Last updated at 20/10/2026 18:30:53
First Alert Battery Smoke Alarm
Delivery between 27–30 Oct $29
First Alert Battery Smoke Alarm
Free delivery between 28 Oct – 3 Nov
First Alert Battery Smoke Alarm
Delivery between 25–29 Oct $41
Sensor de humo de batería SMI100 Marca: First Alert
Delivery $135.70
SMI100, Battery-Operated Smoke Alarm, 2-Pack
Free delivery between 28 Oct – 3 Nov
| Detected Substances | Smoke |
| Sensor Type | Ionization |
| Detection Method | Precision Detection technology |
| Detection Range | 10 ft (receiver range) |
| Certifications | UL Listed |
First Alert Battery Smoke Alarm
Delivery between 27–30 Oct $29
First Alert Battery Smoke Alarm
Free delivery between 28 Oct – 3 Nov
First Alert Battery Smoke Alarm
Delivery between 25–29 Oct $41
Sensor de humo de batería SMI100 Marca: First Alert
Delivery $135.70
SMI100, Battery-Operated Smoke Alarm, 2-Pack
Free delivery between 28 Oct – 3 Nov
| Detected Substances | Smoke |
| Sensor Type | Ionization |
| Detection Method | Precision Detection technology |
| Detection Range | 10 ft (receiver range) |
| Certifications | UL Listed |
in 15 offers
The lowest price for First Alert Battery Smoke Alarm smi100 right now is $37.60 at desertcart.com.au, compared across 5 retailers.
The all-time low was $34.78 on 5 Sept 2026 — today's price is 8% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 20 Oct 2026.
First Alert Battery Smoke Alarm smi100
