Invisible. Odorless. Leading Cause of Lung Cancer
Home Continuous Radon Monitor
Home Continuous Radon Monitor
Reads your air every hour, not every few years
Alerts you before it becomes a health risk
Only detector that separates radon from thoron
Guards your kids' room all night
Catches the winter spike a summer test never saw
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WARNING: Low Stock Notice
This product sold out 12 times last year. We encourage you to take advantage of the limited sale and buy now.
P.S: Vorenax is ONLY available here, don't buy fakes on Amazon/eBay
"Almost didn't buy it, the cheap Amazon sensor said we were fine, then Vorenax read 8.4 in the kids' room the first night and we had a mitigation system in within the week. I came back and bought two more for the other floors, because there's nothing I wouldn't spend to know my family's safe."
Why Vorenax over the other radon monitors out there?
Why Vorenax over the other radon monitors out there?
The Wi-Fi monitors like Airthings and RadonEye put your number behind an app and a login, and the moment the servers change or the subscription lapses, your history goes with it. The cheaper Amazon sensors are worse, because they cannot tell radon from thoron and hand you a number that means very little. Vorenax separates the two, alarms in the room, keeps 504 days of history on the device itself, and never asks you to sign in to see whether your family is safe.
Why is this $200 when a test kit is $30 and some detectors are $60?
Why is this $200 when a test kit is $30 and some detectors are $60?
A kit gives you one number from a three-day window and then it is finished, and roughly 70% of radon-related lung cancer deaths happen in homes that passed that kind of test. The $60 sensors run continuously but cannot isolate the isotope that actually harms you, so you are watching a number you cannot trust. Vorenax gives you a long-term average that gets more accurate every week and an alarm that goes off in the room, and set against a mitigation quote or a diagnosis fifteen years from now that nobody links back to the basement, it is the smallest number in the conversation.
We already tested when we bought the house. Why do we need this?
We already tested when we bought the house. Why do we need this?
That test covered two or three days, possibly years ago. Radon levels swing by the hour and by the season, and the EPA recommends retesting every two years and after any renovation. About 7 in 10 radon lung cancer deaths happen in homes that measured under the action level.
What happens if the number comes back high?
What happens if the number comes back high?
It's fixable, and it's routine. A certified contractor runs a sealed pipe from under your foundation to a small fan that vents above the roof, usually in a single day, typically $1,200 to $2,500. Then you get to watch the number drop on your own screen and confirm it stays down every winter after.
My neighbor tested fine. Doesn't that mean we're fine?
My neighbor tested fine. Doesn't that mean we're fine?
No. The EPA is explicit that two houses on the same street can differ radically, because radon entry depends on the geology under your specific foundation and the cracks in your specific slab.
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Something in your home kills more Americans every year than house fires, drownings, and carbon monoxide combined. Nobody is required to warn you about it.
Not the builder. Not the seller. Not the inspector. Radon has no color, no smell, and no symptoms, and it collects in the lowest rooms of the house, exactly where children play and sleep. Vorenax puts the real number on your shelf and alarms the moment it climbs.
- First reading within hours, not weeks. A mail-in kit makes you wait three days plus a lab. Vorenax shows the level the same night.
- Alarms at the EPA action level. A number in a drawer cannot wake you up.
- Still watching in January. The gas never stops, so neither does the monitor. 504 days of history, on the device.
The EPA says fix your home at 4.0. The EPA also says there is no known safe level. Most families have never seen this number for their own house.
One-time purchase, no subscription. Bundles available: buy 1 get 1 at 50% off, or buy 2 get 1 free. Less than a single mitigation estimate.
Add to cart21,000 Americans a year. No cough. No headache. No warning of any kind.
There is uranium in ordinary soil across most of the country. As it decays it produces radon gas, continuously, since long before your house was built. In the open it disperses. Under a foundation it does not. It finds the cracks and comes up into the rooms where people breathe the most hours.
The EPA calls it the second leading cause of lung cancer behind cigarettes. Among people who never smoked, it is number one. About 1 in 15 American homes is high enough that the EPA says fix it — new or old, sealed or drafty, with or without basements. You cannot tell by looking.
What makes radon worse than any other hazard is that it gives you nothing. Fire brings smoke. Carbon monoxide brings a splitting headache. Natural gas has an odorant added so you notice. Radon has no smell at 4 and none at 40 — the damage builds silently for years, then arrives as a diagnosis nobody traces back to the house.
The EPA's own risk table. Read the row for your house.
These are the EPA's modeled lifetime lung cancer deaths per 1,000 people who never smoked, at a given long-term radon level. The action line is 4.0. Notice that the table does not stop there.
