Kidde 20SA10-V Hardwired Smoke Detector
- 120V AC hardwired, built-in 10-year battery backup
- 85 dB alarm, red LED and voice alerts
- Interconnects with other Kidde alarms
- UL 217 10th Edition and FCC tested
- Reduced cooking and steam false alarms
- 10-year limited warranty from purchase
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A smart replacement for hardwired smoke alarms where a sealed backup battery and voice warnings are wanted. Interconnect works only with other Kidde units, and the sensor type is not stated.
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ASIN: B0D5T3FGWDModel: 20SA10-VCategory: Smoke Detectors & Fire Alarms
Overview
Not a battery-only alarm, this Kidde detector wires into household power with a sealed backup battery for outages. When smoke is detected it sounds a loud tone, flashes red and speaks a fire warning, and wired units sound together.
A sealed backup battery means no yearly swaps and no low battery chirps in a hardwired home. Interconnect works only with Kidde alarms, and the listing does not say what sensor is inside or what comes in the box.
Who it's for
Homeowners, landlords and electricians updating wired alarms to the current UL standard. Homes without alarm wiring should look at sealed battery models instead.
Pros and cons
- Sealed backup battery, no swaps
- Voice alert says fire
- Fewer cooking false alarms
- Wired interconnect with Kidde units
- Interconnect limited to Kidde alarms
- Sensor type not listed
- Needs existing wiring
Performance notes
Detection depends on smoke reaching the chamber, so placement away from kitchens and bathrooms limits nuisance alarms. Interconnect wiring passes the signal so every linked unit sounds at once.
Specifications
| Brand | Kidde |
|---|---|
| Model | 20SA10-V |
| Power & efficiency | |
| Power Source | 120V AC hardwired, built-in 10-year battery backup |
| Warranty & support | |
| Manufacturer Warranty Description | 10-year limited warranty |
| Other details | |
| Alarm | 85 dB, red LED, voice alerts |
| Interconnect | Wired, with other Kidde alarms |
| Special features | Reduced false alarms from cooking and steam |
| Specification met | UL 217 10th Edition, FCC |
Frequently asked questions
What comes in the box with the Kidde 20SA10-V?
The listing does not itemize the box. It is sold as 1 pack; confirm a mounting bracket and wiring connector are included before install.
Will the Kidde 20SA10-V interconnect with First Alert alarms?
The listing says it connects with other Kidde alarms only.
Does the Kidde 20SA10-V need battery changes?
No. It has a built-in 10-year battery backup.
Does the Kidde 20SA10-V detect carbon monoxide?
No. It is listed as a smoke detector only.