---
product_id: 622019681
title: "Smoke Detector, Hardwired with 10-Year Battery Backup, Interconnectable, LED Status Lights, 85 dB Alarm, 5-inches"
brand: "kidde"
price: "R1222"
currency: ZAR
in_stock: true
reviews_count: 8
category: "Kidde"
url: https://www.desertcart.co.za/products/622019681-smoke-detector-hardwired-with-10-year-battery-backup-interconnectable-led
store_origin: ZA
region: South Africa
---

# Interconnectable alarms 10-year battery backup 85dB loud smoke alert Smoke Detector, Hardwired with 10-Year Battery Backup, Interconnectable, LED Status Lights, 85 dB Alarm, 5-inches

**Brand:** kidde
**Price:** R1222
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay ahead of danger with Kidde’s 10-year worry-free smoke protection! 🔋

## Quick Answers

- **What is this?** Smoke Detector, Hardwired with 10-Year Battery Backup, Interconnectable, LED Status Lights, 85 dB Alarm, 5-inches by kidde
- **How much does it cost?** R1222 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/622019681-smoke-detector-hardwired-with-10-year-battery-backup-interconnectable-led)

## Best For

- kidde enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Monitoring:** LED warning lights provide instant visual status updates, so you always know your detector is working.
- • **Smart Smoke Detection:** Advanced sensing technology minimizes false alarms from cooking, keeping your home calm and secure.
- • **Unified Safety Network:** Interconnectable design ensures when one alarm sounds, all alarms alert simultaneously for faster evacuation.
- • **Hassle-Free Installation:** Hardwired with a twist-and-click mounting bracket for quick, professional-grade setup in any room.
- • **Decade-Long Peace of Mind:** Built-in 10-year lithium battery means zero battery swaps and zero chirps for a full decade.

## Overview

The Kidde Hardwired Smoke Detector 20SA10 combines cutting-edge smoke sensing technology with a 10-year built-in lithium battery backup and interconnect capability. Designed to reduce false alarms and provide loud 85-decibel alerts, it meets the latest UL 217 9th Edition and FCC standards. Its hardwired power source and LED indicators ensure reliable, low-maintenance fire safety for every living space.

## Description

Experience the next level of fire safety with the Kidde Hardwired Smoke Detector, 10-Year Battery Backup, Interconnectable, LED Warning Light Indicators, model 20SA10. This smoke detector has enhanced sensing technology that reduces false alarms often caused by cooking and sends fast alerts that help give your family more time to get out safely. Plus, it is interconnected so when one alarm sounds, they all do so you never miss an emergency (see user guide for compatibility with other Kidde models). This alarm offers a modern 5-inch design ideal for all living spaces such as living rooms, hallways, kitchens, & bedrooms. Comprehensively tested and designed to the latest UL standard for safety and reliability, the 5-inch smoke alarm is powered by 120V AC wiring with a 10-year built-in lithium battery, so you never have to change a battery for the life of the detector (not a battery performance claim). In addition, the detector is self-testing and easy to install with the included twist-and-click mounting bracket. Meets requirements of 9th Edition UL 217, FCC, and CSFM.

Review: Reliable Hardwired Smoke Detector With Long Lasting 10 Year Backup Battery - These smoke detectors work exactly as expected and integrate well into a hardwired system. The installation process was straightforward, and the interconnect feature adds an extra level of safety by ensuring all units alarm together. The LED indicators are clear and make it easy to confirm normal operation at a glance. The standout feature is the 10 year backup battery. Not having to replace batteries or worry about chirping alarms for a decade is a major advantage and reduces ongoing maintenance. For anyone upgrading or replacing hardwired smoke detectors, this two pack offers dependable performance and long term convenience at a reasonable cost.
Review: Reliable, more sensitive detector, built-in 10-year battery, fits older mounting - After 12 years of reliable service, I had to replace the older P12010 smoke detectors. This new Kidde model comes with a built in 10-year battery, so you never have to purchase expensive 9v batteries every year, has a more sensitive detector for faster warning, best of all, the installation was painless. Just loosen the 2 screws holding the old mounting plate, put in the new one and tighten the screws. I had purchased wire adapters to fit the old connector to the new one. The units are permanently wired so that if one alarm sounds, they all do. The unit is good looking and takes up the same space as the old.

