Carbon Monoxide
7 myths about CO that put your family at risk
The “facts” most parents believe about carbon monoxide — and what’s actually true.
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We’ve rebranded: Airguard is now Sentivo Detector™
See CO From 0 PPM
4 Sensors, One Device
30-Second Install
Live PPM Display
Detects CO & Gas
30-Second Install
Temp & Humidity
Battery Backup
Lifetime Warranty
Sentivo Detector™ is the #1 Best Seller in CO Monitors on Facebook
See the air your family actually breathes.
The #1 must-have 4-in-1 air monitor
Most detectors only scream once it’s already an emergency. Sentivo Detector™ shows you the real number — live, from zero — so you can act while a problem is still just a problem. One device watching the air your family actually breathes.
See CO From 0 PPM
A live number on a screen — not a yes/no light that only sounds once it’s already dangerous. Watch the level the moment it starts to rise.
4 Sensors, One Device
Carbon monoxide, natural gas, humidity and temperature — all on one screen. Most detectors only catch a single threat.
30-Second Install
Plugs into any US outlet. No ladder, no tools, no electrician, no dead batteries in the night.
Get Protected Today! →
Try it risk-free with our 100-Night Guarantee
Meet Sentivo Detector™
The detector with a display.
Plug it in, glance at the number, and know at a glance that your family is safe — or act fast if they’re not.
- Live CO reading from 0 PPM, updated in real time
- Catches natural gas and propane, not just CO
- The live number is your daily proof the sensor works
Makers of the Sentivo Detector™ 4-in-1
A brand families trust.
We don’t just sell detectors — we give parents the one thing a green light never could: the truth about the air in their home.
Built for American homes
Calibrated for US outlets and homes — designed for the way American families actually live.
Developed with safety experts
Shaped alongside firefighters and HVAC pros who’ve seen what a silent alarm costs.
Serving families like yours
Homes across America now see the real number every day — not a light that hopes for the best.
100-Night Guarantee
Not sleeping easier? Send it back for a full refund — we cover return shipping.
Quality Assured
Professional-grade electrochemical sensing, quality-checked on every unit before it ships.
Fast, Free Shipping
Free US shipping on every order — most arrive in as little as 3 days.
Secure Checkout
Simple, encrypted checkout — a smooth, worry-free path to protecting your home.
Questions
Good to know
How is this different from the detector I already own? +
A standard alarm stays silent until CO hits around 70 PPM — and can legally wait up to 4 hours before sounding. Sentivo Detector™ shows the live number from 0, so you see a problem building while it’s still just a problem.
How many do I need? +
One per floor, plus one near every sleeping area and one near your main gas appliance. A typical 2-story home with a basement needs about four; apartments often do fine with two.
Will it false-alarm when I cook? +
No. It reads carbon monoxide and gas — not smoke or steam — so searing a steak or a steamy shower won’t set it off.
What if it doesn’t work for me? +
Try it for 100 nights. If you’re not completely happy, send it back for a full refund — we cover return shipping. Every Sentivo Detector™ is also covered by a lifetime warranty.
Is Sentivo Detector™ the same as Airguard? +
Yes — Sentivo Detector™ is simply the new name for the product you knew as Airguard. Same product, same quality, same team behind it. As we grew, other sellers began copying our product and trading on the Airguard name, which created confusion for customers trying to find the real thing. So we’ve brought everything under Sentivo Detector™ — a name that’s fully our own and protects you from imitations. You may still see “Airguard” on some packaging or older materials during the transition; rest assured it’s the exact same product, straight from us.
The Air Safety Guide
Learn what your alarm won’t tell you
Home Safety
Where to place a CO detector in every home
One per floor, one outside every bedroom — here’s the layout that actually keeps you safe.
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Carbon Monoxide
Why CO isn’t just a winter problem
Generators, garages and water heaters make carbon monoxide a year-round risk.
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