A woman tucks a child into bed beside a glowing FP1820W2-R baby monitor at night.
FP1820W2-R alarm, manual, screws, and box on a wooden surface beside a plant.
Line drawing of FP1820W2-R with dimensions: 114mm x 94mm x 39.5mm.
White FireAngel Pro FP1820W2-R carbon monoxide alarm with indicator lights and test button.
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FP1820W2-R gas detector on a kitchen shelf beside a white jug and towel.
Which? Best Buy August 2025 badge for CO alarm on green background.

FP1820W2-R

Pro Connected Smart Carbon Monoxide Alarm, Battery Powered

CO 5 Year Warranty Battery included Battery Silence

Product description

With enhanced sensing, multiple installation styles and the option to enable alerts and test via your mobile, the Pro Connected Smart CO detector offers the highest level of protection for you and your family.

As well as our own rigorous testing processes the units are also assessed by the British Standards Institution (BSI) who have approved the unit as Kitemark certified, so you can rest assured knowing you’re protected against CO.

  • The latest electrochemical sensor in the FireAngel Pro Connected CO alarm provides instant alerts to dangerous levels of the silent killer
  • Use independently as a single unit or wirelessly interlink with multiple FireAngel Pro Connected smoke alarms, kitchen heat alarms, carbon monoxide detectors and accessories including the gateway and the FireAngel Connected app (iOS and Android compatible) to ensure alerts in secluded areas will be heard across all alarms instantly
  • The alarm has been designed to either be wall mounted or left portable so you can take it on holiday for protection on the go. It’s also suitable for caravans, motor caravans and boats following advice from BS EN 50292-2013
  • The device comes with a sealed panasonic battery which has been rigorously tested to ensure endurance. This means that under normal circumstances you can expect the alarm to be functional for 10 years without ever having to find replacement batteries
  • Optional – install this alarm alongside the FireAngel Pro Connected Gateway to enable instant updates to your smart phone or email
  • Suitable for homes in England, Wales and Scotland
  • FireAngel alarms are rigorously tested to ensure unrivalled quality and longevity and comes with a 5 year manufacturer’s warranty, giving peace of mind
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£60.00

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With enhanced sensing, multiple installation styles and the option to enable alerts and test via your mobile, the Pro Connected Smart CO detector offers the highest level of protection for you and your family.

As well as our own rigorous testing processes the units are also assessed by the British Standards Institution (BSI) who have approved the unit as Kitemark certified, so you can rest assured knowing you’re protected against CO.

Installation & setup

Get the help and support you need to easily set up and install your FireAngel alarm for instant protection.

Installation guide

Installation guide

Click the icon to find out more about installing your pro connected app

Build a network

Build a network

Click the icon to find out how to build a network of pro connected alarms

Resources

To ensure you install the right alarm for your home, and one that's compliant with your local fire regulations, review our manual and data sheet or get in touch with our customer service team.

Product manual

Product manual

Click the icon to download the product manual

Datasheet

Datasheet

Click the icon to download the product datasheet

Related FAQs

Carbon Monoxide is produced when fuels burn incompletely – this could be from a boiler, gas fire, oven, log burner or a blocked flue or chimney. It can also travel through walls from adjoining properties, so as well as having an alarm next to appliances in your property we would also advise you to have one in living spaces and bedrooms. To help prevent a Carbon Monoxide leak we advise getting your appliances regularly serviced by reputable engineers who are gas safety registered.

When alarms are interlinked they are able to communicate and will alert at the same time if one of the alarms detects danger. In the case of wireless interlink, this communication is in the form of protected radio frequency, which means there’s no need to run cables between the alarms. The FireAngel Pro Connected alarms allow the network to be extended to include devices across your entire home. For example, a network of 7 x smoke alarms, 3 x heat alarms, 3 x carbon monoxide alarms and a Gateway will be completely secure and protect your whole home, and are backwards compatible with the FireAngel Wi‑Safe2 range.

You can also add a Gateway into the network which will allow you to receive updates on the network when you’re away from the home. The Gateway will communicate with the FireAngel Connected App using your home’s internet connection, but if this fails or cuts out the alarms will still protect your home, but you won’t receive a push notification.

When alarms are interlinked they will all mirror the alert of the device which detects the danger or requires attention. When all of the alarms are alerting you can press the central test button on any of the alarms in the system to silence all alarms, except the alarm which has detected danger or needs further investigation.
In a network containing both smoke/kitchen heat alarms and carbon monoxide alarms, the alert style will tell you whether the danger is fire or carbon monoxide related. For smoke/fire detection the system will alarm with three beeps (beep – beep – beep) and if Carbon Monoxide is detected there will be four beeps (beep – beep – beep – beep).
If a Gateway is added to the network you can also check any push notifications or The App dashboard to see which device requires your attention.

 

Install a CO alarm in every room with a fuel-burning appliance such as a boiler, gas fire, or wood-burning stove. Position it on the ceiling or high on a wall, between 1m and 3m from the CO source. For full coverage, fit one in every bedroom and living area too. See our guide on how many carbon monoxide alarms you need for room-by-room advice.

Mains-powered alarms: Yes, these require professional installation by a qualified electrician to ensure they are wired safely to your home’s electrical system.
Battery-powered alarms: These can typically be installed by homeowners following the instructions in the product box.

No, all FireAngel ProConnected Products are not compatible with DrayTek routers. For more information please refer to the data sheet or get in contact.

See all faqs

Extend your protection

Protecting your home and loved ones is easier than ever with our range of smoke, heat, and carbon monoxide alarms. To ensure complete coverage, it’s essential to place the right alarm in the right location. Check out what alarms are right for you on our help to buy quiz.

For even greater peace of mind, consider upgrading to our Pro Connected Range. These smart alarms offer wireless interlinking, meaning if one alarm is triggered, all alarms in your home will sound. Plus, they can be monitored through our FireAngel Connected smartphone app, whether you’re at home or away.

extend your protection

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Reviews from our customers

Five stars review

“I'm an avid user of home assistant and IoT, hence the reasoning for looking at connected devices. The piece of mind that no matter where you are, you'll get an alert if an alarm goes off to me is worth it. It also routinely tests the network and system to ensure all is working as expected. Super easy to install with various sized holes in the plate for drilling, and then just twist and lock the alarm which automatically turns it on.”

Amazon Customer, Originally posted on amazon.com

Five stars review

“Great item if you have the FireAngel connect Pro smoke alarms. Simple to install! Monitors your smoke alarms remotely. Great if you have rental or holiday let. Advises if alarm is triggered, if alarm is removed from housing, if there is a fault, low battery, can run test also.”

Amazon Customer, Originally posted on amazon.com

Five stars review

“Set up and connection to app required a bit of focus, but quite straightforward overall. Love the live monitoring of devices... Also very happy that devices come with built in ten year battery.”

Amazon Customer, Originally posted on amazon.com

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Got a burning question? Get in touch

If you can't find what your looking for on our blogs and looking for further guidance and advice, our UK-based Customer Support team are on hand all week from 8:30am until 5:30pm, they can answer any further queries you may have on our products, solutions or services.