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sentivo™ 4-in-1 detector
sentivo™ 4-in-1 detector
sentivo™ 4-in-1 detector
sentivo™ 4-in-1 detector
sentivo™ 4-in-1 detector
sentivo™ 4-in-1 detector
sentivo™ 4-in-1 detector
sentivo™ 4-in-1 detector
sentivo™ 4-in-1 detector
sentivo™ 4-in-1 detector
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variant-hidden
variant-hidden
variant-hidden

4.8 From 4,200+ Reviews

sentivo™ 4-in-1 detector

Sentivo Detector™ shows the carbon monoxide and gas you can't see or smell, live, from zero. You'll see it rising before a standard alarm ever makes a sound, so your family is never the last to know.

Title

Shows CO from 0 PPM. Not 70 PPM like standard alarms.

4 sensors in 1. CO, gas, temperature and humidity.

Works when the power's out. Built-in battery backup.

No Wi-Fi, no app. Works right out of the box.

Plugs in, 30 seconds. No ladder, no tools, no electrician.
Selling out fast — limited stock
Stock left

Note: This Product is NOT Available on Amazon

Fast US Shipping

100-Day Money Back Guarantee

Free returns

Product Overview

Sentivo Detector™ shows the carbon monoxide and gas you can't see or smell as a live number on its screen. You'll see the level rising before a standard alarm ever makes a sound, so your family is never the last to know.

  • Monitors: carbon monoxide, natural gas & propane, temperature, humidity
  • Display: 2" color screen with a live CO reading from 0 PPM
  • Alerts: color-coded (green = safe, yellow = warning, red = danger) plus audible alarm
  • Night mode: dim the screen or turn it off; it lights back up automatically if there's a
    problem
  • Flips 180°: reads right-side up in any outlet
  • Power: plugs into any US outlet, with built-in rechargeable battery backup
  • Build: flame-retardant material
  • Size: 4.7 × 2.4 × 2.1 in
  • In the box: Sentivo Detector™, plug, user manual

How It Works

Sentivo Detector™ uses an electrochemical sensor that measures carbon monoxide in the air continuously, and shows you the result live on the screen.

  1. Plug it in. Any standard outlet. On first use, leave it running for 24 hours so the sensor is
    fully ready.
  2. Watch the number. The screen shows the live CO level from zero, plus gas,
    temperature and humidity.
  3. Know at a glance:
    • 🟢 Green: the air is safe
    • 🟡 Yellow: CO or gas is rising, time to check and ventilate
    • 🔴 Red: danger level, loud alarm; get everyone outside
  4. Test it anytime. Press the self-test button while it's plugged in to run a quick check.

Want to see it work?

  • Gas: switch to high sensitivity (hold the top button), then hold an unlit lighter near the
    vent and release the gas. The screen turns red within seconds.
  • Carbon monoxide: blow out an incense stick and hold the smoke near the vent for a
    few seconds. You'll see the number start to climb.

How Many Do I Need?

One per floor, plus one outside the bedrooms.
Carbon monoxide builds up near its source: the furnace, water heater, gas stove or garage. A single detector only reads the room it's in, so it can show zero while another floor fills up. That's why we don't recommend buying just one.

 

Find your home:

 

🏢 1–2 bedroom apartment: 2 detectors

  • Kitchen + outside the bedroom

 🏠 Single-story house: 4 detectors

  • Kitchen + bedroom hallway + furnace + garage

 🏡 Two-story house with basement: 4 detectors

  • Basement + kitchen + upstairs bedrooms + garage

 👨‍👩‍👧 Large home, or your parents' home too: 8 detectors

  • Every floor covered, or two homes fully protected

Not sure? Most families choose the 4-pack.

Shipping

Fast US shipping on every order.

  • Ships fast: orders ship within 24 hours on business days.
  • Delivery: 6–9 business days after your order ships.
  • Shipping within the USA: $5.99
  • Tracked: you'll get a tracking link by email as soon as your order ships.
  • Order status: check anytime at Track Order.

Questions about your order? Email support@primo-goods.com or call +1 (888) 798-8029, 9 AM – 5 PM EST

Honest Detection & Safety

We'd rather you know exactly what Sentivo Detector™ does, and what it doesn't.


What it detects

  • Carbon monoxide (CO)
  • Natural gas and propane
  • Temperature and humidity

What it doesn't detect

  • Smoke, radon or carbon dioxide (CO₂)

Avoiding false readings

  • The sensor can react to strong fumes like paint, solvents, alcohol, ammonia and some cleaning products. Keep it away from them.
  • Don't place it in direct sunlight, in bathrooms, or right next to the stove.
  • While it's charging, temperature and humidity can read a few degrees high. This is
    normal.

don't just take our word for it

the danger you can't see, now visible

A lab-grade electrochemical sensor reads the air in your home continuously, down to
the very first trace of carbon monoxide. Four sensors, one live screen, and not a second
of guesswork.

Sensor 1

carbon monoxide

Read from zero and alarms before levels turn dangerous.

Sensor 2

gas leaks

Catches natural gas and propane, from a slow leak to danger

Sensor 3

temperature

Spot a furnace or room running hot before it becomes a problem.

Sensor 4

humidity

Flags damp air early, before mold gets a chance to grow

0 ppm

Reads From Zero

4-in-1

Sensors, One Screen

10-year

Sensor Life

24/7

Battery Backup

know before it's too late

Four sensors, one live screen, and a battery backup that keeps watching when the power goes out.

Get Sentivo Now And Save Up To 50% Off

not some amazon knockoff

built to protect. backed for life.

Most cheap detectors are unbranded factory parts with a sensor nobody can vouch
for. Sentivo Detector™ is built with a lab-grade sensor and safety-tested
components, because it's watching over your family.

