Kidde Smoke Alarms Lineup Guide

Kidde Smoke Alarms: Models, Features & Selection Guide

Research and editorial review: Smoke Alarm Guide • Standards Context: Manufacturer Manuals & Fire Safety Guidelines • Updated: October 2026

Direct Answer

Kidde is one of the world's leading manufacturers of residential fire safety equipment, offering hardwired interconnected alarms (i12040, i12060, P12040), 10-year sealed lithium battery units (i9010, P3010B), TruSense multi-criteria sensors, and smart Wi-Fi connected systems.

Note: Exact end-of-life chirp and LED patterns vary by manufacturer and model (commonly 2 to 5 chirps per minute). Always check the specific unit's label or manual for the correct signal.

Manufacturer Lineup & Harness Compatibility Matrix

Kidde Model Selection:
• Hardwired Existing Wiring: Kidde i12060 (Ionization) or P12040 (Photoelectric) with 9V battery backup.
• 10-Year Battery No-Wiring: Kidde P3010B (Photoelectric with sealed 10-year lithium).
• Smoke + Carbon Monoxide: Kidde KN-COPE-IC or KN-COSM-BA combination voice alarms.
• Smart Home: Kidde Smart Smoke + CO Alarm with Wi-Fi and mobile app alerts.

Lineup of Kidde hardwired, battery, and combination smoke alarms

Kidde offers diverse hardwired, 10-year sealed, and combination smoke/CO alarms for residential safety.

Model Number & Date Code Location Guide

Identify whether you have existing 120V hardwired ceiling junction boxes.
Check local building codes for photoelectric or 10-year sealed battery mandates.
Look for the model number printed on the back of existing Kidde alarms.

Kidde manufactures residential fire protection devices spanning traditional ionization units, advanced photoelectric alarms, combination CO systems, and connected smart home alarms.

Kidde Product Lineup & Specification Matrix

Model Series	Power Source	Sensor Type	Key Features
Kidde i12040 / i12060	120V Hardwired + 9V Backup	Ionization	Fast response to flaming fires; front-load or rear battery tray; hardwire interconnect
Kidde P12040	120V Hardwired + 9V Backup	Photoelectric	Superior smoldering fire detection; highly resistant to cooking false alarms
Kidde i9010 / P3010B	10-Year Sealed Lithium	Photoelectric (P3010) / Ion (i9010)	Worry-Free 10-year sealed battery; zero battery swaps; tamper-resistant
Kidde TruSense Series	Hardwired or 10-Year Battery	Multi-Criteria Optical	Complies with UL 217 8th/9th edition polyurethane foam and cooking smoke standards
Kidde Smart Smoke + CO	120V Hardwired + Backup	Photoelectric + Electrochemical	Wi-Fi app notifications, voice location alerts, Google Home/Alexa support

Kidde Interconnect & Wiring Plugs

Kidde hardwired alarms use a proprietary 3-pin quick-connect harness:

Black Wire: 120V AC Line power.
White Wire: AC Neutral.
Yellow or Orange Wire: 9V DC Interconnect traveler line (connects up to 24 Kidde devices).

If replacing older Firex or BRK alarms, Kidde manufactures adapter plugs (such as the Kidde KA-F) that allow new Kidde alarms to plug directly into existing wiring harnesses without wire nut splicing.

Brand-Specific Wiring & Cross-Manufacturer Warnings

Do not force a Kidde alarm onto a First Alert/BRK wiring plug without a certified adapter (Kidde KA-F).
Do not use the permanent deactivation tab on Worry-Free sealed units until discarding them.

Important Safety Guideline

Ensure all interconnected hardwired alarms are certified by Kidde for common traveler wire operation. Mixing unlisted brands can cause false triggers or interconnect failure.

Troubleshooting Kidde Alarms

If your Kidde alarm is beeping or chirping, consult our dedicated Kidde smoke alarm troubleshooting guide for model-by-model error codes.

SAG

Smoke Alarm Guide Editorial Team

Technical Standards Review

Researched from verified statutory standards, public safety publications, and official manufacturer manuals. Review our complete research methodology and primary source hierarchy.