---
product_id: 604424417
title: "First Alert Smoke Alarm, Battery-Operated Detector with Test & Silence Button, SMI100, 1-Pack"
brand: "first alert"
price: "₩53892"
currency: KRW
in_stock: true
reviews_count: 13
category: "First Alert"
url: https://www.desertcart.kr/products/604424417-first-alert-smoke-alarm-battery-operated-detector-with-test-silence
store_origin: KR
region: South Korea
---

# Battery-operated, easy install Precision Detection tech Test & silence button First Alert Smoke Alarm, Battery-Operated Detector with Test & Silence Button, SMI100, 1-Pack

**Brand:** first alert
**Price:** ₩53892
**Availability:** ✅ In Stock

## Summary

> 🚨 Stay safe, stay savvy — the smoke alarm that’s smarter than your toast!

## Quick Answers

- **What is this?** First Alert Smoke Alarm, Battery-Operated Detector with Test & Silence Button, SMI100, 1-Pack by first alert
- **How much does it cost?** ₩53892 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/604424417-first-alert-smoke-alarm-battery-operated-detector-with-test-silence)

## 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 lets you know exactly when it’s time to upgrade your safety.
- • **Test & Silence Button:** Instantly verify functionality or mute nuisance alarms with a single press.
- • **Hassle-Free Battery Access:** Front-loading battery compartment for quick, no-fuss 9V replacements.
- • **Compact & Lightweight Design:** Sleek 5.4-inch profile fits seamlessly into any modern home setup.
- • **Precision Detection Technology:** Reduces false alarms from cooking, so you only get alerts that matter.

## Overview

The First Alert SMI100 is a battery-operated smoke alarm featuring advanced Precision Detection technology to minimize false alarms, a front-access battery compartment for easy maintenance, and a test/silence button for user-friendly operation. It includes a 9V alkaline battery and provides end-of-life alerts, ensuring reliable, hassle-free fire safety for your home.

## 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: Works great - Good smoke alarm, it comes with the 9 volt battery and is very easy to install.
Review: These work so well, they know when I'm making toast - Great value, high quality, function well - ask my toast how I know. They are loud enough to wake the dead, which is good because I am a heavy sleeper. They fit in the same frame as my old smoke detectors.

## 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 |
|---------------|-------|
| ASIN | B0CJMP7WHH |
| Alarm | Smoke Alarm |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | #43 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Smoke Detectors & Fire Alarms |
| Brand | First Alert |
| Color | White |
| Customer Reviews | 4.5 4.5 out of 5 stars (22,957) |
| Date First Available | September 22, 2023 |
| Included Components | 9V Alkaline Battery |
| Item Package Quantity | 1 |
| Item Weight | 8.8 ounces |
| Item model number | SMI100 |
| Manufacturer | Resideo |
| Number of Items | 1 |
| Operating Humidity | 10-95% RH |
| Pattern | SMI100 |
| Power Source | Battery Powered |
| Product Dimensions | 5.4"D x 5.4"W x 1.9"H |
| Sensor Type | Ionization |
| Size | 1-Pack |
| Style | Precision Detection |
| UPC | 029054022387 |

## Product Details

- **Alarm:** Smoke Alarm
- **Brand:** First Alert
- **Color:** White
- **Manufacturer:** Resideo
- **Number of Items:** 1
- **Operating Humidity:** 10-95% RH
- **Power Source:** Battery Powered
- **Product Dimensions:** 5.4"D x 5.4"W x 1.9"H
- **Sensor Type:** Ionization
- **Style:** Precision Detection

## Images

![First Alert Smoke Alarm, Battery-Operated Detector with Test & Silence Button, SMI100, 1-Pack - Image 1](https://m.media-amazon.com/images/I/61GUtvUotTL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great
*by M***E on December 30, 2025*

Good smoke alarm, it comes with the 9 volt battery and is very easy to install.

### ⭐⭐⭐⭐⭐ These work so well, they know when I'm making toast
*by D***V on December 29, 2025*

Great value, high quality, function well - ask my toast how I know. They are loud enough to wake the dead, which is good because I am a heavy sleeper. They fit in the same frame as my old smoke detectors.

### ⭐⭐⭐⭐⭐ Worth the money
*by K***Y on January 7, 2026*

Wonderful! Easy to install and the detector easily attaches to the base. Spending a little more is well worth not having installation issues!!!

## Frequently Bought Together

- First Alert Smoke Alarm, Battery-Operated Detector with Test & Silence Button, SMI100, 1-Pack
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**Shop now:** [https://www.desertcart.kr/products/604424417-first-alert-smoke-alarm-battery-operated-detector-with-test-silence](https://www.desertcart.kr/products/604424417-first-alert-smoke-alarm-battery-operated-detector-with-test-silence)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-23*