
★★★★★ Rated 4.9 out of 5 from 10,839 verified customer reviews
See danger early. Act before it's too late.
Carbon monoxide has no smell, no colour and no warning. Your smoke detector can't see it, and most CO alarms stay silent until levels are already dangerous. This device shows you live readings the moment something changes, so your family has time to get out.
The detector safety professionals are switching to, replacing traditional smoke alarms.
HVAC technicians and home inspectors see this risk all too often: many families rely on a seemingly functional smoke alarm. However, standard smoke alarms cannot detect gas leaks or carbon monoxide.
This unit monitors all three hazards, displaying rising gas and CO concentration readings instantly starting from 0 PPM, so you get enough time to respond.
Trusted by industry professionals who inspect gas appliances daily
Quickly check connections on furnaces, water heaters and stoves within seconds with this detector.
It shows real numerical readings on the screen, instead of relying only on a simple indicator light.
Find answers to common questions about our products, shipping, returns, and more.
Frequently Asked Questions
How is this different from the smoke detector I already have?
How is this different from the smoke detector I already have?
Your standard smoke alarm only monitors smoke. It cannot detect gas leaks or colourless, odourless carbon monoxide. The only alert it provides is a low-battery chirp, often sounding in the middle of the night.
Even regular carbon monoxide detectors will not trigger until readings hit 70 PPM, and industry standards allow up to 4 hours of exposure at that level. By that point, harmful gas has already been inhaled for hours.
This all-in-one detector tracks smoke, gas and carbon monoxide. It displays live CO readings starting from 0 PPM. You can spot rising hazards before they reach dangerous levels.
Does it keep working if the power goes out?
Does it keep working if the power goes out?
Yes. The unit has a built-in backup battery that automatically charges while plugged into mains power. When power fails, a circuit trips, or you unplug it to move it to another room, it continues monitoring nonstop.
How many do I need and where should I put them?
How many do I need and where should I put them?
- Single Unit: Place near sleeping areas. Carbon monoxide poses the greatest risk at night.
- 2-Pack (Most Popular): One close to bedrooms for overnight protection, and a second in the kitchen or living space near stoves, furnaces or water heaters.
- 3-Pack (Best Value): One for bedroom, kitchen, plus garage or basement. Or two for your home and one for elderly parents, college students or rental apartments.
Placement tip: Mount 4–5 ft above ground for optimal CO detection. Avoid positioning directly facing stove burners, in front of air vents, or behind curtains.
Will it false alarm from cooking, steam or aerosol sprays?
Will it false alarm from cooking, steam or aerosol sprays?
This detector adopts industrial-grade electrochemical and photoelectric sensors with selective gas recognition. It is far less prone to false triggers than traditional ceiling-mounted alarms.
The CO sensor targets carbon monoxide specifically and will not activate from normal cooking steam, bathroom moisture or aerosol sprays.
If you often cook over high heat, avoid installing it directly opposite stove burners.
Can I take it with me?
Can I take it with me?
Yes. Replace the power plug with the included magnetic mount to attach it on fridges, or simply place it inside your bag.
Powered by its internal battery, it works in hotels, vacation rentals, dormitories, campers, RVs, or the home of ageing family members. Bring it anywhere you want extra peace of mind.
How do I know it's actually working?
How do I know it's actually working?
Most detectors only run a speaker check when you press the test button — it does not verify the sensor itself.
You might press the button, hear a beep, and assume everything works fine. However, the internal sensor could already fail completely while the test tone still sounds.
With this detector, there is no guesswork. The screen shows live real-time metrics: 0 PPM carbon monoxide, temperature and humidity.
These readings are direct proof of function. If the numbers adjust following environmental changes, the sensors are operating normally.
Is it loud enough to wake me up?
Is it loud enough to wake me up?
Yes. The alarm tone is designed to rouse you from deep sleep, and a test button lets you verify the sound.
The volume is adjustable. Night mode dims the screen light, so it can double as a gentle nightlight in children’s rooms or hallways without disturbing sleep.