Swipe to see the full table →
| Long-term level | Lifetime lung cancer deaths per 1,000 never-smokers | Comparable risk (EPA) |
|---|---|---|
| 20 pCi/L | About 36 | 35 times the risk of drowning |
| 10 pCi/L | About 18 | 20 times the risk of dying in a home fire |
| 8 pCi/L | About 15 | 4 times the risk of dying in a fall |
| 4 pCi/L | About 7 | EPA action level. The risk of dying in a car crash. |
| 2 pCi/L | About 4 | The risk of dying from poison |
| 1.3 pCi/L | About 2 | Average indoor level |
"Why am I facing lung cancer when I never smoked a day in my life?"
That is the question these men and women asked their doctors. Active, never smoked, no family history. The answer, when anyone thought to look, was the house. A finished basement where the kids played. A number never once measured in twenty years of living there.
"Cancer respects no boundaries, but radon exposure can be prevented. I wish I had known sooner."
That last sentence is the one you hear over and over in this community. Not "I wish I had done more." Just "I wish I had known." Vorenax exists so that nobody in your house ever has to say it.
Know your number
A man set off the radiation alarms walking into a nuclear plant. The radiation was coming from his house.
December 1984. A construction engineer named Stanley Watras tripped the radiation monitors at the Limerick plant in Pennsylvania on his way in to work. The plant had no fuel loaded yet, so it could not have come from the site. Investigators followed him home. His house measured roughly 2,700 pCi/L, about 675 times the EPA action level. His family evacuated.
That one event created the entire modern radon program. Forty years later it still works the same way: a cardboard envelope, three days on a shelf, a lab, a number in your inbox, and the kit goes in a drawer. Every other invisible danger in your house got a detector. Radon got a test.
Your house is a pump, and the pump never stops.
Nothing broke. There is no leak and no malfunction. Warm air rises and escapes through the upper floors of every house, which leaves low pressure at the foundation. That low pressure reaches into the soil and draws radon up through every crack and joint in the slab. Your house does not passively hold radon. It actively pulls it in, all day, every day, hardest on cold still nights when the furnace is running and the windows are shut.
The pull is never constant. It shifts with weather, wind, pressure, and every HVAC cycle, which is why your basement level is not a fixed fact about the house. It moves by the hour, the season, and the room. One homeowner put it plainly: "Some rooms are worse than others. One of my kids' bedrooms ended up being the worst."
A test kit measures the pump for three days and then stops forever. A monitor watches the pump.
If you tested when you bought the house, here is what that test is worth tonight.
You did what you were told to do, and the test was not wrong. It was just over the moment it was taken. In a study of 480 homes, a single two-day measurement predicted the true annual level only within a factor of about 2.5. Airthings, the largest brand in the category, says levels can move substantially within 48 hours.
About 70% of radon lung cancer deaths occur in homes that measured under the action level. Your test was true the day it was taken. Your house has been doing something else ever since.
A test kit is a photograph.
Three days, one number, mailed to a lab, filed away. It describes a window you do not remember, under conditions you may not have controlled.
Your family lives in a movie.
You would never install a security camera that takes one picture every eight years. Vorenax is still measuring in January, when a July kit stopped months ago.
The detector radon should have had all along.
Vorenax counts individual alpha decay events as they happen and reports the level continuously, with audible and visual alarms and 504 days of history on the device. No app, no account, no Wi-Fi, no subscription. The number lives on the screen, in the room, for the life of the house.
- Continuous reading in pCi/L or Bq/m³ with hourly updates and a long-term average that gets more reliable the longer it runs.
- Alarm at 4.0, audible and visual, adjustable, so a rising level is impossible to ignore.
- Rechargeable and portable. Basement this month, nursery next month. Levels differ room to room.
- Temperature and humidity on screen so you can see why the number moved.
- Verifies a mitigation fan is still working. Fans fail silently. Turn it off for a day and watch what happens.
Spec proof, because you are going to check.
This market is full of engineers and inspectors, and we would rather you verify the numbers than take our word. Every figure here ships in the box with a calibration record.
Not 24 hours. Not seven days. Not three weeks and a lab fee.
Alpha-pulse counting, the same measurement principle as professional continuous monitors.
Stored on the device. Scroll back through two heating seasons. Hand a real record to a buyer at resale.
Reads radon and thoron separately. Thoron lasts 56 seconds, concentrates at floor level, and most consumer detectors either count it as radon or miss it entirely.
Draws from a larger volume of air so the reading reflects the room, not the six inches around a sensor, and the uncertainty collapses in hours instead of weeks.
No app, no account, no cloud, no monthly fee, no lab fee. Competitor smart monitors put your number behind a login. Yours lives on the shelf.
What you actually get for the money.
Every option here produces a number. Only one of them is still producing it next January, sounds an alarm, and never asks you to log in.
Swipe to compare →
| Vorenax$199.99 once, no fees | Mail-in kit$25–$40 per test | Budget sensor$60–$90 | Wi-Fi monitor$150–$330 | |
|---|---|---|---|---|
| Still measuring next winter | Yes | No | Yes | Yes |
| Alarms in the room | Yes | No | Some | Phone only |
| No app, account or Wi-Fi | Yes | Lab fee | Yes | App required |
| Separates radon from thoron | Yes | No | No | No |
| Long-term history | 504 days | One number | Limited | Cloud only |
| Verifies a mitigation fan | Yes | No | Yes | Yes |
| Guarantee | 60 days | None | 30 days | 30 days |
Competitor characteristics are category-typical and must be verified against current listings before publish.
homes that stopped guessing. Every monitor we ship is one more house where the number is known instead of assumed. Our goal is simple and we say it out loud: nobody in a Vorenax home ever says "I wish I had known sooner."
