£41.99

Fireangel FireAngel FA3820 10 Year Sealed Battery Alarm Carbon Monoxide, Clear & ST-750T Thermoptek Smoke Alarm

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£42 today · usual range £0–£0 · best ever £37

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Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 625 days • 625 data points (No recent data available)

Historical
Generating forecast...
£56.10 £35.22 £39.78 £44.33 £48.89 £53.44 £58.00 02 June 2024 05 November 2024 10 April 2025 13 September 2025 16 February 2026

Price Distribution

Price distribution over 625 days • 5 price ranges

Days at Price
Current Price
64 days 138 days · current 139 days 157 days 127 days 0 39 79 118 157 £37-41 £41-45 £45-49 £49-52 £52-56 Days at Price

Price Analysis

Most common range: £49-52 (157 days, 25.1%)

Price range: £37 - £56

Price levels: 5 price ranges over 625 days

Description

FireAngel FA3820 10 Year Sealed Battery Alarm Carbon Monoxide, Clear The Fireangel FA3820 is a 10 year Carbon Monoxide Alarm that's supplied with a sealed, tamper-proof battery. The advanced electrochemical sensor has been designed to accurately measure low levels of carbon monoxide within your home. The unit has been designed to either be wall mounted, using the two small screws provided, or left portable to be positioned where required. When left portable you're able to take away with you on holiday, ensuring you're protected at all times. The test button on the FireAngel FA3820 carbon monoxide detector has been designed to be easily located and pressed to make testing simple. The FA3820 detector is suitable for private and rented homes in England, Wales, Scotland and Ireland. As the battery is sealed within the unit it is compliant with the Scottish Fire & CO laws from February 2022. Carbon Monoxide is an incredibly poisonous gas which is emitted when fuel burning appliances burn incompletely. Carbon monoxide cannot be smelt, tasted or seen, and can be deadly - the only way to be alerted to CO is with an audible CO alarm. Common sources of CO include: Oil and gas boilers Portable generators Oil or solid fuel cookers Gas or paraffin heaters Barbecues Clogged chimneys Wood or gas fireplaces Cigarette smoke Gas appliances Any fossil fuel-burning appliance FireAngel are proud to support the carbon monoxide awareness campaign - Project SHOUT. FireAngel ST-750T Thermoptek Smoke Alarm The Fireangel ST-750T is a 10 years sealed battery powered alarm equipped with the thermoptek muliti-sensor. The alarm responds twice as fast as a normal optical smoke alarm. The alarm's thermoptek sensor combines the optical sensing technology with a thermal enhancement to detect both fast flaming and slow smouldering fires. It constantly monitors for temperature change and if a sudden rise in temperature is detected the alarm sensitivity is increased. This smoke sensor makes it the technology of choice for the UK's fire and rescue service.

Key Features

Product 1: Advanced electrochemical sensor detects dangerous levels of Carbon Monoxide ( CO ) in your home and alerts you with a clear, loud alarm

Product 1: As well as being calibrated and rigorously tested in-house the alarm has been third party approved through the British Standards Institute (BSI) and is Kitemark certified

Product 1: The unit 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

Product 1: The device offers maximum protection for homes & rented properties as it is supplied with a sealed, tamper-proof battery which will last the lifetime of the alarm

Product 2: Thermoptek multi-sensor rapidly detects fast flaming and slow smouldering fires

Product 2: Smart silence - silence your smoke alarm by momentarily pressing the test button, ideal for nuisance alarms

Product 2: Toast proof - less prone to nuisance alarms from cooking fumes

Product 2: Designed to meet the specifications of the UK's fire and rescue service

Product Specifications

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