---
product_id: 602345752
title: "First Alert SMI100, Battery-Operated Smoke Alarm, 2-Pack"
brand: "first alert"
price: "S/.274"
currency: PEN
in_stock: true
reviews_count: 8
category: "First Alert"
url: https://www.desertcart.pe/products/602345752-first-alert-smi100-battery-operated-smoke-alarm-2-pack
store_origin: PE
region: Peru
---

# End-of-life alert Front-access battery Precision Detection tech First Alert SMI100, Battery-Operated Smoke Alarm, 2-Pack

**Brand:** first alert
**Price:** S/.274
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay ahead of danger with smart, hassle-free smoke detection!

## Quick Answers

- **What is this?** First Alert SMI100, Battery-Operated Smoke Alarm, 2-Pack by first alert
- **How much does it cost?** S/.274 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/602345752-first-alert-smi100-battery-operated-smoke-alarm-2-pack)

## Best For

- first alert enthusiasts

## Why This Product

- Trusted first alert brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **End-of-Life Warning:** Smart alert tells you exactly when it’s time to replace the alarm—never miss a beat on safety.
- • **Test/Silence Button:** Easily test functionality or silence nuisance alarms with a simple front button press.
- • **Battery-Powered Convenience:** No wiring needed—install anywhere in minutes for hassle-free home safety.
- • **Precision Detection Technology:** Advanced sensing reduces false alarms from cooking smoke, so you only get alerts that matter.
- • **Front-Access Battery Compartment:** Swap batteries quickly without uninstalling, keeping your protection uninterrupted.

## Overview

The First Alert SMI100 is a battery-operated smoke alarm featuring advanced Precision Detection technology that minimizes false alarms while providing early fire warnings. Its easy front-access battery compartment and end-of-life alerts ensure continuous, reliable protection. Designed for quick installation and maintenance, this 2-pack offers peace of mind with professional-grade safety in a sleek, user-friendly design.

## Description

The First Alert SMI100 Battery-Operated Smoke Alarm is equipped with First Alert's Precision Detection advanced sensing technology and meets new industry standards. This battery-operated smoke alarm is easy to install and the front access battery compartment makes for easy battery replacements.

Review: Reliable Smoke Alarm That Was Quick and Easy to Install - I recently purchased the First Alert SMI100 smoke alarms and I’m really happy with them. Installation was incredibly easy since they are battery operated, so there was no wiring needed. I had both alarms mounted in just a few minutes. The design is simple and clean, and the front battery compartment makes it easy to change the battery without taking the whole unit down. I also like the test/silence button on the front because it makes testing the alarm quick and simple. The alarm itself is loud enough that you would definitely hear it throughout the house, which is exactly what you want for safety. The detectors use updated sensing technology designed to give early warning of fires while reducing nuisance alarms from things like cooking smoke.Overall, these smoke alarms give me peace of mind knowing my home has reliable protection. They were affordable, easy to install, and work exactly as expected. I would definitely recommend them to anyone looking for a simple and dependable smoke alarm.
Review: A most have a working smoke detector. - Got these for a new house. Easy to install. Dependable brand in our house works great if we get to mush smoke so got the same for my sons house.great value smoke detectors I am afraid if fire cause had ine when I was 3 in my closet. We did not have one 63 yrs ago and a cousin walked into my room and said saw smoke. Every room and garage has one.

## Features

- First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency
- Battery-operated alarm allows for easy installation and maintenance
- Front access battery compartment makes for easy battery replacements
- End-of-life warning lets you know when it’s time to replace the alarm
- Test/silence button for efficient testing to ensure alarm is working properly

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Alarm | Smoke |
| Brand | First Alert |
| Color | White |
| Item Weight | 0.6 Pounds |
| Power Source | Battery Powered |
| Style | Precision Detection |

## Product Details

- **Alarm:** Smoke
- **Brand:** First Alert
- **Color:** White
- **Item Weight:** 0.6 Pounds
- **Manufacturer:** Resideo
- **Number of Items:** 2
- **Power Source:** Battery Powered
- **Sensor Type:** Ionization
- **Style:** Precision Detection
- **UPC:** 029054022400

## Images

![First Alert SMI100, Battery-Operated Smoke Alarm, 2-Pack - Image 1](https://m.media-amazon.com/images/I/61G4T1kDyUL.jpg)

## Available Options

This product comes in different **Pattern, Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliable Smoke Alarm That Was Quick and Easy to Install
*by S***N on March 4, 2026*

I recently purchased the First Alert SMI100 smoke alarms and I’m really happy with them. Installation was incredibly easy since they are battery operated, so there was no wiring needed. I had both alarms mounted in just a few minutes. The design is simple and clean, and the front battery compartment makes it easy to change the battery without taking the whole unit down. I also like the test/silence button on the front because it makes testing the alarm quick and simple. The alarm itself is loud enough that you would definitely hear it throughout the house, which is exactly what you want for safety. The detectors use updated sensing technology designed to give early warning of fires while reducing nuisance alarms from things like cooking smoke.Overall, these smoke alarms give me peace of mind knowing my home has reliable protection. They were affordable, easy to install, and work exactly as expected. I would definitely recommend them to anyone looking for a simple and dependable smoke alarm.

### ⭐⭐⭐⭐⭐ A most have a working smoke detector.
*by P***Y on March 4, 2026*

Got these for a new house. Easy to install. Dependable brand in our house works great if we get to mush smoke so got the same for my sons house.great value smoke detectors I am afraid if fire cause had ine when I was 3 in my closet. We did not have one 63 yrs ago and a cousin walked into my room and said saw smoke. Every room and garage has one.

### ⭐⭐⭐⭐⭐ Smoke Detector
*by J***P on February 16, 2026*

The First Alert SMI100 Battery-Operated Smoke Alarm (2-Pack) is a dependable and cost-effective solution for home fire safety. From installation to daily use, this smoke alarm performs exactly as expected and delivers reliable protection you can count on.

## Frequently Bought Together

- First Alert SMI100, Battery-Operated Smoke Alarm, 2-Pack
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- Amazon Basics 8-Pack 9V Alkaline Batteries, 5-Year Shelf Life - for Smoke/CO Detector, Electronics & Audio

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**Shop now:** [https://www.desertcart.pe/products/602345752-first-alert-smi100-battery-operated-smoke-alarm-2-pack](https://www.desertcart.pe/products/602345752-first-alert-smi100-battery-operated-smoke-alarm-2-pack)

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-03-16*