---
product_id: 76370077
title: "Kidde Wireless Hardwired Smoke Detector, 10-Year Battery Backup, Voice Alerts, Photoelectric Sensor Wire-Free Interconnect Combination Alarm"
brand: "kidde"
price: "170 kr"
currency: NOK
in_stock: false
reviews_count: 13
url: https://www.desertcart.no/products/76370077-kidde-wireless-hardwired-smoke-detector-10-year-battery-backup-voice
store_origin: NO
region: Norway
---

# 85dB voice alerts for fire & CO warnings 10-year sealed lithium battery backup Photoelectric sensor detects smoldering fires Kidde Wireless Hardwired Smoke Detector, 10-Year Battery Backup, Voice Alerts, Photoelectric Sensor Wire-Free Interconnect Combination Alarm

**Brand:** kidde
**Price:** 170 kr
**Availability:** ❌ Out of Stock

## Summary

> 🚨 Stay ahead of danger with Kidde’s 10-year worry-free wireless safety!

## Quick Answers

- **What is this?** Kidde Wireless Hardwired Smoke Detector, 10-Year Battery Backup, Voice Alerts, Photoelectric Sensor Wire-Free Interconnect Combination Alarm by kidde
- **How much does it cost?** 170 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/76370077-kidde-wireless-hardwired-smoke-detector-10-year-battery-backup-voice)

## 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

- • **Ambient Light Sensing:** Prevents annoying late-night chirps by detecting day/night cycles, so your sleep stays undisturbed.
- • **Clear Voice & LED Alerts:** Distinct 85dB voice warnings and multi-color LED indicators keep you instantly informed of hazards or maintenance needs.
- • **Smart Dual-Sensor Protection:** Photoelectric + electrochemical sensors detect smoke & carbon monoxide for comprehensive safety.
- • **Seamless Wireless Interconnect:** Link up to 24 Kidde alarms wire-free—when one sounds, all respond, maximizing home-wide alertness.
- • **Wired Power with Battery Backup:** 120V hardwired operation paired with a decade-long lithium battery ensures uninterrupted protection.

## Overview

The Kidde Wireless Hardwired Smoke Detector combines advanced photoelectric and electrochemical sensors to detect both smoldering fires and carbon monoxide. Powered by a 120V wired source with a 10-year sealed lithium battery backup, it guarantees continuous protection even during power outages. Its wireless interconnect feature allows up to 24 devices to communicate instantly, amplifying early warnings throughout your home. Equipped with voice alerts, ambient light sensing to reduce false alarms, and clear LED status indicators, this UL-listed alarm offers a decade of reliable, smart safety backed by a 10-year limited warranty.

## Description

The Kidde Wireless Hardwired Smoke Detector, 10-Year Battery Backup, Voice Alerts, Photoelectric Sensor Wire-Free Interconnect Combination Alarm, model p4010ACSCO-W, is a wireless smoke detector that uses photoelectric sensor technology to detect visible fire particles (associated with smoldering fires) & an electrochemical sensor to detect CO gas. When smoke or fire is detected, an 85-decibel alarm will sound, the ring on the detector will turn red, & a voice alert will announce, "Fire! Fire!". The Kidde Wireless Smoke Alarm enables the extension of coverage & protection without any need for additional wiring. When one alarm sounds, they all do, providing an early warning against fire by dramatically increasing your ability to hear an alarm anywhere in your home, regardless of where the fire starts. The Kidde Wireless Smoke Detector is powered by a 120V wired power source with a 10-year lithium battery backup, which eliminates the need for battery replacements & provides coverage during a power failure. When the smoke alarm is at the end of its life span, the detector will announce, "Replace Alarm!" A test-hush button allows you to test the battery operations as well as silence nuisance alarms that may occur from cooking or shower steam. The Kidde Smoke Detector will chirp when it's time to replace the battery, however, an Ambient Light Sensing feature helps to prevent the alarm from chirping in dark conditions. The Kidde smoke detector can be used as a single unit or interconnected with up to 24 Kidde devices (18 of which can be initiated) in a multiple-station arrangement, not exceeding the NFPA (National Fire Protection Association) limit of 18 initiating devices (smoke, heat, CO). It is possible to interconnect 6 strobe lights and or relay modules. Install a smoke detector & carbon monoxide detector on every level of your home and near bedrooms to help keep your family safe from fire & poisonous gas. UL Certified with a 10-year limited manufacturer's warranty.

