in 5 offers
The lowest price for First Alert Smoke Alarm Hardwire 10-Year Battery Backup right now is $69.12 at Raptor AU, compared across 4 retailers.
The all-time low was $26.47 on 10 Sept 2026 — today's price is 161% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 27 Oct 2026.
First Alert Smoke Alarm Hardwire 10-Year Battery Backup
Last updated at 27/10/2026 06:02:19
Brk Smi105ac Smoke Alarm, Smoke, Hardwired, Battery Backup, Smoke Detector, Ionization, Hardwired
Delivery $83.79
Hardwire Smoke Alarm with 10-Year Battery Backup
Delivery between 2–5 Nov $29
Hardwire Smoke Alarm with 10-Year Battery Backup
Free delivery between 4–10 Nov
First Alert Hardwire Smoke Alarm with 10-Year Battery Backup
Delivery $39.40
| Detected Substances | Smoke |
| Sensor Type | Ionization |
| Detection Method | Precision Detection advanced sensing technology |
| Alarm Sound Level | 85 dB at 10 feet |
| Standards Compliance | Meets the latest industry standards |
Brk Smi105ac Smoke Alarm, Smoke, Hardwired, Battery Backup, Smoke Detector, Ionization, Hardwired
Delivery $83.79
Hardwire Smoke Alarm with 10-Year Battery Backup
Delivery between 2–5 Nov $29
Hardwire Smoke Alarm with 10-Year Battery Backup
Free delivery between 4–10 Nov
First Alert Hardwire Smoke Alarm with 10-Year Battery Backup
Delivery $39.40
| Detected Substances | Smoke |
| Sensor Type | Ionization |
| Detection Method | Precision Detection advanced sensing technology |
| Alarm Sound Level | 85 dB at 10 feet |
| Standards Compliance | Meets the latest industry standards |
