# TLDR Review: First Alert SMI105-AC Smoke Alarm

*Published: 2024-09-14 | Updated: 2024-09-14 | Source: https://shopsavvy.com/reviews-tldr/first-alert-smi105-ac-smoke-alarm*

---

## Product: First Alert SMI105-AC Smoke Alarm
**Brand:** FIRST ALERT

## Pros
- 10-Year Battery Backup ensures long-lasting reliability without frequent replacements.
- Hardwired installation for stable and consistent power supply.
- Interconnectable design allows multiple alarms to communicate with each other, enhancing safety throughout the home.

## Cons
- Lack of additional features such as carbon monoxide detection, which is found in some other models.
- Some users found the alarm to be overly sensitive, leading to false alarms.

## Bottom Line

The First Alert SMI105-AC Hardwire Smoke Alarm with a 10-Year Battery Backup is a solid choice for those seeking a reliable and long-term smoke detection solution. Its interconnectable design allows for enhanced safety coverage in your home. However, if you're looking for a device with additional features such as carbon monoxide detection, you may want to explore other models.

## Pros vs Cons at a Glance

| Pros | Cons |
|------|------|
| 10-Year Battery Backup ensures long-lasting reliability without frequent replacements. | Lack of additional features such as carbon monoxide detection, which is found in some other models. |
| Hardwired installation for stable and consistent power supply. | Some users found the alarm to be overly sensitive, leading to false alarms. |
| Interconnectable design allows multiple alarms to communicate with each other, enhancing safety throughout the home. |  |

## Current Prices

| Retailer | Price | Availability |
|----------|-------|-------------|
| Amazon | $27.18  | Check |

---

*About this review: We pulled together findings from professional and user reviews, and cross-referenced them with ShopSavvy's pricing data from thousands of retailers to give you the short version.*