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Protect your family from the silent killer

Fylvena Vigil is an easy-to-use CO and gas detector that gives you real-time hazard levels – so you can protect your family before it's too late.

  • Detect danger at 0 PPM — Not at 70 PPM like cheap detectors that wait until it's too late

  • Plug & Protect — No ladders, no tools, no electrician. Installs in 30 seconds.

  • For the whole family — Protects children, parents, grandparents—everyone under your roof

TODAY ONLY 50% OFF!

NOT AVAILABLE ON AMAZON OR EBAY

  • "I was scrolling at 2 a.m. while breastfeeding when I saw a video about a family who lost their toddler to carbon monoxide poisoning. I was sick with fear. The next day, I found Fylvena Vigil. The first night I installed it, I slept through until morning—the first time since my son was born. I look at that '0' every day and breathe a sigh of relief. I finally feel like the mom I'm supposed to be."

    — Laura K., 32, Bavaria

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Lifetime Warranty

2025 Home Security Award Winner

90-Day Money-Back Guarantee

Don’t become the next headline.

Carbon monoxide is the most common cause of fatal poisoning accidents in Germany.

 

Every year, over 400 Germans die from CO poisoning — most of them in their sleep. The tragedy? Almost every victim had a "working" detector on the wall. Green light was shining. Silent.

 

CO comes from boilers, water heaters, garages, stoves. You can't smell it. You can't see it.

 

You just don't wake up.

Every breath counts. Cheap detectors wait. Fylvena Vigil doesn't.

Introducing the Fylvena Vigil CO & Gas Detector

The Fylvena Vigil is a professional detector specifically designed to give you real-time readings for CO, natural gas, and propane starting at 0 PPM.

 

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

 

Having a Fylvena Vigil in your home is one of the most important decisions you can make for yourself and your family.

 

Because the silent killer gives no warnings. Fylvena Vigil does.

Developed by firefighters. Built to save lives.

Fylvena Vigil was developed with first responders who experienced the same tragedy repeatedly—families with "working" alarms that never delivered the warning they deserved.

 

✓ UL 2034 Certified — Strictest CO alarm standards in Europe 

✓ Professional Sensors — Same technology used by fire departments 

✓ ETL Listed — Independently tested for safety and accuracy

 

Fylvena Vigil isn't just another alarm. It's the alarm firefighters wish every home had.

 

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

Meet the German families who protect themselves with Fylvena Vigil 

Already upgraded 500,000+ households

Fylvena Vigil is a professional detector specifically designed to give you real-time CO, natural gas, and propane readings from 0 PPM.

 

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

 

Having a Fylvena Vigil in your home is one of the most important decisions you can make for yourself and your family.

 

Because the silent killer gives no warnings. Fylvena Vigil does.

What makes Haven so special

What makes Haven so special

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Your purchase is protected by our
90-day "Sleep Peacefully" Guarantee

Here at Fylvena Vigil, we make sure that our customers feel safer—or we refund 100% of their investment. We are so confident that you will finally sleep soundly, knowing that your family is protected, that we assume all the risk.

90-Day Money-Back Guarantee

Some families feel the relief on the first night. Some take a week to stop checking the old detector out of habit. Everyone is different. The best thing you can do is try it — and if you don't feel safer, calmer, and finally certain that your family is protected, you have 90 days to request a refund and get your money back.

Authentic, verified results:
Learn why families are replacing their alarms and calling Fylvena Vigil "lifesaving"

Please note: All reviews below come from real paying customers. They have been authenticated and verified.

Colonel Robert M.

  • Verified Customer

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  • Rated
    Fylvena Vigil 4-Pack

  • I recommend this product

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"I bought 5—one for each family member."

"I kept one for myself and gave one to each of my adult children for their homes. I can't imagine a better gift for my family—a gift that says 'I love you and I want you to be safe,' without saying 'I'm worried about you.' I hope they never need it, but if they do, Fylvena Vigil will be there."

