA
Power Source
120V AC, 60 Hz with 10-year sealed backup battery
Sensor Type
Photoelectric
Audio Alarm
85 dB at 3 m (10 ft)
Interconnectivity
Up to 24 Kidde devices
Wiring Type
AC wiring with plug-in quick connector
Temperature Range
4.4°C to 37.8°C (40°F to 100°F)
Humidity Range
Up to 95% RH (non-condensing)
Dimensions
12.7 cm x 5.1 cm x 12.7 cm
Weight
0.35 kg
Surge Protection
Meets ULC 531 (5th edition) 20kV surge test
LED Indicators
Green (power), Red (alarm), Amber (fault)
Warranty
10-Year limited warranty
Battery Replacement
Not required (sealed)
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.