Questions and Answers for Kidde Firex Smoke Detector, Hardwired with 9-Volt Battery Backup, Smoke Alarm, 6-Pack

A:  Hello. You will want the P4010ACSCO model 21029893.

A:  Hello. No, this is a smoke detector. It only detects particles of combustion. You would want the P4010ACSCO Internet # 305261308, Model # 21029893, Store SKU # 1003187529, Store SO SKU # 1003181539.

A:  Hello. There is no direct replacement for your alarms. That being said, you can use any of our current alarms to replace your older alarms. You will have to take down all of the older alarms before putting up any new alarms. You will have to change out the mounting brackets at each location but that will just take a screwdriver to change out. You will either have to change out and rewire the wiring harness plugs at each location or you can choose to use the KA-F2 adaptors to adapt the old plugs to our new alarms. The adaptors would plug into the old plugs and the new alarms would plug into the adaptors. The model for the adaptor pack is the 21028461 which includes the KA-F2 and the KA-B2 for some of the older BRK/First Alert plugs.

A:  Hello. There is no direct replacement for your alarms. That being said, you can use any of our current alarms to replace your older alarms. You will have to take down all of the older alarms before putting up any new alarms. You will have to change out the mounting brackets at each location but that will just take a screwdriver to change out. You will either have to change out and rewire the wiring harness plugs at each location or you can choose to use the KA-F2 adaptors to adapt the old plugs to our new alarms. The adaptors would plug into the old plugs and the new alarms would plug into the adaptors. The model for the adaptor pack is the 21028461 which includes the KA-F2 and the KA-B2 for some of the older BRK/First Alert plugs.

A:  Hello. No, the unit will chirp for low battery without the battery. It has to have the backup battery at all times, per fire codes. You may be happier with the P4010ACS Internet # 305261303, Model # 21029894, Store SKU # 1003187544. This alarm will have a 10 year backup battery so that you don't have to change out the battery.

A:  Hello. Yes, the new alarm will fit onto the old wiring harness plug of the old alarm.

A:  Hello. Yes. This alarm will have the same wiring harness plug and the same mounting bracket as the KN-COSM-IB.

A:  Hello. There is no direct replacement for your alarms. That being said, you can use any of our current alarms to replace your older alarms. You will have to take down all of the older alarms before putting up any new alarms. You will have to change out the mounting brackets at each location but that will just take a screwdriver to change out. You will either have to change out and rewire the wiring harness plugs at each location or you can choose to use the KA-F2 adaptors to adapt the old plugs to our new alarms. The adaptors would plug into the old plugs and the new alarms would plug into the adaptors. The model for the adaptor pack is the 21028461 which includes the KA-F2 and the KA-B2 for some of the older BRK/First Alert plugs.

A:  We do not have an adaptor for this BRK wiring harness.

A:  Hello. S1966 is not the model of the alarm. The model will be on the back of the alarm. It will say the word "Model" and then give the model in letters. Call us at 1-800-880-6788 and we can help you figure out the replacement for your alarms.