---
product_id: 63306863
title: "BRK CO850MRLi Carbon Monoxide Detector, Mains Powered with Rechargeable Battery Backup"
brand: "brk"
price: "€ 3.53"
currency: EUR
in_stock: false
url: https://www.desertcart.nl/products/63306863-brk-co850mrli-carbon-monoxide-detector-mains-powered-with-rechargeable-battery
store_origin: NL
region: Netherlands
---

# 85 dB loud alarm Rechargeable battery backup Interlink up to 12 alarms BRK CO850MRLi Carbon Monoxide Detector, Mains Powered with Rechargeable Battery Backup

**Brand:** brk
**Price:** € 3.53
**Availability:** ❌ Out of Stock

## Summary

> 🔒 Secure your home, secure your life!

## Quick Answers

- **What is this?** BRK CO850MRLi Carbon Monoxide Detector, Mains Powered with Rechargeable Battery Backup by brk
- **How much does it cost?** € 3.53 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/63306863-brk-co850mrli-carbon-monoxide-detector-mains-powered-with-rechargeable-battery)

## Best For

- brk enthusiasts

## Why This Product

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

## Key Features

- • **Powerful Alerts:** 85 dB alarm ensures you never miss a warning.
- • **Connect & Protect:** Link up to 12 alarms for a comprehensive safety network.
- • **Guaranteed Safety:** 5-year guarantee for your peace of mind.
- • **Instant Peace of Mind:** Test/reset button for quick silencing of false alarms.
- • **Stay Safe, Stay Smart:** Elevate your home safety with cutting-edge electrochemical detection.

## Overview

The BRK CO850MRLi Carbon Monoxide Detector is a mains-powered safety device equipped with a rechargeable battery backup. Featuring an advanced electrochemical sensor, it provides accurate detection of carbon monoxide levels, alerting you with a loud 85 dB alarm. The device allows for interlinking with up to 12 other alarms, ensuring comprehensive coverage throughout your home. With a user-friendly test/reset button and a 5-year guarantee, this detector is designed for reliability and peace of mind.

## Description

Full description not available

## Features

- Carbon monoxide alarm alerts you to elevated carbon monoxide levels in the home
- Electrochemical sensor accurately detects carbon monoxide and alerts you with a loud 85 dB alarm
- Instant test/reset button quickly silences false alarms; features power, alarm and fault LCD indicators
- Multi-alarm interlink system allows you to connect up to 12 mains smoke, CO2 and heat alarms for simultaneous warning
- 230 V primary mains power CO2 alarm with rechargeable lithium battery back-up; backed by 5-year guarantee; measures 134 mm (H) x 69 mm (W) x 60 mm (D)
- 5-year guarantee BS EN 50291-1: 2010

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | BRK |
| Part Number | CO850MRLI |
| Product Dimensions | 8 x 13.49 x 7.39 cm; 220 g |
| Item model number | CO850MRLI |
| Power Source | Battery Powered |
| Item Package Quantity | 1 |
| Included Components | 1 x CO850MRLI |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 220 g |

## Product Details

- **Brand:** BRK
- **Power source:** Battery Powered
- **Alarm:** Audible
- **Sensor type:** Electrochemical
- **Global Trade Identification Number:** 00029054019936
- **Manufacturer:** BRK
- **UPC:** 029054019936

## Images

![BRK CO850MRLi Carbon Monoxide Detector, Mains Powered with Rechargeable Battery Backup - Image 1](https://m.media-amazon.com/images/I/61-04wiSSdL.jpg)
![BRK CO850MRLi Carbon Monoxide Detector, Mains Powered with Rechargeable Battery Backup - Image 2](https://m.media-amazon.com/images/I/71+bYpPWGRL.jpg)
![BRK CO850MRLi Carbon Monoxide Detector, Mains Powered with Rechargeable Battery Backup - Image 3](https://m.media-amazon.com/images/I/61xE+bLL+hL.jpg)
![BRK CO850MRLi Carbon Monoxide Detector, Mains Powered with Rechargeable Battery Backup - Image 4](https://m.media-amazon.com/images/I/61VF4yVZxML.jpg)
![BRK CO850MRLi Carbon Monoxide Detector, Mains Powered with Rechargeable Battery Backup - Image 5](https://m.media-amazon.com/images/I/61baCuvejOL.jpg)

## Questions & Answers

**Q: Is thus a direct replacement for the brk co850mrli carbon monoxide detector**
A: Yes, takes max 10 min to unscrew 2 screws and replace the old one. Just need to allow around 4-5h for every minute beep while battery is charging.

**Q: This looks like the Deta 1211 which was installed in to my newbuild.  Would this fit the same base as the Deta?**
A: Why would you want to fit a different unit from a different base ? The unit comes with its own base and it is required to use that .

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**Shop now:** [https://www.desertcart.nl/products/63306863-brk-co850mrli-carbon-monoxide-detector-mains-powered-with-rechargeable-battery](https://www.desertcart.nl/products/63306863-brk-co850mrli-carbon-monoxide-detector-mains-powered-with-rechargeable-battery)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-27*