10 Best Gas Detectors 2025 in the UK

The FireAngel Carbon Monoxide Alarm and Detector (FA6813) is designed primarily for home use, detecting carbon monoxide (CO) with an advanced electrochemical sensor. This ensures accurate detection of dangerous CO levels. The alarm system is loud, producing 85 dB(A) chirps and a flashing red LED light, making it easily noticeable during a CO event. Additionally, it includes a test button for regular checks and uses replaceable AA batteries, with alerts for low battery levels. The 'Sleep Easy' function allows temporary silencing of these alerts for 8 hours, which can be useful during nighttime disturbances.

This detector is highly portable, compact, and includes a mounting bracket for easy installation, making it suitable for travel and holiday use. The product conforms to relevant safety standards (BS EN 50291-1: 2008 and EN 50291-2: 2019), ensuring reliability and assurance in its performance. However, it is not compliant with new regulations for Scottish homes.

Its durability and environmental suitability are supported by positive customer reviews and its high ranking in DIY & Tools. While the inclusion of batteries is a plus, users must remember to replace them promptly. This CO detector is ideal for anyone looking for a portable yet reliable device to ensure safety from carbon monoxide exposure at home or while traveling.

The FireAngel Carbon Monoxide Detector FA3820 is designed for home and travel use. It features an advanced electrochemical sensor that accurately detects dangerous levels of carbon monoxide and alerts users with a loud 85 dB alarm and flashing red LED light. One of its strong points is the 10-year sealed battery, which ensures long-term operation without the need for battery replacements. The device also has a high sensitivity mode, activating quicker alerts if CO levels are predicted to rise, which is a great safety feature.

Additionally, its alarm memory is useful as it continues to signal prior exposure to CO even if you're not home when it happens. Its small and portable design makes it easy to take along on holidays or for use in rental properties. Plus, it comes with an integrated mounting bracket for simple installation. The alarm is certified and meets high safety standards, adding to its reliability.

However, one possible drawback is that it’s specifically designed for carbon monoxide detection, so it might not be useful for other gas detections. Additionally, while the loud alarm and flashing lights are effective for alerting, they could be overly startling in quiet environments. The product is well-reviewed with a 4.6 out of 5-star rating and is highly ranked in its category. This detector would be ideal for households looking for a reliable, easy-to-install CO detection solution and travelers needing portable safety equipment.

The Kidde 10LLDCO Carbon Monoxide Detector comes in a pack of two and is designed to detect carbon monoxide gas. It features a digital display that shows the current CO levels in parts per million (ppm), ranging from 11 to 999ppm, which is helpful for monitoring air quality in real-time. The detector uses a carbon monoxide sensor and has an audible alarm system, ensuring you are alerted to dangerous CO levels even if you are not actively monitoring the display.

One of its standout features is the 10-year sealed lithium manganese dioxide battery, reducing the need for frequent battery changes and ensuring the detector is operational over a long period. Additionally, it boasts a peak level display feature, showing high CO levels detected while you were away, allowing for better hazard assessment. The unit is lightweight at 140 grams and compact, making it easy to install in various locations.

It is Kitemarked to BS EN 50291-1: 2018 for domestic use and has CE and UKCA approvals, indicating compliance with safety standards. The detector is suitable for a broad range of environments but is particularly recommended for domestic use. Some potential drawbacks include its reliance on battery power only, which might be a concern during prolonged power outages if the battery fails. This CO detector is ideal for homeowners looking for a reliable, long-term solution to monitor carbon monoxide levels.