Kidde alarms and accessories can be interconnected with other Kidde alarms* and accessories, as well as specified brands and models of interconnect compatible alarms (see table below). Connection of Kidde products to a non-specified manufacturer's interconnect system, or connection with non-specified equipment from another manufacturer into an existing Kidde system could result in nuisance alarming, failure to alarm, or damage to one or all of the devices in the interconnect system.
IMPORTANT: Be advised that models without battery backup will not respond during an AC power failure.
DANGER: Electrical shock hazard! Before removing an installed alarm from its mounting bracket, turn off power at the main service panel by removing the appropriate fuse or switching appropriate circuit breaker to the OFF position. When all alarms have been re-installed, re-apply power to the alarms. For more detailed instructions on removal of Kidde smoke alarms, consult the smoke alarm removal article or your user’s manual.
*Kidde alarms interconnect with all Kidde, Fyrnetics, Nighthawk, Silhouette, and Lifesaver branded alarms, strobe lights, and relay modules with interconnect functionality.
If your unit is not listed below, it is not compatible with Kidde Alarms. The alarm models listed below have been tested to be interconnect compatible. That compatibility exists with or without the use of a Kidde wiring harness adapter. The KA-F2 wiring adapter for Firex to Kidde connection, and the KA-B2 wiring adapter for First Alert® / BRK® to Kidde connection, make it easier to install the below models without any rewiring. These adapters can be found online and at many home centers and hardware outlets. For specified models, brands, and devices, refer to the following:
Brand |
Model |
Interacts with Kidde Model |
| Firex** |
FADC ADC AD |
1275 1276 1285 PE120 PI2000 KN-COSM-IB i12020 i12040 i12060 i12080 i4618 KN-COP-IC KN-COB-IC RF-SM-ACDC |
| First Alert® and BRK® |
SA4121B 4120 4919 5919 86 RAC |
1235 1275 1276 1285 PE120 PI2000 i12020 i12040 i12060 i12080 |
**Attention Owners of Firex products: Kidde acquired the manufacturer of Firex branded products in 2009 - Invensys Controls no longer manufactures or supports these products. If you own any of these products, they should be replaced with a current Kidde model. For more information, see What products will Firex alarms interconnect with?
*For more information about your specific alarm, refer to your user’s manual.
