Protect Your Pet From the Silent Killer
Pet Detector is an easy-to-use CO & gas detector that shows you real-time danger levels — so you can protect your pet before it's too late.
- ✓ See Danger at 0 PPM — Not 70 PPM like standard detectors that go silent while your pet is still breathing it
- ✓ Plug & Protect — No ladder, no tools, no electrician. 30 seconds to install.
- ✓ Built for the One Who Can't Leave — Your pet can't open the front door. Pet Detector watches the air so they don't have to.
"I was scrolling late one night when I read about CO misdiagnosis in pets — how they die and it gets written off as 'unexplained illness' because vets don't routinely test for it. I went cold. My cat Margo had been lethargic for weeks the previous winter. My vet called it 'age-related decline.' She's 7. I will never know for certain what happened in that house. I ordered Pet Detector that night. I look at that '0' every morning before I leave for work and exhale. It's the only thing that feels like actually protecting her."— Lauren H., 38 · Austin, TX · Cat Mom · Verified Customer
Don't Let Your Pet Become a Statistic No One Is Even Counting.
Carbon monoxide kills pets every year. We don't know how many — because when it happens, the cause is almost never identified.
The symptoms of CO poisoning in animals — lethargy, reduced appetite, vomiting, weakness, sudden collapse — are clinically indistinguishable from aging, GI illness, and kidney disease. Standard veterinary diagnostics can't catch it: pulse oximetry reads carboxyhemoglobin as normal oxygen. The only definitive test is rarely ordered, because no one thought to look.
So the pet is brought in. Tests come back inconclusive. The owner goes home. The source of the leak keeps leaking.
CO comes from furnaces, water heaters, gas stoves, garages. You can't smell it. You can't see it.
Your pet just becomes, quietly, less themselves — until they aren't there at all.
The detector on your wall says nothing. Because it's working exactly as designed.
Every Breath Your Pet Takes Counts. Standard Detectors Wait. Pet Detector Doesn't.
The Pet Detector
CO & Gas Detector
Pet Detector is a professional-grade detector specifically designed to show you real-time CO and natural gas 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 Pet Detector in your home is one of the most important decisions you can make for your pet.
Because the silent killer doesn't give your pet a warning. Pet Detector does.
Standard detectors are calibrated for adult humans who can feel a headache at 35 PPM and walk outside. They're designed to alarm at 70 PPM — long after a smaller animal with a faster respiration rate has been symptomatic for hours.
Pet Detector alarms at 10 PPM and shows you the actual number every second. The moment something begins to build, you know. While there's still time.
Designed by Firefighters. Built to Save Lives.
Pet Detector was developed with first responders who saw the same tragedy repeat itself — families whose pets were gone while a brand-new detector glowed green on the wall. Firefighters who carried animals out of homes where every safety standard had been met. They knew something was wrong with that standard. So they built something better.
- ✓ UL 2034 Certified — Strictest CO detector standards in North America
- ✓ Professional-Grade Sensors — Same electrochemical technology used by fire departments and industrial safety teams
- ✓ ETL Listed — Independently tested for safety and accuracy
- ✓ Alarms at 10 PPM — Because the firefighters who built this knew 70 PPM was never designed with your pet in mind
Meet the Pet Parents Who Stopped Hoping — and Started Knowing
"I Saw 22 PPM. My Old Detector Never Beeped."
"We had a 'working' detector for four years. Tested it every six months. Green light. Then I got Pet Detector for our two dogs. Second day: 22 PPM where they sleep all day. My old detector? Still glowing green. Still silent. HVAC found a cracked heat exchanger. I don't let myself think about how long they'd been in that."Labrador & Beagle Dad
"My Vet Mentioned It. I Ordered That Night."
"My vet told me standard detectors aren't calibrated for pets — that by the time they alarm, a small animal has already been symptomatic for hours. I ordered Pet Detector that night. Two months later: 14 PPM. Slow stove leak. Milo was home alone all week while I was at work. I still can't think about it too long."Tuxedo Cat Mom
"I Sent One to My Mom's House"
"My mom is 78. Lives alone with her two dogs. Her old detector was nine years old — the sensor was dead but the green light was still glowing. I sent her a Pet Detector 4-Pack. Now when I call her she tells me the screen reading before she tells me how the dogs are sleeping. '0 and 0, sweetheart.' Best three words I've ever heard."Verified Customer
Cheap Detectors Wait. Pet Detector Doesn't.
Real-Time Digital Display
The actual PPM in your home, live, every second. 0 means safe. Any number above 0, you see it immediately.
Alarms at 10 PPM — Not 70
Early warning while there's still time to act, before exposure reaches levels dangerous for small animals.
Dual Sensors, One Unit
Carbon monoxide and natural gas in a single plug-in device. Two invisible threats, one screen.
30-Second Plug-In Install
No tools. No ladder. No electrician. Plug into any standard outlet — working immediately.
Continuous Monitoring
Watches the air every second, all day — especially the hours your pet is home alone and you're not.
Designed by Firefighters
Built by first responders who carried animals out of homes with working detectors — and refused to accept that 70 PPM was good enough.
Protect Your Pet. Get Your Pet Detector Today.
For a limited time — direct-only pricing. Not available on Amazon or eBay.
Your Purchase Is Protected By Our 90-Day "Breathe Easy" Guarantee
Here at Pet Detector, we make sure every pet parent feels what it's actually like to know their pet is safe — not hope, not assume, not trust a green light. Or we refund 100% of their investment.
