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 FireAngel SCB10-R is a combined smoke and carbon monoxide detector designed for home use, providing dual protection against invisible CO gas dangers and slow-burning fires. It uses advanced electrochemical sensors for CO detection and optical sensors for smoke, aiming to reduce false alarms by accurately detecting thick white smoke. The alarm produces distinct sounds and visual signals for smoke and CO, helping you quickly understand the type of hazard.

One of its biggest advantages is a long-lasting 10-year sealed lithium battery, which means you won’t have to worry about frequent battery changes during its lifetime. It’s also compact and lightweight, making it easy to install on walls or ceilings near sleeping areas, as recommended. The device is certified to recognized safety standards, giving added peace of mind about its reliability. The alarm’s sound level is 85 dB, which should be loud enough for most homes but could be less effective in very noisy environments. Also, it’s battery-powered only, so there’s no option for hardwiring, which some users prefer for extra security. While it’s well suited for typical home environments, it’s not clearly rated for harsher conditions like extreme temperatures or high humidity.

This detector offers a straightforward, low-maintenance solution for basic home safety against smoke and carbon monoxide, making it ideal if you want reliable protection without fussing over battery changes or complicated installation.