## Features

- DETECTS SMOKE: Sounds a loud 85-decibel alarm when smoke is detected - 3 long beeps with red LED light flashing in time, repeating.
- HARDWIRED and 10-YEAR BATTERY BACKUP: Operates on 120V AC wiring (installed in the ceiling). No battery changes for 10 years and saves up to 40 Dollar over the life of the detector.
- ENHANCED SENSING TECHNOLOGY: Reduces false alarms often caused by cooking. Comprehensively tested to meet the latest UL standards, meets UL 217 9th Edition and FCC standards.
- SELF-TESTING ALARM: Internal components ensure alarm is always operating as expected. Not a substitute for a manual push test, perform a button test once per week to verify alarm operation.
- INTERCONNECT CAPABILITY: When one alarm sounds, they all sound, so you can get out faster. (Different models offer different interconnection options and requirements. See User Guide for more info.)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Kidde |
| Color | White |
| Item Weight | 9.39 ounces |
| Power Source | Hardwired |
| Product Dimensions | 1.88"D x 5"W x 5"H |
| Style | 9th Edition |

## Product Details

- **Brand:** Kidde
- **Style:** 9th Edition
- **Power Source:** Hardwired
- **Color:** White
- **Product Dimensions:** 1.88"D x 5"W x 5"H
- **Item Weight:** 0.59 Pounds
- **Alarm:** Smoke Detector
- **Operating Humidity:** Up to 95% relative humidity (RH), non-condensing
- **Upper Temperature Rating:** 100 Degrees Fahrenheit
- **Sensor Type:** Photoelectric

## Images

![Smoke Detector, Hardwired with 10-Year Battery Backup, Interconnectable, LED Status Lights, 85 dB Alarm, 5-inches - Image 1](https://m.media-amazon.com/images/I/719ckatHhhL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliable Hardwired Smoke Detector With Long Lasting 10 Year Backup Battery
*by M***I on December 27, 2025*

These smoke detectors work exactly as expected and integrate well into a hardwired system. The installation process was straightforward, and the interconnect feature adds an extra level of safety by ensuring all units alarm together. The LED indicators are clear and make it easy to confirm normal operation at a glance. The standout feature is the 10 year backup battery. Not having to replace batteries or worry about chirping alarms for a decade is a major advantage and reduces ongoing maintenance. For anyone upgrading or replacing hardwired smoke detectors, this two pack offers dependable performance and long term convenience at a reasonable cost.

### ⭐⭐⭐⭐⭐ Reliable, more sensitive detector, built-in 10-year battery, fits older mounting
*by R***E on January 10, 2026*

After 12 years of reliable service, I had to replace the older P12010 smoke detectors. This new Kidde model comes with a built in 10-year battery, so you never have to purchase expensive 9v batteries every year, has a more sensitive detector for faster warning, best of all, the installation was painless. Just loosen the 2 screws holding the old mounting plate, put in the new one and tighten the screws. I had purchased wire adapters to fit the old connector to the new one. The units are permanently wired so that if one alarm sounds, they all do. The unit is good looking and takes up the same space as the old.

### ⭐⭐⭐⭐⭐ Smoke Detectors Must Be Changed Every 10 Years! Make it count!
*by B***K on December 31, 2025*

I just found out that smoke detectors must be changed every 10 years. My old Kidde hardwired smoke detectors have been working perfectly for 15 years, no false chirps or beeps. I do change the 9V battery every year which really helps. But even with maintenance, the parts can fail and render the smoke detectors inoperable and inaccurate. Your insurance company might also refuse or reduce your payout in the event of a fire if you have old detectors. My search for replacements was pretty easy since Kidde is well known and well respected, and I've had no issues with them for the past 15 years. I purchased the hardwired interconnectable version with the 10-year battery backup. The thought of not having to change the 9V batteries each year and not climb up and down ladders was a huge motivator. The entire process of taking down the old smoke detector pictured on the right and putting up the new one on the left took a few minutes for each unit. Even though it's essentially the same company and detector, they did change the plug and mounting bracket. Although the mounting bracket looks the same, the new one is much thinner, and the new smoke detector will not fit on the old mounting bracket. To make it even easier, I also purchased the Kidde adapter so I didn't need to rewire any of the units with the new plug. So I took down the old unit, took down the old mounting bracket by loosening two screws, installed the new mounting bracket, and installed the new smoke detector with the new plug adapter. Again, about 2 minutes for each unit. I did read the instructions and did follow them. The one note to save you time and trouble is to make sure you activate the battery BEFORE you plug the unit into the wiring harness. You will hear a beep when you activate the battery either by mounting it to the bracket, which I did before I installed the bracket on the ceiling, or with a screw driver prior to mounting it to the bracket. After you hear the beep, then plug it in and mount it to the bracket. If you're looking for an easy replacement for your hardwired, interconnectable smoke detectors that require no maintenance for 10 years, this is the one!

## Frequently Bought Together

- Kidde Hardwired Smoke Detector, 10-Year Battery Backup, Interconnectable, LED Warning Light Indicators
- Kidde Quick Connect Smoke Detector Adapter Plug, Smoke Alarm Wiring Harness, Compatible with Kidde Hardwired Smoke, Carbon Monoxide, & Combination Smoke & Carbon Monoxide Detectors
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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-02*