We're so confident you'll feel the shift from hoping to knowing that we'll bear all the risk.
Some pet parents feel it the first morning — the moment they look at that screen, see a 0, and realize they've been holding their breath every time they left for work. Some take a few days to stop glancing at the old detector out of habit.
Everyone's different. So the best thing you can do is give it a try — and if you don't feel safer, calmer, and finally certain your pet is protected, you have 90 days to claim a full refund. No forms. No questions. No runaround.
Real Pet Parents. Real Numbers. Real Peace of Mind.
"It Caught What My $250 Nest Couldn't"
"Nest Protect in every room. Top of the line. Pet Detector showed 31 PPM in the kitchen first week. The Nest? Green. Silent. Cracked burner seal. My cat Theo is in that kitchen every single day. I don't run the 'what ifs' on that one too long."Persian Cat Mom
"I Checked the Camera Every Day. It Showed Me Nothing."
"I'd open the app on my lunch break and see Rosie lying on the couch. Just napping, I thought. She'd been lethargic for weeks — not eating well, low energy. I almost wrote it off as age. My vet mentioned CO misdiagnosis. I ordered Pet Detector that night. It alarmed at 19 PPM two weeks later. Water heater flue, partially blocked. She was home alone every single day that week. I've cried about it more than once."Cavalier King Charles Mom
"I Lost a Pet Once. I Will Never Wonder Again."
"My dog Max died two years ago from what the vet called 'sudden organ failure.' We never got a clear answer. After reading about CO misdiagnosis — how the symptoms match, how pulse oximetry can't detect it — I've spent time I won't get back thinking about that winter. I have Pet Detector in every room of my house now."Two-Dog Household
"Four Dogs. Four Monitors. Zero Worry."
"After learning that standard detectors alarm at 70 PPM — and that smaller dogs succumb faster than humans under the same exposure — I put a unit on every level of the house. The 0 on that screen every morning is the only thing that actually lets me focus at work."Verified Customer
"26 PPM. Old Detector? You Already Know."
"Living room where our dogs sleep. Four days after installing: 26 PPM. My husband said 'the old detector is still showing green.' Gas company found a loose furnace fitting. Three dogs sleep in that room every night. Pet Detector is the reason they still do."Three-Dog Household
Questions From Pet Parents
Most CO detectors only show a green light — which stays on even when the sensor has expired. They don't alarm until 70 PPM, which is after hours of exposure for a small animal. Pet Detector shows you real-time PPM levels on a digital display, starting at 0, and alarms at 10 PPM. You see the actual number in your home every second. Not a light that implies safety — a reading that proves it.
The honest answer: no one knows how many pets it kills — and that's the real problem. Veterinary researchers describe CO poisoning in pets as having "unknown incidence" because the symptoms (lethargy, vomiting, loss of appetite, weakness) are clinically identical to aging, GI illness, and kidney disease. Standard pulse oximetry cannot detect carboxyhemoglobin. The definitive test is rarely ordered. Pets die. The cause is recorded as something else. We're not here to frighten you. We're here to replace fear with a number on a screen.
So did the pets of every owner who found a problem after installing Pet Detector. CO builds slowly — from a cracked heat exchanger, a blocked furnace flue, a loose gas fitting. It accumulates over days at levels that trigger no alarm and produce symptoms so gradual they read as something else. "She's just getting older." "He's had an off week." The absence of a visible problem is not the same as the presence of actual safety.
No. Pet Detector uses professional-grade electrochemical sensors that distinguish between brief cooking fluctuations and sustained CO or gas accumulation. Normal cooking will not trigger an alarm. If elevated readings do appear during cooking, it's a ventilation issue — and knowing that is useful information.
Both. Pet Detector has dual sensors — one for carbon monoxide, one for natural gas including propane. One unit, two threats, one screen. Most standard detectors from the hardware store only detect CO. Pet Detector catches both, with real-time PPM readings starting at 0.
Prioritize the rooms where your pet spends the most time — especially when home alone. Near furnaces, water heaters, and gas appliances. On every level of the home if possible. The 4-Pack covers most homes completely. The first unit should go wherever your pet sleeps when you're gone.
This is exactly who Pet Detector was designed for. Your pet cannot recognize danger, relocate to fresh air, or call for help. Pet Detector monitors the air continuously — every second, all day — and alarms at 10 PPM, long before exposure reaches levels dangerous for small animals. The goal is that you come home to a 0 every day. And on the day that number changes, you find out while there's still time to act.
Plug it into any standard wall outlet. Working in 30 seconds. No tools, no ladder, no electrician, no batteries, no app required.
You're covered by the 90-Day "Breathe Easy" Guarantee — full refund for any reason, no questions asked. Plus a Lifetime Guarantee: if anything ever goes wrong with the device, we replace it free.
Ships within 24 hours on business days. Arrives within 3–5 business days for most customers.
Two Ways This Ends.
You close this page. Your pet goes home alone tomorrow — and the day after, and every day after that — breathing air you're assuming is safe because a green light says so.
You tell yourself it's probably fine. That it's rare. That it would have happened already if it were going to happen.
You hope.
Or you spend less than the cost of a single vet visit on the device that watches the air when you can't. You see the number. You know — not assume, not hope — what your pet is breathing every hour you're away.
Because your pet cannot open the front door.
They cannot feel the headache and step outside.
They cannot tell you something is wrong.
They trust you with every breath.
"What if it already did — and I never knew why."
Make sure you never have to ask that question.
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