---
product_id: 403224890
title: "Carbon Monoxide Detector CO Alarm EN 50291 Certified, Carbon Monoxide Alarm with LCD Display, Replaceable Battery Operated (Not Included 3 AA Batteries), CO Detector for Home 2 pack"
brand: "hydong"
price: "€ 25.09"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.cy/products/403224890-carbon-monoxide-detector-co-alarm-en-50291-certified-carbon-monoxide
store_origin: CY
region: Cyprus
---

# EN 50291-1:2018 certified Real-time LCD CO & status display Ultra loud >86dB alarm Carbon Monoxide Detector CO Alarm EN 50291 Certified, Carbon Monoxide Alarm with LCD Display, Replaceable Battery Operated (Not Included 3 AA Batteries), CO Detector for Home 2 pack

**Brand:** hydong
**Price:** € 25.09
**Availability:** ✅ In Stock

## Summary

> 🚨 Stay Ahead of Danger with Smart, Certified CO Protection!

## Quick Answers

- **What is this?** Carbon Monoxide Detector CO Alarm EN 50291 Certified, Carbon Monoxide Alarm with LCD Display, Replaceable Battery Operated (Not Included 3 AA Batteries), CO Detector for Home 2 pack by hydong
- **How much does it cost?** € 25.09 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/403224890-carbon-monoxide-detector-co-alarm-en-50291-certified-carbon-monoxide)

## Best For

- hydong enthusiasts

## Why This Product

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

## Key Features

- • **Smart Digital Display:** Clear LCD shows CO levels, temperature, humidity, and battery status for total peace of mind.
- • **Hassle-Free Installation:** Battery operated with replaceable AA batteries—no electrician needed, mount anywhere easily.
- • **Instant Alerts with Power:** Ultra-high volume alarm (>86dB) ensures you never miss a critical CO warning, day or night.
- • **Certified Safety Assurance:** Meets the latest EN 50291-1:2018 standard for trusted, up-to-date carbon monoxide detection.
- • **Versatile Protection Everywhere:** Ideal for kitchens, bedrooms, garages, hotels, and even BBQ areas—protect your lifestyle seamlessly.

## Overview

The HYDONG Carbon Monoxide Detector is a compact, battery-powered safety device certified to the latest EN 50291-1:2018 standard. Featuring an ultra-loud alarm exceeding 86dB, a real-time LCD display for CO levels and environmental data, and easy installation without wiring, this 2-pack ensures reliable, versatile protection for any home or workspace.

## Description

Full description not available

## Features

- ☀[EN 50291-1:2018 standard] HYDONG's highly accurate and reliable long-life electrochemical carbon monoxide detectors meet the latest EN 50291-1:2018 standard. The standard is effective from the beginning of 2022, paying particular attention to the year ":2018" and not ":2010. The carbon monoxide alarms will make you feel comfortable, safe and confident.
- ✿[Ultra high buzzer alarm sound] The carbon monoxide alarm will detect carbon monoxide levels 24 hours a day. The alarm time depends on the level of carbon monoxide. The digital display shows CO levels above 20ppm. 50-100PPM, alarm after approx 80 mins, red LED flashes every 2 mins; 100-300PPM, alarm after approx 30 mins, red LED flashes every 2 mins and beeps; >300PPM, alarm after approx 50s, red LED flashing quickly and uninterrupted >86dB beep.
- ☾[Digital LCD Screen] LCD Screen display CO concentration PPM Level,temperature and humidity indication and battery status. And three LED indicators display three working status: Red(Alarm mode: The red LED flases quickyly buzzer sounds"beep beep beep"), Yellow(Fault mode:The yellow LED flases twice in about 60 seconds,accompanited by two "beep beep" buzzer sound), Green(Power On, Normal Standby mode).It is recommended to check if the detector is normal every month.
- ★[Replaceable Battery Operated Carbon Monoxide Alarm] 3x1.5V AA Battery powered (Batteries no included) Alarm features Low battery warning to alert users to replace the batteries.
- ◆[Wide Application] This carbon monoxide detector suitable for every places which is possible to have carbon monoxide, such as kitchen, bathroom, bedroom, hotel, parking garage, and even in the barbecue time.Battery operated device can be easily installed and maintained without the need for an electrician,easy to mount on any wall or ceiling with the included screws.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | HYDONG |
| Part Number | ‎‎JKD-C621 |
| Product Dimensions | 12 x 12 x 9 cm; 380 g |
| Item model number | ‎‎JKD-C621 |
| Size | 2 pack |
| Colour | White |
| Style | Compact |
| Shape | Circular |
| Power Source | Battery Powered |
| Certification | EN 50291-1:2018 |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 380 g |

## Product Details

- **Brand:** HYDONG
- **Style:** Compact
- **Power source:** Battery Powered
- **Colour:** White
- **Item weight:** 380 Grams
- **Alarm:** Audible, Visual
- **Operating humidity:** 0-40 percent
- **Sensor type:** Electrochemical
- **Number of items:** 2
- **Manufacturer:** HYDONG

## Images

![Carbon Monoxide Detector CO Alarm EN 50291 Certified, Carbon Monoxide Alarm with LCD Display, Replaceable Battery Operated (Not Included 3 AA Batteries), CO Detector for Home 2 pack - Image 1](https://m.media-amazon.com/images/I/61siMqsr-OL.jpg)
![Carbon Monoxide Detector CO Alarm EN 50291 Certified, Carbon Monoxide Alarm with LCD Display, Replaceable Battery Operated (Not Included 3 AA Batteries), CO Detector for Home 2 pack - Image 2](https://m.media-amazon.com/images/I/71A5pyev0kL.jpg)
![Carbon Monoxide Detector CO Alarm EN 50291 Certified, Carbon Monoxide Alarm with LCD Display, Replaceable Battery Operated (Not Included 3 AA Batteries), CO Detector for Home 2 pack - Image 3](https://m.media-amazon.com/images/I/71mCXtf+eIL.jpg)
![Carbon Monoxide Detector CO Alarm EN 50291 Certified, Carbon Monoxide Alarm with LCD Display, Replaceable Battery Operated (Not Included 3 AA Batteries), CO Detector for Home 2 pack - Image 4](https://m.media-amazon.com/images/I/61IpzVNidWL.jpg)
![Carbon Monoxide Detector CO Alarm EN 50291 Certified, Carbon Monoxide Alarm with LCD Display, Replaceable Battery Operated (Not Included 3 AA Batteries), CO Detector for Home 2 pack - Image 5](https://m.media-amazon.com/images/I/61hZ1UwzKmL.jpg)

## Questions & Answers

**Q: How do you open the detector to put batteries in?**
A: Assuming the unit is already fixed to the wall then a tiny twist (anti clock I think) will release the unit from it's base.  Replace all 3 batteries and refix in the reverse way

**Q: How often do you have to change the battery?**
A: Approx twice a year or until it beeps to make you aware of low battery

## Customer Reviews

### ⭐⭐⭐⭐⭐ Description
*by A***R on 14 November 2023*

Bought these for my kids as they are UniWorks perfectly

### ⭐⭐⭐⭐ Good value kit
*by G***N on 29 November 2022*

Shame batties not included but otherwise great.

### ⭐⭐⭐⭐⭐ Carbon monoxide detector
*by C***. on 15 August 2023*

Good quality pair of CO detectors, make sure you put the higher than doors and windows as carbon monoxide is lighter than air.

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-03-05*