Kidde 20SD10 Smoke Detector
Best reliable protection for straightforward home safety needs.
This hardwired smoke detector offers reliable protection with a 10-year sealed battery backup and photoelectric sensor. It's interconnectable for whole-home safety and features an 85 dB alarm with LED indicators. Designed for a decade of service, it provides peace of mind with an end-of-life warning.
$30.82
at
SupplyHouse.com
Who it's for
- Homeowners seeking reliable detection with fewer false alarms
- Renters or DIYers wanting quick, flexible setup without electrical work
- Occupants needing to quickly silence false alarms or perform routine checks
Who should skip it
- Individuals preferring maintenance-free or long-life smoke detection solutions
- Families living in larger homes desiring comprehensive, synchronized alarm coverage
- Consumers prioritizing rapid detection for all types of fires
Performance breakdown
Sensor Reliability
Photoelectric technology excels at detecting slow-burning, smoldering fires quickly.
Maintenance Ease
Sealed ten-year battery eliminates the hassle of annual battery replacements.
System Integration
Hardwired interconnectivity ensures every alarm sounds simultaneously for maximum safety.
Alert Effectiveness
Standard 85-decibel output provides sufficient volume to wake sleeping households.
Installation Complexity
Hardwired setup requires basic electrical knowledge and ceiling access for installation.
Longevity
Ten-year lifespan matches industry standards for reliable, long-term fire protection.
Key Specs
Detection Technology
Ionization and Photoelectric
Power Source
10-Year Sealed Lithium Battery
Alarm Sound Level
85 dB
Operating Temperature
40°F to 100°F
Operating Humidity
Up to 95% RH
Dimensions
127mm x 127mm x 50.8mm
Weight
358.3 grams
Warranty
10 years
Mounting Type
Twist-and-click bracket
Certification
UL 217 8th & 9th Edition, FCC
Know before you buy
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