Safeliveo CO03 Carbon Monoxide Detector with Digital Display

Detector: The Safeliveo CO03 is a standalone, battery-powered carbon monoxide alarm with a digital CO display and replaceable AA batteries. Its listed features include a 10-year sensor life, low-level warning and peak-value memory, with both free-standing and wall-mounted placement described.

At a glance

Digital display shows CO readings, with a stated minimum reading of 10 ppm.
The listing claims a 10-year electrochemical sensor life and includes a CO peak-value memory feature.
The alarm uses replaceable AA batteries. The listing states battery life of 1 years.
Standby LED indication can be activated or deactivated using the Test/Mute button.
A low-level warning is specified for 20 ppm sustained for 35 minutes.

Price

£12.71Save 15%

Reference price: ~~£14.99~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

A digital numerical display makes the reported CO level visible without relying on the audible alarm alone.
Replaceable batteries and supplied mounting screws support battery replacement and wall installation.
Compact listed dimensions and free-standing placement allow use without wall mounting.

Technical specifications

18 specifications

Identity
Brand	Safeliveo
Model	CO03
Style	Standalone
Colour	White

Power and battery
Power configuration	Battery Powered
Battery type and quantity	2 × AA alkaline batteries
Claimed battery life	1 years

Detection and alerts
Sensor type	electrochemical sensor
Claimed sensor life	10-year lifespan
Display minimum reading	10 ppm
Low-level warning condition	20 ppm and persists for 35 minutes
Listed detection range	20 to 40 square meters
Audible alarm	exceeding 85dB
Compliance claim	BS EN 50291-1: 2018

Dimensions and installation
Dimensions	60 × 105 × 32.7 mm
Weight listed	120 Grams
Placement	free standing on any surface, or can be wall mounted with the included screws

Other features
Standby indicator	flashes a green LED once every 60 seconds while in standby mode

What to know before buying

The listing claims compliance with BS EN 50291-1: 2018 and describes an alarm above 85dB. These are manufacturer claims, not independently verified here. The stated coverage range and portability wording do not establish suitability for every room or travel setup.

What’s in the box

Included

1 × CO detector
1 × screw set
User manual
2 × AA alkaline batteries

Who is it for?

A good fit for

Buyers wanting a standalone CO alarm with a visible numerical reading as well as an audible alert.
Households preferring replaceable AA batteries and a choice of free-standing or wall-mounted placement.
People who want the listing's stated low-level warning and CO peak-value memory features.

Less suited to

Buyers seeking a connected or interconnected alarm system, since the listing describes a standalone unit.
Buyers who require independently verified certification or performance evidence before choosing an alarm.

Safeliveo CO03 Carbon Monoxide Detector with Digital Display · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.7 / 5 · 770 ratings

5 stars80%80%
4 stars15%15%
3 stars4%4%
2 stars0%0%
1 star1%1%

Customer feedback describes the detector as compact and easy to set up, with customers appreciating its numerical CO display and loud alarm. These reported impressions are relevant to a standalone unit intended to show readings and alert locally. The feedback summary also praises its perceived effectiveness and value, but aggregate ratings and reported impressions do not independently establish detection accuracy or safety performance.