---
product_id: 644878320
title: "First Alert Hard-Wired w/Battery Back-up Ionization Smoke Detector"
brand: "first alert"
price: "₹ 4833"
currency: INR
in_stock: true
reviews_count: 1
category: "First Alert"
url: https://www.desertcart.in/products/644878320-first-alert-hard-wired-w-battery-back-up-ionization-smoke
store_origin: IN
region: India
---

# Hardwired with battery backup Interconnected early warning system Quick Connect Plug for easy install First Alert Hard-Wired w/Battery Back-up Ionization Smoke Detector

**Brand:** first alert
**Price:** ₹ 4833
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay ahead of danger with smart, seamless smoke detection ⚡

## Quick Answers

- **What is this?** First Alert Hard-Wired w/Battery Back-up Ionization Smoke Detector by first alert
- **How much does it cost?** ₹ 4833 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/644878320-first-alert-hard-wired-w-battery-back-up-ionization-smoke)

## 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

- • **Hassle-Free Setup:** Quick Connect Plug means no rewiring—install in minutes, stress-free.
- • **Seamless Interconnect:** When one alarm sounds, all alarms alert—total home coverage.
- • **Visual Alarm Indicator:** Instantly identify which unit triggered the alert—no guesswork.
- • **Precision Detection Tech:** Reduces false alarms from cooking—stay alert, not annoyed.
- • **Uninterrupted Protection:** Battery backup keeps you safe even during power outages.

## Overview

The First Alert Hard-Wired Ionization Smoke Detector combines advanced Precision Detection technology with a battery backup to ensure continuous, reliable fire safety. Its interconnected alarm system alerts your entire home instantly, while the Quick Connect Plug enables fast, tool-free installation. Designed for modern homes, it minimizes false alarms and provides clear visual indicators, backed by a 10-year limited warranty.

## Description

First Alert Hard-Wired w/Battery Back-up Ionization Smoke Detector

Review: Easy install - Came on time. Easy to install as a replacement.

## 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
- Through early warning interconnect, when one alarm sounds, all compatible alarms will sound
- Battery backup provides continuous protection during power outages
- Alarm indicator visually identifies the unit that initiated the alarm
- Quick Connect Plug included allows for easy installation with no need to rewire

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CV4QNTKG |
| Alarm | Audible |
| Best Sellers Rank | #386,188 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #326 in Smoke Detectors & Fire Alarms |
| Brand | First Alert |
| Built-In Media | First Alert Hard-Wired w/Battery Back-up Ionization Smoke Detector |
| Color | No Color |
| Customer Reviews | 5.0 5.0 out of 5 stars (3) |
| Global Trade Identification Number | 00029054022424 |
| Item Dimensions D x W x H | 1"D x 1"W x 1"H |
| Item Type Name | First Alert Hard-Wired w/Battery Back-up Ionization Smoke Detector |
| Item Weight | 0.6 Pounds |
| Manufacturer | First Alert |
| Manufacturer Warranty Description | 10 Years Limited |
| Model Number | SMI100-AC |
| Power Source | Hardwired |
| Sensor Type | Ionization |
| UPC | 029054022424 |
| Unit Count | 1.0 Count |

## Product Details

- **Alarm:** Audible
- **Brand:** First Alert
- **Color:** No Color
- **Global Trade Identification Number:** 00029054022424
- **Item Weight:** 0.6 Pounds
- **Manufacturer:** First Alert
- **Number of Items:** 1
- **Power Source:** Hardwired
- **Product Dimensions:** 1"D x 1"W x 1"H
- **Sensor Type:** Ionization

## Images

![First Alert Hard-Wired w/Battery Back-up Ionization Smoke Detector - Image 1](https://m.media-amazon.com/images/I/51kJRjuXvsL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy install
*by J***H on November 13, 2025*

Came on time. Easy to install as a replacement.

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**Shop now:** [https://www.desertcart.in/products/644878320-first-alert-hard-wired-w-battery-back-up-ionization-smoke](https://www.desertcart.in/products/644878320-first-alert-hard-wired-w-battery-back-up-ionization-smoke)

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*Product available on Desertcart India*
*Store origin: IN*
*Last updated: 2026-04-22*