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Alarm Type	Smoke
Power Source	Battery Operated
Sensor	Photoelectric
Interconnects	No
Battery	10-year sealed battery operated

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Product Description

The Kidde 20SD10 offers advanced smoke detection technology in a sleek, modern design with a 10-year sealed lithium battery. Powered for a decade without replacements, this alarm features enhanced photoelectric smoke sensing for fast, reliable alerts. With self-testing capabilities and an easy twist-and-click mounting bracket, it provides ultimate peace of mind with simple installation. Its tamperproof design and end-of-life notifications ensure long-lasting performance for complete home safety.

Top Features:

10-Year Battery Life: Sealed lithium battery eliminates the need for replacements, saving time and money.
Photoelectric Sensor: Detects visible smoke particles for fast, reliable alerts, minimizing nuisance alarms.
Self-Testing Technology: Automatic internal checks ensure the alarm is functioning properly.
Easy Installation: Twist-and-click mounting bracket simplifies setup.
End-of-Life Notifications: Beeps and flashes amber LED to remind you to replace the alarm after 10 years.

Specifications Chart

Category	Specifications
Power Source	10-year sealed lithium battery
Smoke Sensor Type	Photoelectric smoke sensing
Audio Alarm	85 dB at 10 feet
LED Indicators	Standby: Green LED flashes every 60 seconds Smoke Detected: Red LED flashes in sync with alarm Fault Indication: Amber LED with audible chirps End-of-Life: Amber LED flashes with 2 chirps/minute
Self-Testing	Internal self-checks with weekly manual push test option
HUSH™ Feature	Temporarily silences alarms for 8-10 minutes
Alarm Memory	Red LED flashes every 15 seconds to indicate past alarm
Temperature Range	40˚F (4.4˚C) to 100˚F (37.8˚C)
Humidity Range	Up to 95% RH, non-condensing
Installation Method	Ceiling or wall with twist-and-click mounting bracket
Dimensions	5" W x 2" D x 5" H
Weight	0.79 lb
Certifications	UL 217, NFPA 72, NFPA 101, FHA, HUD
Warranty	10-Year Limited Warranty

All Kidde smoke alarms meet UL 217 standard and are listed with the California State Fire Marshal. They use the new UL mandated repeating 85-decibel alarm horn pattern. 10-year limited warranty. For a full list of states and cities requiring 10 Year alarms click here.

Don't know what type of smoke and carbon monoxide alarm is right for your home? Check out our guide on how to choose the right smoke detector for your home.

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In The Box

1 Smoke & Carbon Monoxide Alarm
1 Mounting Bracket
1 Dust Cover
1 English/ Spanish Instructions Manual

Info & Guides

User Manual	Download
Specification Sheet	Download

Kidde 20SD10 10-Year Sealed Battery Smoke Alarm