---
product_id: 3161778
title: "Universal Security Instruments USI-1204 University Security Instruments Electric 1204 Hardwired Ionization Smoke & Fire Alarm | 120-Volt Fast Responding Alarm - Comes with Backup Battery"
brand: "black+decker"
price: "0.62 OMR"
currency: OMR
in_stock: false
reviews_count: 8
url: https://www.desertcart.com.om/products/3161778-universal-security-instruments-usi-1204-university-security-instruments-electric-1204
store_origin: OM
region: Oman
---

# 120V hardwired power Backup 9V battery ensures uptime Fast ionization smoke detection Universal Security Instruments USI-1204 University Security Instruments Electric 1204 Hardwired Ionization Smoke & Fire Alarm | 120-Volt Fast Responding Alarm - Comes with Backup Battery

**Brand:** black+decker
**Price:** 0.62 OMR
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Stay ahead of danger with lightning-fast, always-on fire protection ⚡

## Quick Answers

- **What is this?** Universal Security Instruments USI-1204 University Security Instruments Electric 1204 Hardwired Ionization Smoke & Fire Alarm | 120-Volt Fast Responding Alarm - Comes with Backup Battery by black+decker
- **How much does it cost?** 0.62 OMR with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/3161778-universal-security-instruments-usi-1204-university-security-instruments-electric-1204)

## Best For

- black+decker enthusiasts

## Why This Product

- Trusted black+decker brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Interconnect:** Link up to 18 units for whole-home coverage and synchronized alerts.
- • **Rapid Fire Detection:** Ionization sensor reacts instantly to fast-flaming fires, giving you critical extra seconds.
- • **User-Friendly Silence:** Convenient silencer button lets you mute false alarms without compromising safety.
- • **Clear Status Indicators:** Red LED flashes on smoke detection; green LED confirms power is active—no guesswork.
- • **Uninterrupted Protection:** Hardwired 120V power with backup battery means your home stays safe even during outages.

## Overview

The Universal Security Instruments USI-1204 is a hardwired ionization smoke and fire alarm designed for fast detection of flaming fires. Powered by 120 volts with a backup 9V battery, it ensures continuous protection in homes, apartments, and mobile homes. Featuring smart interconnect capability for up to 18 units, clear LED status indicators, and a silencer button, it combines reliability with user-friendly operation to safeguard your living space.

## Description

World and Main carries a full assortment of plumbing parts and fixtures to meet every project need and retail price point. To make shopping easier for your customer, and stocking shelves a breeze, every repair part is color-coded and each retail pack includes complete, easy-to-understand instructions helping to make every project a successful one.

## Features

- QUICK RESPONSE | Ionization Smoke and Fire Alarm Responds Quickly to Fast-Flaming Fires to Protect your Family against Deadly Threats in the Home
- EASY READ | Red LED Light Flashes when Smoke is Detected and the Green LED Light Indicates that Power is Functioning
- 120-VOLT | AC Hardwired Alarm with Backup Battery is Suitable for Houses, Apartments and Mobile Homes
- FEATURES | Convenient Silencer Button for Non-Hazardous Alarms - Smart Interconnect to Connect up to 18 Units

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Universal Security Instruments |
| Style | Hardwired |
| Power Source | Battery Powered |
| Item Weight | 8 ounces |
| Alarm | Visual |
| Sensor Type | Ionization |
| Global Trade Identification Number | 00042741012041 |
| Number of Items | 1 |
| Manufacturer | World & Main, LLC |
| UPC | 006989986939 042741012041 |
| Part Number | USI-1204 |
| Product Dimensions | 5.31 x 2 x 5.31 inches |
| Item model number | USI-1204 |
| Batteries | 1 9V batteries required. |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Handle/Lever Placement | wall-mount |
| Included Components | SMK ALRM USI ELEC. 120VAC W/9V |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Universal Security Instruments
- **Style:** Hardwired
- **Power Source:** Battery Powered
- **Item Weight:** 8 ounces
- **Alarm:** Visual
- **Sensor Type:** Ionization
- **Global Trade Identification Number:** 00042741012041
- **Number of Items:** 1
- **Manufacturer:** World & Main, LLC
- **UPC:** 006989986939 042741012041

## Images

![Universal Security Instruments USI-1204 University Security Instruments Electric 1204 Hardwired Ionization Smoke & Fire Alarm | 120-Volt Fast Responding Alarm - Comes with Backup Battery - Image 1](https://m.media-amazon.com/images/I/71M0QoYsu-L.jpg)
![Universal Security Instruments USI-1204 University Security Instruments Electric 1204 Hardwired Ionization Smoke & Fire Alarm | 120-Volt Fast Responding Alarm - Comes with Backup Battery - Image 2](https://m.media-amazon.com/images/I/510qSoDm2NL.jpg)
![Universal Security Instruments USI-1204 University Security Instruments Electric 1204 Hardwired Ionization Smoke & Fire Alarm | 120-Volt Fast Responding Alarm - Comes with Backup Battery - Image 3](https://m.media-amazon.com/images/I/51BPTK07JSL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Suggest You Search for Best Price
  

*by J***F on Reviewed in the United States on December 9, 2018*

If you have an installed USI-1204, you can just replace the screw on bottom without having to change the base including rewiring. Mine was installed in 2004 (need to replace every 10 years) and it worked great for me. Very easy to just plug into already existing base and screw on the new bottom.However, suggest you search for best price. Amazon market merchant 7Day sold for $53 and now dropped it to$43 - this is a very high price. Amazon Prime at $30 per.  USI Electric (from their online store) for $18 per.Price was important for me as I had to replace 9 units in my home.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    If One Of Them Goes Off, You Might As Well Replace Them All At The Same Time
  

*by S***H on Reviewed in the United States on July 16, 2015*

While we have a full security system in our home, we also had two of these units installed when we completed a new addition.  Believe it or not, they each lasted about eleven years before failing with a loud and constant wailing--at 3:00am on consecutive nights. Being somewhat confused and tired on the night when the first one went off, we thought that they were wired into our primary alarm system.  When we tried to disable them on the alarm panel, it set off our main system resulting in calls from the security company monitors.  Unfortunately we forgot that they were independent of the primary system and our efforts to disable them actually caused us to set off the main panel. OOPS!  I finally figured out how to disable them and pulled the front panel off and disconnected the battery.  That worked so well the first night that I was ready for the second one to go off on the next night.  I wish that I had simply disconnected the second one so that we didn't have to deal with another alarm that second night.  Live and learn. So if one of these does fail in the middle of the night, just pull off the front cover by twisting it to the left and then pull apart the plastic battery connector.Then order two of these USI 1204's.  These are the perfect replacement.  You don't have to mount the new base that comes with it, just remove the top part with the battery in it, pull out the plastic sleeve to activate the battery, and twist the new cover into the old mount.  A green light should come on and you're "good to go".  Good price, fast delivery, and easy to install.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Great replacement!
  

*by A***Y on Reviewed in the United States on December 28, 2018*

The house was built 13 years ago, and these were installed at construction. The newer models have a different base, and I've been happy with the performance of this version since the house was built, so as the old ones needed replacing, I opted for exact replacements rather than a full upgrade to the new bases. These are hard to find nowadays and the ones here are Amazon are not old stock, but rather newly manufactured ones, which means they work perfectly. Super easy to replace on the old sockets, and I've not had a bad one in all the ones I've replaced. Excellent purchase!

## Frequently Bought Together

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-02-20*