Kidde DETECT Hardwired Smoke Alarm With AA Battery Backup | 21031482 | Bulbs.com

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Smoke Detectors

Kidde DETECT Hardwired Smoke Alarm With AA Battery Backup

SKU: 20SAR | Ordering Code: 21031482  | UPC: 0047871314829

Kidde 20SAR 21031482 DETECT Hardwired Smoke Alarm With AA Battery Backup
Kidde 20SAR 21031482 DETECT Hardwired Smoke Alarm With AA Battery BackupKidde 20SAR 21031482 DETECT Hardwired Smoke Alarm With AA Battery Backup
Prices correct at 10:34 PM, 4/23/2026 and are subject to change
$36.99each
Alarm
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Product Description–

Kidde DETECT Hardwired Smoke Alarm With AA Battery Backup

  • Self-testing Alarms - For added assurance, internal components ensure alarm is always operating as expected
  • Interconnected Alarms - When one alarm sounds, they all sound, so you never miss an emergency and can get out faster
  • 2 AA Replaceable Batteries - Provides power even during short-term power outages for extra peace of mind. Change replaceable batteries every 6 months, or then you hear the low battery chirp
  • Reduces Nuisance Alarms - Enhanced sensing technology reduces false alarms ofter caused by cooking. 
  • Simple installation with the included twist-and-click mounting bracket
  • Photoelectric smoke sensor - May detect visable fire particles associated with slow smoldering fires sooner than an ionization alarms
  • End-of-life Notifications - Alarm beeps to remind you it's time to replace it 10 years after it is powered
  • Alarm Warnings
    • Fire: Red LED will flash in sync with the alarm pattern(3 long beeps). The alarms will repeat this pattern until the unit is reset or smoke is eliminated.
    • Low Battery: One chirp and amber LED flash per minute.
    • Alarm Memory: Alerts user if smoke  has been detected in the last 24 hours. If smoke has been detected, the red LED blinks every 15 sec. 

Full Specs–

Brand

Kidde

Model Number

20SAR

Volts

120

Depth (in)

2

Diameter (in)

5

Manufacturer Warranty

10 year limited

Battery Backup

Yes

Power Source

Hard Wired

Alarm Sensor Type

Photoelectric

Hush Feature

Yes

Interconnected

Yes

Quick Connect Harness

Yes

Test Button

Yes

Humidity Range

5%-95% relative humidity (RH)

Temperature Range

40˚F (4.4˚C) to 100˚F (37.8˚C)
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