---
product_id: 55778090
title: "KOFOHO Kidde Carbon Monoxide Detector Alarm | AC Powered with Battery Back-up | Model KN-COB-DP2, White, 1"
brand: "kidde"
price: "HK$28"
currency: HKD
in_stock: true
reviews_count: 5
url: https://www.desertcart.hk/products/55778090-kofoho-kidde-carbon-monoxide-detector-alarm-ac-powered-with-battery
store_origin: HK
region: Hong Kong
---

# Battery backup ensures 24/7 protection Red LED alarm for instant alert Tamper-resist feature for secure monitoring KOFOHO Kidde Carbon Monoxide Detector Alarm | AC Powered with Battery Back-up | Model KN-COB-DP2, White, 1

**Brand:** kidde
**Price:** HK$28
**Availability:** ✅ In Stock

## Summary

> 🛡️ Stay one step ahead of danger with Kidde’s smart CO detector!

## Quick Answers

- **What is this?** KOFOHO Kidde Carbon Monoxide Detector Alarm | AC Powered with Battery Back-up | Model KN-COB-DP2, White, 1 by kidde
- **How much does it cost?** HK$28 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/55778090-kofoho-kidde-carbon-monoxide-detector-alarm-ac-powered-with-battery)

## 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

- • **Easy Operation:** Test/reset button lets you verify functionality and silence false alarms instantly
- • **Instant Alerts:** Red LED lights up and sounds a loud alarm at the first sign of danger
- • **Secure & Reliable:** Tamper-resist feature prevents accidental unplugging or tampering
- • **Long-Term Assurance:** End-of-life alarm reminds you to replace after 10 years for continuous peace of mind
- • **Uninterrupted Safety:** AC powered with battery backup keeps you protected even during outages

## Overview

The Kidde KN-COB-DP2 Carbon Monoxide Detector combines AC power with battery backup to ensure uninterrupted protection against the silent killer. Featuring tamper-resist technology, dual LED indicators, and a test/reset button, it offers reliable, easy-to-use safety. With a 10-year end-of-life alarm, this sleek white unit guarantees long-term peace of mind for your home or office.

## Description

no

Review: This is just the ideal Kidde Carbon Monoxide Alarm for me – simple, reliable, and affordable peace of mind. Installation could not have been simpler: plug it into a standard outlet, and you're ready to go. I prefer the slim design greatly; it does not take up the second outlet, so I can still use that area. Why I’m content with it: Easy to set up: No special tools or difficult setup — plug and play. Definitive signals: It features an easy-to-read digital display that can give confidence that it’s working properly. Loud Alarm: It is loud, as I have tried out and is able to wake me up or gain my attention quickly. Trustworthy brand: Kidde is a brand that can be trusted, and this smoke detector is robustly built. All in all, it gives me actual peace of mind that it is protecting my home. I'm likely to buy another soon for upstairs — would highly recommend!
Review: Bien conçu et prix resonnable

## Features

- Tamper resist feature – Can be activated to cause unit to go into alarm if it has been unplugged or has come loose from the outlet
- Two LED’s: Red - Illuminates when in alarm mode. Green – AC power is present, normal operation
- Test/reset button: Tests CO alarm circuit operation and allows you to immediately silence the alarm
- End of life alarm: Alerts user to replace CO alarm after 10-years of operation
- Provides peace of mind against the silent killer; Temperature Range: 40˚F (4.4˚C) to 100˚F (37.8˚C)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00M48BH30 |
| Average Battery Life | 4380 Hours |
| Batteries | 2 AA batteries required. (included) |
| Batteries Required? | Yes |
| Batteries included? | Yes |
| Battery Cell Type | Alkaline |
| Colour | White |
| Customer Reviews | 4.7 4.7 out of 5 stars (34,351) |
| Date First Available | 22 July 2014 |
| Finish | White |
| Included Components | two AA batteries |
| Item Package Quantity | 1 |
| Item Weight | 18 g |
| Item model number | KN-COB-DP2 |
| Manufacturer | KOFOHO |
| Part Number | 900-0263 |
| Pattern | Detector |
| Power Source | AC Plug-In with Battery Backup |
| Product Dimensions | 6.99 x 3.81 x 11.43 cm; 18 g |
| Size | 1 |
| Style | 1 Pack |
| Voltage | 120 Volts |

## Product Details

- **Alarm:** Audible
- **Brand:** Kidde
- **Colour:** White
- **Global Trade Identification Number:** 00047871257591
- **Item weight:** 18 Grams
- **Operating humidity:** 10% to 95% relative humidity, non-condensing
- **Power source:** AC Plug-In with Battery Backup
- **Sensor type:** Electrochemical
- **Style:** 1 Pack
- **Upper temperature rating:** 37.8 Degrees Celsius

## Images

![KOFOHO Kidde Carbon Monoxide Detector Alarm | AC Powered with Battery Back-up | Model KN-COB-DP2, White, 1 - Image 1](https://m.media-amazon.com/images/I/71EIUICeeRL.jpg)
![KOFOHO Kidde Carbon Monoxide Detector Alarm | AC Powered with Battery Back-up | Model KN-COB-DP2, White, 1 - Image 2](https://m.media-amazon.com/images/I/71O4s5SBmNS.jpg)
![KOFOHO Kidde Carbon Monoxide Detector Alarm | AC Powered with Battery Back-up | Model KN-COB-DP2, White, 1 - Image 3](https://m.media-amazon.com/images/I/813dc0AXAES.jpg)
![KOFOHO Kidde Carbon Monoxide Detector Alarm | AC Powered with Battery Back-up | Model KN-COB-DP2, White, 1 - Image 4](https://m.media-amazon.com/images/I/71iJFyX9PwS.jpg)
![KOFOHO Kidde Carbon Monoxide Detector Alarm | AC Powered with Battery Back-up | Model KN-COB-DP2, White, 1 - Image 5](https://m.media-amazon.com/images/I/81iTNBionWS.jpg)

## Questions & Answers

**Q: Does this plug straight in? Does the detector sit directly on the plug?**
A: yes

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by L***D on 18 July 2025*

This is just the ideal Kidde Carbon Monoxide Alarm for me – simple, reliable, and affordable peace of mind. Installation could not have been simpler: plug it into a standard outlet, and you're ready to go. I prefer the slim design greatly; it does not take up the second outlet, so I can still use that area. Why I’m content with it: Easy to set up: No special tools or difficult setup — plug and play. Definitive signals: It features an easy-to-read digital display that can give confidence that it’s working properly. Loud Alarm: It is loud, as I have tried out and is able to wake me up or gain my attention quickly. Trustworthy brand: Kidde is a brand that can be trusted, and this smoke detector is robustly built. All in all, it gives me actual peace of mind that it is protecting my home. I'm likely to buy another soon for upstairs — would highly recommend!

### ⭐⭐⭐⭐⭐ Review
*by R***E on 9 December 2019*

Bien conçu et prix resonnable

### ⭐⭐⭐⭐⭐ Review
*by J***E on 2 June 2019*

Installed in living room next to propane fireplace

## Frequently Bought Together

- Kidde Carbon Monoxide Detector, Plug In Wall with AA Battery Backup, Test-Hush Button
- First Alert SMI100, Battery-Operated Smoke Alarm, 1-Pack
- Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-05*