The number, then what they did about it.
Every review below is from a paying customer and has been verified.
"I had been getting respiratory issues and suspected the house."
Ordered Vorenax and it read over 14 in the finished basement where my office is. Called a mitigation company the next day. Within the week it showed 0.5 to 1.5. I would not have known any of it without the number.
"I turned my ten-year-old radon fan off to see if it still mattered."
Ran Vorenax for a baseline, then switched the fan off. In 36 hours the reading spiked past the action level. Turned the fan back on and watched it come back down. Ten years of assuming, answered in a day and a half.
"We passed the inspection test in 2019."
It came back 2.1 so we filed it and moved in. Put Vorenax in my daughter's room in January mostly to prove my husband wrong. It read 7.8 the first night. Same house, same room. I keep thinking about the four winters in between.
"The bedroom over the garage was worse than the basement."
Nobody tells you that. I would have tested the basement with a kit and called it done. Moved Vorenax through every room over a month and the one place I never would have checked was the highest.
"Put my mind at ease about the kids playing downstairs."
Set it up in the unfinished basement where the kids play. It watches around the clock and the alarm is loud enough to hear upstairs. It went off once during a week of rain and we kept the windows cracked until it settled.
"I am an engineer and I was skeptical."
Ran it beside a RadonEye for a month. Tracked within a few tenths the whole time, and it did not need an app or an account to tell me anything. I like that the number is on the device and not on a server somewhere.
Run it for 60 days. If you do not know more about your home than you did before, send it back.
Nobody in this category offers a real guarantee, so we decided to. Put Vorenax in the lowest lived-in room, let it run through two months of real weather, and look at the history. If you are not more certain about what your family is breathing, return it for a full refund. You cover return shipping. That is the whole policy.
Expect the number to move. That is not a broken sensor. That is the pump.
If the number is high, it is fixable. Knowing sooner is better than knowing later.
Most families never look because they fear what looking will cost. So here is the honest picture. Mitigation is routine: a licensed installer runs a sealed pipe from under the slab to a fan that vents above the roof, usually in a single day, typically $1,200 to $2,500. Then comes the part a kit can never give you. You watch the number fall, and keep watching every winter after.
Place it
Charge it, set it in the lowest lived-in room, read the screen. First reading within hours.
Watch it
Let it run through weather and seasons. Move it room to room. The long-term average is the number that matters.
Act on it
If the average is at or above 4.0, call a certified mitigator. Then watch Vorenax prove the fix worked.
Questions homeowners ask.
I already tested when I bought the house and it passed. Why would I need this?
Your test told you about the two or three days it ran. Levels swing by season and hour, and the EPA recommends retesting every two years. About 70% of radon lung cancer deaths occur in homes that measured under the action level. Your test was true that day. Vorenax tells you about today.
My neighbor tested fine. Are we not the same?
The EPA states that levels vary greatly house to house, even next door, because entry depends on the geology, foundation, and pressure pathways under your specific slab.
My house is new. Is this really a concern?
The EPA says new, old, sealed, and drafty homes can all be elevated. You cannot tell by looking at the house, which is exactly why a measurement exists.
Nobody in my family feels sick. Does that mean we are fine?
No, and that is the entire danger. Radon produces no symptoms at any concentration. The absence of symptoms tells you nothing about the level.
How do I know the reading is accurate?
Vorenax counts alpha decay events directly, the same principle professional monitors use, and ships with a stated accuracy tolerance and calibration record. You do not have to take our word for it. Watch your own number over time and decide for yourself.
The reading keeps changing. Is the sensor broken?
It is working. Levels move with weather, ventilation, and the seasons. The long-term average on the history screen is the number that matters for your decision.
Where should I put it?
Start on the lowest level that is or could be regularly lived in, away from drafts, windows, and exterior walls. After a few weeks, move it to the bedroom of the youngest person in the house.
Does it need an app, Wi-Fi, or a subscription?
No. The reading, the alarm, and 504 days of history all live on the device.
Is this a scam to sell me a mitigation system?
We do not sell mitigation. You are buying the ability to know whether you need it, to avoid being upsold if you do not, and to verify that anything you install is still working years later.
Can I use my HSA or FSA?
Yes, with a Letter of Medical Necessity through our Truemed partnership.
You already pay for a smoke alarm and a CO detector that have never once gone off, because the arithmetic is obvious.
A small fixed cost against a catastrophic one. Same arithmetic. Quieter hazard. More bodies. The difference is that this one has never had anything on the shelf watching it, until now.
Know your number tonight