Review: Simple install, mix and match AC & Battery models in P4010* Range - I was looking for something that would 1) be able to interconnect to other modules, 2) have both AC and Battery Models, 3) have Combo Smoke/CO and Smoke only models in both power variants 4) Interface to the SmartThings for my Alarm System and Smart Notification* * A True 'Device to SmartThings' integration - NOT a Listener device that reacts when it 'hears' an audible alarm going off I could not find any other system that actually checks ALL those boxes. And for factor 4 taken by itself, there is only one other brand that achieves that, but does not meet the other requirements. However with this Kidde Series factors 1-3 are present out of the box and even the last part (SmartThings Integration) was actually easy to achieve with some extra parts. So I have Multiples of AC Combo, AC Smoke, DC Combo and DC Smoke - they all interconnect wirelessly and when one alerts they all go off. Now for the SmartThings part - I found a guide on SmartThings community on how to do that (search "Integrating Kidde Smoke/CO sensors into SmartThings") - the extra parts comprised a Kidde SM120X Relay, a Kidde CO120X Relay, a junction box and a pair of EcoLink Zwave Door/Window sensors - everything available right here on desertcart! I won't go into the details here, but it is a very simple install and you don't have to run any wires between modules - the only requirement is that you have at least ONE P4010AC* unit to connect the relay modules. The video shows the test function being activated on one Module and the Status showing on my SmartThings Screen (so from there I can receive notification to my Phone if I am not home, or have other Smart Actions, like turning on the lights etc in an event) The result is my home has gone from a mishmash of very much 'dumb' plain old AC Smoke units (about 30 yrs old!), some 9V Battery Smoke units (20 years old) and newer 10yr battery CO modules - NONE of which were interconnected, to a super-smart Interconnected system that very much meets todays standards. A very fun project to include the SmartThings Integration, however even without that, creating an interconnected Network of Detectors is very simple to achieve. Just to offer some clarification on some of the questions I see asked: The AC Modules (with battery backup) will NOT operate for 10 years without power being applied - estimated operation without AC is about a week I believe. (only intended to maintain operation for typical power outage situations) Get the DC modules if you can't provide AC Power - those WILL last 10 years (guaranteed to!) Interconnecting with other Kidde Alarms - ONLY the AC Modules can be connected by virtue of the hard-wire run to them - they cannot communicate wirelessly with other Modules that are not in P4010* Series. However the Battery Models will be part of the Network as long as there is an AC P4010* that has been physically connected to those non-P4010* series Models. Important to note that the Battery Models of the P4010DC* Series have no wired interconnect AT ALL and will ONLY interconnect to other P4010* Series (whether AC or DC)
Review: Do not buy. Traumatic experience. - We bought a house with several hardwired smoke and carbon monoxide detectors, and we recently replaced them all with brand-new Kidde ones. Biggest mistake ever. Three months ago, when I was nine months pregnant, the carbon monoxide alarms went off in the dead of night. I had to drag my two toddlers out into a storm while we waited for the fire department to come and confirm it was just a false alarm. My kids are still traumatized by the ear-piercing, deafening way these things shriek through the whole house. Then this morning, they went off again, this time yelling that there was smoke in the house. I had to throw my kids, including my infant, out on the deck in the pouring rain while I ran around like a chicken with my head cut off trying to turn them off. The hush buttons did absolutely nothing, and out of sheer panic, I ended up ripping them all straight out of the ceiling. Right now, there is a sad path of smoke detectors lying on the floors throughout my house. My nerves are completely shot, and I think I actually damaged my hearing standing under these stupid things for so long trying to make them stop. I've replaced them all with Google Nest, which apparently is now discontinued. My kids ask me constantly if the alarms are about to go off, and the honest answer is that I just don't know. These things are the worst.

## Features

- Photoelectric sensor technology senses visible fire particles, associated with smoldering fires, while an electrochemical sensor senses carbon monoxide
- Smoke alarm operates on a 120V wired power source with a 10-year sealed lithium battery backup
- Voice Alarm & an 85-decibel alarm announces a hazard when detected: “Fire!” = smoke or fire, "Warning! Carbon Monoxide!", or "Replace Alarm" when the alarm has reached its end-of-life span
- Enables extension of coverage & protection without any need for additional wiring
- Ambient Light Sensing feature establishes a day/night cycle and prevents late-night battery chirps in dark conditions
- LED warning light indicators alert you to various statuses: a green light indicates the unit is in proper working operation, an amber light indicates an operating error, and a red light indicate smoke or fire
- Interconnection capability: allows you to connect up to 24 Kidde smoke, heat, or CO alarms, with the possibly it interconnect 6 strobe lights or relay modules
- UL listed with a 10-Year limited manufacturer warranty on the alarm only (not a battery performance claim). Warranty begins when the alarm is powered on. If that date is unknown, it should be assumed that replacement is needed.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B076XP3GMC |
| Alarm | Audible |
| Best Sellers Rank | #538,359 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #142 in Smoke & Carbon Monoxide Alarms |
| Brand | Kidde |
| Built-In Media | Combination CO & Smoke Alarm, Quick Start Guide, mounting bracket, mounting hardware, wiring harness |
| Color | White |
| Compatible Devices | Up to 24 Kidde devices |
| Customer Reviews | 3.8 out of 5 stars 499 Reviews |
| Enclosure Material | Plastic |
| Global Trade Identification Number | 00047871273232 |
| Item Dimensions D x W x H | 5.59"D x 5.59"W x 1.91"H |
| Item Type Name | Combination Smoke & Carbon Monoxide Detector |
| Item Weight | 9.6 ounces |
| Manufacturer | Kidde |
| Manufacturer Warranty Description | 10 year limited |
| Mfr Part Number | 21027323 |
| Model Number | p4010ACSCO-W |
| Number of Items | 1 |
| Operating Humidity | 10% to 95% relative humidity, non-condensing |
| Power Source | Corded Electric |
| Product Dimensions | 5.59"D x 5.59"W x 1.91"H |
| Product Style | Hardwired Combination Carbon Monoxide & Smoke Detector |
| Sensor Type | Electrochemical |
| Style | Hardwired Combination Carbon Monoxide & Smoke Detector |
| UPC | 047871273232 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 100 °F |

