CO08-2Pack Replaceable Battery Carbon Monoxide Alarm | SGS Certified

Protect your home from the silent killer with the CO08 carbon monoxide detector. SGS certified & EN 50291 compliant. Easy replaceable batteries. 

Sale price £28.99 GBP -27% Regular price £39.39 GBP
Regular price £28.99 GBP

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CO08-2Pack Replaceable Battery Carbon Monoxide Alarm | SGS Certified
Sale price £28.99 GBP Regular price £39.39 GBP
Regular price £28.99 GBP

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Change the Battery, Keep the Alarm

From the
"Silent Killer".

The CO08 doesn't wait for danger to become dramatic. At a steady low level, it warns gently - one soft beep every three minutes. That early whisper gave expectant mother, six months pregnant, enough time to open every window long before any alarm would ever need to scream.

LCD Digital Display
Replaceable Dattery
Flexible Installation
AeroSense Smart Smoke Detector floating in dark minimalist environment with blue ambient lighting

Whole

Home Range

Status

Connected

Engineered for Peace of Mind

Advanced sensors meet intuitive design. Every detail crafted for maximum safety and minimal intrusion.

Advanced Sensor Tech

High-stability electrochemical sensor captures subtle CO spikes instantly while avoiding annoying false alarms.

Close up of AI microchip inside smoke detector
Smartphone app interface showing safe home status

Live PPM Screen

Bright backlit LCD screen displays real-time CO concentration data so you are never left guessing.

Low-Level Pre-Alarm

Flags ≥20 ppm sustained >30 min with a gentle 3-min beep - early warning for the vulnerable.

Piercing 85dB Siren

A powerful, repetitive horn guarantees to wake up even the heaviest sleepers during midnight emergencies..

Carbon monoxide detector installation mobile
Carbon monoxide detector installation mobile
Carbon monoxide detector installation mobile
Carbon monoxide detector installation mobile
Carbon monoxide detector installation mobile
Historical photo of the original small workshop in Germany where XINDUM was founded
Law / Standard

UK equivalent
Complied standard

Historical photo of the original small workshop in Germany where XINDUM was founded Historical photo of the original small workshop in Germany where XINDUM was founded Historical photo of the original small workshop in Germany where XINDUM was founded Historical photo of the original small workshop in Germany where XINDUM was founded

⚖️Is your rental legally compliant?

Since the Smoke and Carbon Monoxide Alarm Regulations 2022, landlords in England must fit a CO alarm in any room with a combustion appliance, and replace it if it fails. Non-compliance can invalidate insurance and licensing. The CO08 makes compliance effortless.

🏴󠁧󠁢󠁥󠁮󠁧󠁿 England - Rentals: CO alarm in every room with a combustion appliance (Oct 2022)

🏴󠁧󠁢󠁷󠁬󠁳󠁿 Wales - Rentals: CO alarm required where fuel is burnt (Dec 2022)

🏴󠁧󠁢󠁳󠁣󠁴󠁿 Scotland - CO alarm in rooms with appliances (interlink rules apply to smoke/heat)

🏴󠁧󠁢󠁳󠁣󠁴󠁿 Standard - EN 50291-1 certified by SGS for EU/UK use

Technical Specifications

With a LCD digital display Carbon Monoxide Alarm · Model CO08

CO sensor Electrochemical sensors
Alarm Volume >85 dB(A) at 3 meters
Display range 10–999 PPM
CO sensitivity >50ppm 60–90min; >100ppm 10–40min; >300ppm <3min
Low-battery threshold >20ppm >30 min
Complied Standard EN50291-1:2018
Power supply DC 1.5V ×2, AA alkaline (replaceable)
Battery life ≈1 year
Low-battery threshold 2.6 ± 0.1 V
Current (standby / alarm) <50 µA / <50 mA
Operating temperature 0°C to 40°C
Humidity range 15% to 95% RH (non-condensing)
Support

Frequently Asked Questions

Everything you need to know about your CO detector. Can't find the answer? Contact our support team.

Where is the best place to install my carbon monoxide alarm?

For optimal protection, install CO alarms on every level of your home, especially near sleeping areas. Since carbon monoxide mixes evenly with air, you can mount it on a wall at eye level or place it on a shelf. Avoid installing directly above fuel-burning appliances, in extremely humid areas like bathrooms, or near windows/doors with heavy drafts. We recommend at least one alarm within 3 meters of every bedroom door.

How long does the battery last and is it replaceable?

The CO08 comes with a sealed 1500mAh lithium battery designed to last up to 10 years under normal operating conditions. The battery is built-in and not user-replaceable, which prevents tampering and ensures consistent power delivery. When the battery reaches end-of-life, the unit will emit a distinct chirp every 60 seconds to alert you that it's time to replace the entire detector. The 10-year lifespan means you won't need to worry about annual battery changes.

What should I do if the alarm goes off?

If the alarm sounds (4 loud beeps repeating every 5 seconds), remain calm and immediately move everyone to fresh air outdoors or near an open window/door. Call your local emergency services or fire department from a safe location. Do not re-enter the premises until emergency responders have given clearance, the area has been ventilated, and the source of CO has been identified and fixed. A low-level warning (single soft beep every 3 minutes) means elevated but not yet dangerous levels — ventilate immediately and inspect potential sources like furnaces, water heaters, or generators.

Do I need a CO alarm if I don't have gas appliances?

Yes, absolutely. Carbon monoxide can be produced by any fuel-burning source, not just natural gas appliances. This includes oil or kerosene heaters, wood-burning fireplaces and stoves, charcoal grills, gas-powered generators, vehicle exhaust from attached garages, and even blocked chimneys. CO can also seep into your home from neighboring properties. For complete home safety, we recommend CO protection regardless of your primary heating source. Many fire safety codes now require CO alarms in all residential properties.

Why does the detector show a reading even when I don't smell anything?

Carbon monoxide is completely odorless, colorless, and tasteless — that's why it's called "the silent killer." You cannot see, smell, or taste it, which makes electronic detection absolutely essential. The LCD display shows real-time PPM (parts per million) readings even at low levels that wouldn't trigger an alarm but may indicate a developing problem. Low-level readings (under 30 PPM) can come from normal activities like cooking with gas briefly, but persistent readings above 10 PPM when no sources are active should be investigated.

Will this alarm interconnect with other smoke or CO detectors?

The CO08 is a standalone battery-operated unit and does not support hardwired interconnectivity. However, this makes installation extremely simple with no electrician required — you can mount it in minutes using the included adhesive strip or screws. For whole-home coverage, we recommend installing one unit on every level and near each sleeping area. The 85dB alarm is loud enough to be heard through closed doors in most homes, and the sealed 10-year battery ensures every unit stays powered continuously without interconnection dependency.

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