Know What’s Happening—Without Guessing.
HomeHalo 6-in-1 Home Safety Monitor
See Which Condition Needs Attention
Monitor Smoke, CO, Methane & Butane
Check Temperature & Humidity at a Glance
Free Shipping on ALL orders
23,000+ Happy Customers
I bought it after realizing our old CO alarm didn’t monitor natural gas. Seeing the display at night gives me real peace of mind.
Feels more safe
I wanted something that showed me more than a green light. The screen is clear, setup was simple and I like being able to check the room at a glance. It gives me one less thing to wonder about at night.
We Love it
We use propane in our camper, so this went straight into our travel setup. I like that it plugs in but still has backup power. The temperature and humidity readings are useful on the road too.
Peace of mind
I started with one and realized I wanted coverage in more than one area. The multi-pack made sense for our two-story home. Everything was easy to set up.”
Filled the Gap
I assumed our CO alarm also watched for natural gas until I checked. This helped us add another layer near our gas appliances without a complicated installation. The separate indicators make it easy to understand.
Invisible Risks Are More Common Than You Think.
Invisible Risks Are More Common Than You Think.
Homes Use Natural Gas
About 61% of U.S. households used natural gas in 2020, according to the U.S. Energy Information Administration.
Annual CO Deaths
More than 400 Americans die each year from unintentional, non-fire-related carbon monoxide poisoning, according to the CDC.
Core Hazards Monitored
Carbon monoxide, combustible gas and smoke are different dangers that require separately intended sensing.
Different Dangers Need Different Sensors.
Smoke particles, carbon monoxide and combustible gases are not the same threat. A single-purpose alarm may watch for only one, which is why separate sensing and clear status indicators matter.
Try it Risk-Free
60-Day Money Back Guarantee
Try it in your home for 60 days, completely risk-free. If it doesn’t give you the added peace of mind you expected, return it for a full refund.
Know What It’s Watching. Sleep With Greater Peace of Mind.
A clear display shows CO concentration, temperature, humidity and hazard status without making you interpret a single blinking light. Audible and visual alerts help everyone in the household recognize when something needs attention.
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Clear Color Status Display
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Separate Hazard Indicators
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Rechargeable Backup Battery
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Rotating Screen Orientation
Frequently Asked Questions
Plug it into a suitable indoor outlet, allow the warm-up cycle to finish and follow the included placement instructions. Test the sound, display and indicators with the built-in test button before relying on it for monitoring.
The monitor is designed for normal indoor household use, but it should be kept dry, unobstructed and out of reach of children and pets. Never allow anyone to handle the unit during an alarm or tamper with its vents or power connection.
The display begins reporting after startup and the combustible-gas sensor completes its warm-up period. Alarm timing depends on the hazard, concentration and verified thresholds listed in the product manual.
It monitors carbon monoxide, combustible gas and smoke status while also displaying temperature and humidity. It does not measure carbon dioxide (CO₂), and it should not replace any alarms required by local law or building code.
You may return your order within 30 days of delivery under our posted return policy. If a unit appears damaged, defective or gives an unexplained alarm, stop using it and contact support immediately rather than waiting for the return window.