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Stories That Started A Movement
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Susan T.
We installed TrueDetect near our furnace. At 2 AM it started beeping 45 PPM. Fire department found a cracked heat exchanger. Our old detector? Still silent. The firefighter said if we'd waited for that one, we might not have woken up.
Since then I've become that person who won't shut up about CO detectors. My neighbors get annoyed when I bring it up. I don't care. I just can't wrap my head around risking your family's life over a few bucks.
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James Mitchell, HVAC Technician, Illinois
I'm an HVAC technician with 12 years in the industry. After one bad call, I tested my neighbors' detectors with my professional $400 CO tester. Out of 6 houses, FIVE had detectors that were either dead or wouldn't alarm until you were already dying. I urged each one of them to use the detector I use, which is TrueDetect. It alarms early when you can still get out safely, shows real CO readings, and monitors the same metrics I check on service calls. I highly recommend this one, even over the “advanced” 200$ ones
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Jessica L., California
Our CO detector was installed in 2011. Fourteen years with a green light, and I never questioned it. We had three kids sleeping under that useless piece of plastic every night. I'll drop $80 on takeout without thinking twice, but I was gambling with my kids' lives to save a hundred bucks. I was stupid. If you haven't replaced yours in the last 5-7 years, do it.
Does Your Home Have Hidden CO Risk? (Most UK Homes Do)
Answer these questions:
Do you have an attached garage? Every time you start your car, CO can seep through shared walls—even when the garage door is open.
Is your home older than 15 years? Furnace heat exchangers develop cracks over time. Small cracks leak CO for months before causing complete failure.
Do you use natural gas, propane, or oil heat? Any fuel-burning system produces CO. One blocked vent, one malfunction, one crack—and it's in your air.
Do you have a fireplace or wood stove? Creosote buildup, blocked chimneys, and downdrafts push CO back into your home instead of up and out.
If you answered yes to even ONE of these, you're at risk. If you answered yes to TWO or more, you're in the danger zone.
68% of CO Poisoning Victims Had "Working" Detectors That Never Went Off. Don't Let This Be Your Family.
Traditional CO detectors are designed to only alarm at near-fatal levels (70-150 PPM). By the time they sound, you've already been breathing poison for hours.
Even worse? Most detectors expire after 5-7 years but keep showing a green light. So if your house is older than 7 years you probably have zero protection right now.
This is why 50,000 Americans are hospitalized for CO poisoning every year... despite 90% of homes having detectors.
Furnaces running continuously 24/7
Windows sealed shut
Fireplaces and space heaters in constant use
Snow blocking exhaust vents
Cold causing appliance failures
TrueDetect was designed to solve this exact problem. Instead of waiting until CO reaches dangerous levels, it alerts you at 30+ PPM - giving you hours to evacuate before anyone gets sick. It also monitors temperature and humidity fluctuations (the same metrics HVAC professionals use) to catch furnace problems before CO even starts building up.
Have True Peace Of Mind This Winter
The majority of CO poisoning happens between December and January:
- Furnaces running continuously 24/7
- Windows sealed shut
- Fireplaces and space heaters in constant use
- Snow blocking exhaust vents
- Cold causing appliance failures
This winter, your detector needs to work 100% of the time.
Have True Peace Of Mind This Winter
TrueDetect alerts far earlier, shows real-time PPM, lasts longer, and uses professional sensors. Others alarm late, hide expired sensors, and give false confidence.
Real protection, measurable peace of mind
Common questions about TrueDetect safety and use
Clear answers to help you install and trust your detector confidently
Why is TrueDetect better than a $30 CO alarm?
TrueDetect alerts at 30+ PPM, uses a medical-grade electrochemical sensor, shows real-time PPM, and has a 10-year lifespan. Cheaper units alarm much later and can expire silently.
Will it go off for harmless CO spikes like cooking?
No. Intelligent algorithms distinguish brief harmless spikes from sustained dangerous buildups, so you get alerts only for real threats, not normal household activity.
Where should I place detectors in my home?
Place one within 15 feet of bedrooms, one near your furnace, and one on each floor. Put detectors near garages or fireplaces to catch leaks before they reach living spaces.
Does it work during power outages?
Yes. Built-in battery backup activates automatically so monitoring continues when power fails, which is when furnaces often malfunction.
How loud is the alarm and will it wake my family?
The alarm is rated 85 dB, loud enough to wake deep sleep. It’s designed to get everyone up and out immediately when danger is detected.
30-Day Money-Back Guarantee — TrueDetect Home CO Guard
Try TrueDetect risk-free for 30 days. If you don’t feel safer or it doesn’t meet expectations, return it for a full refund. We built this detector to stop the tragedy of ‘working’ alarms that never alerted, so your family’s safety is guaranteed.