## Product Details

- **Alarm:** Audible
- **Brand:** Kidde
- **Color:** White
- **Compatible Devices:** Up to 24 Kidde devices
- **Item Weight:** 9.6 ounces
- **Operating Humidity:** 10% to 95% relative humidity, non-condensing
- **Power Source:** Corded Electric
- **Product Dimensions:** 5.59"D x 5.59"W x 1.91"H
- **Style:** Hardwired Combination Carbon Monoxide & Smoke Detector
- **Upper Temperature Rating:** 100 °F

## Images

![Kidde Wireless Hardwired Smoke Detector, 10-Year Battery Backup, Voice Alerts, Photoelectric Sensor Wire-Free Interconnect Combination Alarm - Image 1](https://m.media-amazon.com/images/I/71Q7UXXbcsS.jpg)
![Kidde Wireless Hardwired Smoke Detector, 10-Year Battery Backup, Voice Alerts, Photoelectric Sensor Wire-Free Interconnect Combination Alarm - Image 2](https://m.media-amazon.com/images/I/71N5H80obLS.jpg)
![Kidde Wireless Hardwired Smoke Detector, 10-Year Battery Backup, Voice Alerts, Photoelectric Sensor Wire-Free Interconnect Combination Alarm - Image 3](https://m.media-amazon.com/images/I/71tXIaJJ2qS.jpg)
![Kidde Wireless Hardwired Smoke Detector, 10-Year Battery Backup, Voice Alerts, Photoelectric Sensor Wire-Free Interconnect Combination Alarm - Image 4](https://m.media-amazon.com/images/I/71re4RNDTAS.jpg)
![Kidde Wireless Hardwired Smoke Detector, 10-Year Battery Backup, Voice Alerts, Photoelectric Sensor Wire-Free Interconnect Combination Alarm - Image 5](https://m.media-amazon.com/images/I/81AXUiJRVbS.jpg)

## Questions & Answers

**Q: If you have multiple units and they all go off, will hushing one unit turn them all off or do you have to hush every unit individually?**
A: When the alarms are going off, there is always one that is going off and setting off all of the others. WIth the P4010 wireless alarms, that originating alarm setting off all of the others will have a green light flashing every second while all of the alarms are going off.  This will be the alarm you will want to HUSH.  This is done intentionally so that you will examine the area where the alarm is before you hush the alarm and the system. 

These alarms also have a locate feature on them. From the owner's manual:

In an interconnected system (all units will be alarming together), a unit that detects smoke or CO and initiates an alarm is called the “initiating alarm unit.” Initiating alarm units will be flashing the Green LED every second during alarm. Depending on unit locations, and the location of the source of smoke or CO, it is possible to have more than one initiating unit. If you suspect a nuisance alarm situation, you can use this feature to help you locate the initiating alarm unit(s) in a wireless alarm interconnect system. Push the button on any non-initiating wireless unit, and ALL wireless units EXCEPT the initiating alarm unit(s) will silence for two minutes. You can use the LOCATE feature repeatedly until you find the initiating alarm unit(s), or the air has been cleared of the condition causing the alarm.

