🛡️ 2026 Upgraded 70% OFF 🔔 ALERTSAFE™ 4in1 Safety CO Detector ⚠️ Air Safety Monitor

The Silent Failure Killing Families At Night.

Carbon monoxide is the leading cause of accidental poisoning deaths in the U.S.

Every year, 400+ people die — most in their sleep. Most never see it coming.

Their detector? Still green. Still silent.

No smell. No warning. No second chance.

Just one night… and it’s over.

Introducing: The ALERTSAFE™ CO & Gas Detector

ALERTSAFE is a professional-grade detector specifically designed to show you real-time CO, natural gas, and propane levels starting at 0 PPM.

It's an easy-to-use, accurate device that anyone can install in 30 seconds no ladder, no tools, no electrician.

Keeping a ALERTSAFE in your home is one of the most important decisions you can make for yourself and your family.

Because the silent killer doesn't give warnings. ALERTSAFE does.

Professional-Grade Protection Without The Professional Price

ALERTSAFE™ 4in1 Safety CO Detector uses the same electrochemical sensor technology trusted by HVAC professionals and emergency responders—the kind that costs $200+ in commercial-grade detectors. But we made it accessible for every family. The result? A detector that alerts you at 30+ PPM (hours before traditional detectors).

Professional features, everyday price:

✓ Medical-grade electrochemical sensor – Detects CO as low as 30+ PPM
✓ Triple environmental monitoring – CO, temperature, and humidity
✓ Industrial 10-year lifespan – With daily self-diagnostics
✓ Real-time digital display – Know exactly what you're breathing
✓ Universal compatibility – Works in any outlet, battery backup included
✓ Travel-ready – Compact, portable, TSA-approved

57% 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.

ALERTSAFE™ 4in1 Safety CO Detector 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.

Designed By Firefighters. Built To Save Lives.

ALERTSAFEwas developed with first responders who saw the same tragedy repeat itself — families with "working" detectors who never got the warning they deserved

✓ UL 2034 Certified — Strictest CO detector standards in North America

✓ Professional-Grade Sensors — Same technology used by fire departments

✓ ETL Listed — Independently tested for safety and accuracy

ALERTSAFE isn't just another detector. It's the detector firefighters wish every home had.

Like having a fire station in your hallway — watching the air so you don't have to.

Stories That Started A Movement

⭐⭐⭐⭐⭐ 4.8/5 (8,438 Reviews)

⭐⭐⭐⭐⭐

Mark D., Firefighter, Texas

“As a firefighter with 10 years of experience, I’ve responded to too many CO incidents where the detector was still ‘green’ but never went off. Most basic units only alarm when levels are already dangerous, so I recommend using something like AlertSafe that shows real-time CO levels and alerts early, giving you time to act before it turns life-threatening.”

⭐⭐⭐⭐⭐

Emily R., Colorado

“I went through a carbon monoxide scare I’ll never forget. Our detector was on the wall, green light, everything looked fine, but I woke up feeling dizzy and something wasn’t right. We later found out CO levels were already dangerous. That moment really shook me, because we thought we were protected. After that, I started looking into better options and tested a few myself. That’s why I switched to AlertSafe. It actually shows real-time levels and warns early, not when it’s already too late. I’ll never trust a simple green light again.”

⭐⭐⭐⭐⭐

Daniel K., California

“I’m a dad, and the thought of something happening to my kids while we’re all asleep honestly scares me. We had a detector on the wall, but it just sat there with a green light, no real information, no reassurance. After reading what can actually happen with CO, I realized that wasn’t enough. I switched to AlertSafe because it shows real-time levels and warns early, not when it’s already dangerous. I don’t rely on a green light anymore. I need to know my family is actually protected.”

HOW TO USE ALERTSAFE?

Plug in your AlertSafe and it starts monitoring instantly. Use a short press to run a quick self-test or mute/unmute the alarm. Long press to switch temperature units or flip the screen 180° for better viewing. Tap the button to adjust brightness (3 levels). That’s it—set it once, and it continuously watches the air for you. 

FAQ

Q: Does it detect propane and natural gas, or just carbon monoxide?

A:  ALERTSAFE is a 4-in-1 detector. It monitors carbon monoxide, natural gas, AND propane, plus temperature and humidity. This is a critical distinction. Most cheap detectors from the hardware store only detect CO. If your stove leaks natural gas, your furnace has a propane leak, or your water heater line is compromised, those detectors stay completely silent.  ALERTSAFE catches all three gas threats in real-time, with PPM readings on the display starting at 0. One unit. Complete protection. No gaps.

Q: How many do I need?

A: One per floor + near bedrooms + near gas appliances (furnace, water heater, garage). Most homes need 4. Apartments typically need 2.

Q: My detector is hardwired. Isn't that better?

A: Hardwired means it runs on electricity — but the SENSOR inside still expires after 5-7 years. The green light stays on even when the sensor is dead. Haven plugs in and shows you a real number, so you always know it's working.