Lab-Grade Sensor

An electrochemical CO sensor that reads the air continuously, down to the very first
trace. Rated for 10 years of service.

Flame-Retardant Build

The housing is made from flame-retardant material, so it holds up in the places CO
comes from: garages, basements and boiler rooms.

Works Through Blackouts

A built-in rechargeable battery keeps it running when the power goes out, right when generators and space heaters come on and CO risk is highest.

Lifetime Warranty

Covered for as long as you own it, on top of a 100-night money-back trial. If it's not right, we make it right.

Lab-Grade Sensor

An electrochemical CO sensor that reads the air continuously, down to the very first
trace. Rated for 10 years of service.

Works Through Blackouts

A built-in rechargeable battery keeps it running when the power goes out, right when generators and space heaters come on and CO risk is highest.

Flame-Retardant Build

The housing is made from flame-retardant material, so it holds up in the places CO comes from: garages, basements and boiler rooms.

Lifetime Warranty

Covered for as long as you own it, on top of a 100-night money-back trial. If it's not right, we make it right.

real protection vs a beep in the dark

Most CO alarms stay silent until the air is already dangerous. Here's how Sentivo
Detector™ stacks up.

Primo Good

Sentivo Detector™

Standard Alarms

Shows real-time CO levels

Live display from 0 PPM

Just a green light

Alerts you early

See danger rising

Waits until ~70 PPM

Detects gas leaks

Natural gas + propane

CO only

Temperature & humidity

On the same screen

Not measured

Easy install

Plugs in, 30 seconds

Ceiling mount, ladder required

Guarantee

Lifetime warranty

Replace every 5–10 years

real families. real protection.

4.8 ★ from 2,127 verified reviews from families who'd rather know than guess.

our 100-night "sleep-easy" guarantee

Plug it in tonight and live with it for 100 nights. If you're not sleeping easier for any reason, send it back for a full refund, and we'll even cover the return shipping. After that, every Sentivo Detector™ is covered by our lifetime warranty. You either feel safer, or you pay nothing.

know before it's too late

Four sensors, one live screen, and a battery backup that keeps watching when the power goes out.

Get Sentivo Now And Save Up To 50% Off

got questions? we got you covered!

Everything you need to know before protecting your family.

How is this different from the detector I already own?

A standard CO alarm shows a green light and stays silent until levels reach around 70 PPM, sometimes for hours. Sentivo Detector™ shows you the actual CO level, live, from zero, so you see a problem building long before a standard alarm would make a sound. It also detects natural gas and propane leaks. Keep your existing alarm; Sentivo adds the early warning it can't give you.

How many do I need?

One per floor, plus one in or right outside the bedrooms. For a typical two-story home with a basement, that's 4: one in the basement by the furnace and water heater, one on the main floor, and one outside the bedrooms, plus one near an attached garage or gas appliance. Every room with a furnace, water heater or gas stove is a CO source, so the more of them you cover, the earlier you'll know.

Where do I put it? What height?

Plug it into any standard outlet. Outlet height is fine, because CO mixes evenly with the air. Keep it a few feet away from the stove and fireplace, and out of bathrooms and direct sunlight. The screen flips 180°, so it reads right-side up in any outlet.

Does it detect gas leaks too?

Yes. It picks up natural gas (methane) and propane (butane) and shows them on the same screen as CO. For propane, switch it to high-sensitivity mode by holding the top button.

What happens if the power goes out?

It keeps running on its built-in rechargeable battery. That matters, because power outages are when people run generators and space heaters, and CO poisonings spike. It recharges automatically when the power comes back.

Will it go off when I cook?

Normal cooking won't set it off. It reads carbon monoxide and gas, not smoke or steam. Just keep it a few feet from the stove. Very strong fumes like paint, solvents or cleaning sprays can affect the sensor, so keep it away from those too.

How do I know it's working?

You can see it working: the live number is on the screen every day. You can also run a self-test anytime by pressing the self-test button while it's plugged in. Or test it for real: hold an unlit lighter near the vent in high-sensitivity mode, and the screen turns red within seconds.

Can I use it in a rental or RV?

Yes. There's nothing to install, so it moves with you. Unplug it and it runs on its battery in portable mode, which is perfect for rentals, hotels, cabins and RVs.

What if it doesn't work for me?

Try it for 100 nights. If you're not happy for any reason, send it back for a full refund, and we'll cover return shipping. After that, it's covered by our lifetime warranty. Reach us anytime at support@primo-goods.com or +1 (888) 798-8029, 9 AM – 5 PM EST.

Why isn't it sold on Amazon?

We sell direct so every Sentivo Detector™ ships from fresh stock, straight from us. No resellers, no aged inventory, no knockoffs. Primo Goods is the only authorized seller.

one on every floor

"Ordered the 4-pack after my brother-in-law had a scare with his water heater. One per floor + one in the hallway outside the bedrooms. Reads 0 PPM consistently."

Dan K. / Verified

peace of mind for my dad

"My dad is 78 and lives alone. I bought the 2-pack and drove over to plug them in myself. Now when I call him Sundays, I ask what the number says and he reads it to me. 0 every time. Silly little ritual, but it makes me feel better."

Sarah K. / Pittsburgh, PA

eye-opening in the kitchen

"Got one near our gas stove. Reads 2–6 PPM when the burners are going and drops back to 0 within 10 min of turning the hood on. Honestly kind of eye-opening. We run the hood every time now."

Tom V. / Verified

know before it's too late

Four sensors, one live screen, and a battery backup that keeps watching when the power goes out.

Get Sentivo Now And Save Up To 50% Off

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