**Q: Can it run with out being hardwired in**
A: Hello. This alarm has to be hardwired in and the battery is only a backup battery.  It will definitely last more than a week but will not last the whole ten years on battery alone. Probably somewhere around weeks to months, possibly years.  If you want an alarm without being hardwired, you will want the P4010DCSCO-W. https://www.kidde.com/home-safety/en/us/products/fire-safety/combination-smoke-co-alarms/p4010dcsco-w/

**Q: Does this connect with p4010dcsco**
A: Yes

**Q: Scared of installing one of these. Any info about date of manu., etc, on bad units? The one I havw says "RevA"**
A: Mine lasted 5 months and then started having false alarms at all hours of the day or night. 3 days later another unit started doing the same thing. I’d get your money back if you can

## Customer Reviews

### ⭐⭐⭐⭐⭐ Simple install, mix and match AC & Battery models in P4010* Range
*by S***S on June 24, 2021*

I was looking for something that would 1) be able to interconnect to other modules, 2) have both AC and Battery Models, 3) have Combo Smoke/CO and Smoke only models in both power variants 4) Interface to the SmartThings for my Alarm System and Smart Notification* * A True 'Device to SmartThings' integration - NOT a Listener device that reacts when it 'hears' an audible alarm going off I could not find any other system that actually checks ALL those boxes. And for factor 4 taken by itself, there is only one other brand that achieves that, but does not meet the other requirements. However with this Kidde Series factors 1-3 are present out of the box and even the last part (SmartThings Integration) was actually easy to achieve with some extra parts. So I have Multiples of AC Combo, AC Smoke, DC Combo and DC Smoke - they all interconnect wirelessly and when one alerts they all go off. Now for the SmartThings part - I found a guide on SmartThings community on how to do that (search "Integrating Kidde Smoke/CO sensors into SmartThings") - the extra parts comprised a Kidde SM120X Relay, a Kidde CO120X Relay, a junction box and a pair of EcoLink Zwave Door/Window sensors - everything available right here on Amazon! I won't go into the details here, but it is a very simple install and you don't have to run any wires between modules - the only requirement is that you have at least ONE P4010AC* unit to connect the relay modules. The video shows the test function being activated on one Module and the Status showing on my SmartThings Screen (so from there I can receive notification to my Phone if I am not home, or have other Smart Actions, like turning on the lights etc in an event) The result is my home has gone from a mishmash of very much 'dumb' plain old AC Smoke units (about 30 yrs old!), some 9V Battery Smoke units (20 years old) and newer 10yr battery CO modules - NONE of which were interconnected, to a super-smart Interconnected system that very much meets todays standards. A very fun project to include the SmartThings Integration, however even without that, creating an interconnected Network of Detectors is very simple to achieve. Just to offer some clarification on some of the questions I see asked: The AC Modules (with battery backup) will NOT operate for 10 years without power being applied - estimated operation without AC is about a week I believe. (only intended to maintain operation for typical power outage situations) Get the DC modules if you can't provide AC Power - those WILL last 10 years (guaranteed to!) Interconnecting with other Kidde Alarms - ONLY the AC Modules can be connected by virtue of the hard-wire run to them - they cannot communicate wirelessly with other Modules that are not in P4010* Series. However the Battery Models will be part of the Network as long as there is an AC P4010* that has been physically connected to those non-P4010* series Models. Important to note that the Battery Models of the P4010DC* Series have no wired interconnect AT ALL and will ONLY interconnect to other P4010* Series (whether AC or DC)

### ⭐ Do not buy. Traumatic experience.
*by M***R on June 9, 2026*

We bought a house with several hardwired smoke and carbon monoxide detectors, and we recently replaced them all with brand-new Kidde ones. Biggest mistake ever. Three months ago, when I was nine months pregnant, the carbon monoxide alarms went off in the dead of night. I had to drag my two toddlers out into a storm while we waited for the fire department to come and confirm it was just a false alarm. My kids are still traumatized by the ear-piercing, deafening way these things shriek through the whole house. Then this morning, they went off again, this time yelling that there was smoke in the house. I had to throw my kids, including my infant, out on the deck in the pouring rain while I ran around like a chicken with my head cut off trying to turn them off. The hush buttons did absolutely nothing, and out of sheer panic, I ended up ripping them all straight out of the ceiling. Right now, there is a sad path of smoke detectors lying on the floors throughout my house. My nerves are completely shot, and I think I actually damaged my hearing standing under these stupid things for so long trying to make them stop. I've replaced them all with Google Nest, which apparently is now discontinued. My kids ask me constantly if the alarms are about to go off, and the honest answer is that I just don't know. These things are the worst.

### ⭐⭐⭐⭐⭐ Junk
*by T***M on September 13, 2023*

Lasted 6 months and started going off at random hours. All 4 I bought had to be replaced

## Frequently Bought Together

- Kidde Wireless Hardwired Smoke Detector, 10-Year Battery Backup, Voice Alerts, Photoelectric Sensor Wire-Free Interconnect Combination Alarm
- Kidde Wireless Smoke Detector, 10-Year Battery, Voice Alerts, Photoelectric Sensor Wire-Free Smoke Alarm, White
- Kidde Heat Detector, Hardwired with Battery Backup & 2 LEDs, Interconnect Capability, Ideal for Garages

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*Product available on Desertcart Norway*
*Store origin: NO*
*Last updated: 2026-10-26*