Amanda K., 59

  • Verified Customer

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  • Reviewed
    Fylvena Vigil 4-Pack

  • I recommend this product

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"My husband no longer argues about safety"

"My husband said our old detectors were 'fine.' Then I showed him that 40% of detectors don't alarm at dangerous levels. We ordered Fylvena Vigil that same night. He doesn't argue about safety anymore."

Michaela T., 74

  • Verified Customer

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  • Rated
    Fylvena Vigil 4-Pack

  • I recommend this product

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"I'm 74 and I made it myself"

"I am 74 years old and I secured my entire home in less than an hour without having to climb a dangerous ladder. I felt so capable and independent. I don't have to call my son to check things for me — Fylvena Vigil tells me everything is fine."

Thomas D.

  • Verified Customer

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  • Reviewed
    Fylvena Vigil 4-Pack

  • I recommend this product

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"One of the most important things I own"

"I'm 80 years old, and I often thought, 'What would I do if something happened, because I live alone?' Now I look at this little screen, I see '0', and I know. I'm not alone. Fylvena Vigil is watching."

Jon T.

  • Verified Customer

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  • Rated
    Fylvena Vigil 4-Pack

  • I recommend this product

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"He discovered what our €200 nest missed"

"We had a Nest Protect in every room. The best of the best, right? I bought Fylvena Vigil just for comparison. First week: Fylvena Vigil showed 29 PPM. The Nest? Silent. Green light. We had a cracked exhaust pipe. Four children in that house. I don't even want to think about what could have happened."

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Questions from Homeowners

How does Fylvena Vigil differ from my current detector?

Most detectors just show a green light — which is on even when the sensor is faulty. They only alarm at 70 PPM, i.e. AFTER 1-4 hours of exposure. Fylvena Vigil shows you real-time values from 0 PPM on a digital display. You see the truth, not a light that lies.

Will it trigger a false alarm if I cook?

No. Fylvena Vigil uses professional electrochemical sensors—the same type used in industrial environments. They detect actual threats, not toast or steam from the shower.

Does Fylvena Vigil detect propane and natural gas, or only carbon monoxide?

Fylvena Vigil is a 4-in-1 detector. It monitors carbon monoxide, natural gas AND propane, plus temperature and humidity. This is a crucial difference. Most cheap detectors from hardware stores only detect CO. If your stove is leaking natural gas, your heater has a propane leak, or your hot water line is damaged, these detectors will remain completely silent. Fylvena Vigil detects all three gas hazards in real time, with PPM values displayed from 0. One device. Complete protection. No gaps.

 

Where should I install Fylvena Vigil? Does the height or position of the socket matter?

Fylvena Vigil plugs into any standard wall outlet—no ladder, no tools, no electrician. 30 seconds and you’re protected. When placing, focus on two priorities: near gas appliances (furnaces, stoves, hot water heaters) and in hallways outside bedrooms where your family sleeps. Fylvena Vigil sensors are calibrated to detect all three gases regardless of outlet height. Most families start with one near the furnace/water heater, one in the kitchen near the stove, and one in the hallway outside the bedrooms. The 4-pack will fully cover most homes.

Is it difficult to install?

One per floor + near bedrooms + near gas appliances (boilers, water heaters, garage). Most houses need 4. Apartments typically 2.

How many do I need?

One per floor + near bedrooms + near gas appliances (boiler, water heater, garage). Most homes require 4. Apartments typically 2.

Can I use it if I live alone?

Yes! Fylvena Vigil is perfect for people living alone. It watches over you around the clock and warns you of dangers, even while you sleep. Many of our clients are seniors who live independently and wanted security.

What if he doesn't work for me?

You are protected by our 90-day "Sleep in Peace" guarantee. If for any reason you are not satisfied, we will refund every cent. No questions asked. Plus, the lifetime warranty means if anything ever goes wrong, we'll replace it for free.

My detector is hardwired. Isn't that better?

Hardwired means it runs on electricity – but the SENSOR inside expires in 5-7 years. The green light still comes on even when the sensor is dead. Fylvena Vigil plugs in and gives you a real number, so you always know it’s working.

What are the parking and public transport options?

Shipping from German warehouse. Typically 3-5 business days.