SENSZO 4-in-1 CO & Gas Detector

  • Know what’s in the air at a glance
  • Monitors CO, gas, temperature & humidity
  • Audible alerts when attention is needed
  • Plug in and set up with no tools
  • Cover more rooms with a multi-device plan
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Lifetime Warranty
24/7 Expert Care

We’re selling out faster than expected. Order now before we run out again.

PREVIOUS MONTH Sold Out (3200 SENSZO Detectors Were Sold)
CURRENT MONTH 83% Sold ( 3984 out of 4800 SENSZO Detectors)

SENSZO brings the key conditions in your home into one clear, easy-to-read display.

It is designed to monitor carbon monoxide and fuel gas, while also showing temperature and humidity, so you can check the conditions in the rooms your family uses every day.

SENSZO gives you a clear on-screen reading and an audible alert when the device reaches its documented alert setting.

If an alarm sounds or you believe there may be a gas issue, follow the product instructions and your local emergency guidance straight away.

Put SENSZO in the rooms that matter most to your household, such as near bedrooms, main living spaces or areas with fuel-burning appliances.

Always follow the placement instructions supplied with your device and any local safety requirements.

Standard detectors give a simple alarm. SENSZO gives you a clear display.

So you can see the conditions it is designed to monitor at a glance instead of relying on a status light alone.

SENSZO 4-in-1 CO & Gas Detector

SENSZO 4-in-1 CO & Gas Detector

$99.95 $59.99
$99.95 $59.99
★★★★★

It actually saved our lives

“The best investment I made this year. I bought four detectors for our home and one of them picked up a small carbon monoxide issue shortly after installation. I am forever thankful we had it.”

It actually saved our lives
★★★★★

Peace of mind with the kids at night

“Having young children in the house makes you think differently about safety. I check the display before bed and it gives me one less thing to worry about.”

Peace of mind with the kids at night
★★★★★

Bought them for my parents too

“After setting ours up, I ordered a pair for my parents straight away. It is simple enough for anyone to use and it feels like a thoughtful thing to have in the home.”

Bought them for my parents too
★★★★★

It caught something we would not have noticed

“We installed one near our utility room and the reading made us take a closer look at an appliance we had not thought twice about. Getting it checked gave us huge peace of mind.”

It caught something we would not have noticed

Find what coverage works for you

How many rooms do you want to cover?

Choose a coverage option to see an illustrative home setup that suits your household.

Tap the rooms you want to cover

Illustrative home with lounge, utility room, bedroom and kitchen

✓

More time to notice. More time to act.

Carbon monoxide and fuel gas builds without an obvious sign. SENSZO puts the readings it is designed to monitor directly on screen, so you have a clearer view of the conditions in your home, not just a light that tells you the unit has power.

WHAT A STATUS LIGHT CAN TELL YOU

Power status, not live room readings

  • Shows that the device has power
  • May show its current operating status
  • Does not show the same on-screen view of room readings
WHAT SENSZO LETS YOU SEE

A clear view, right on screen

  • Current CO and fuel-gas readings
  • Temperature and humidity in the same device
  • A simple display you can check at a glance
SENSZO 4-in-1 CO and gas detector

THE RISK INSIDE THE HOME

What carbon monoxide does to the body

Carbon monoxide builds quietly, and the effects can begin before a standard detector alarms. That is what makes earlier visibility so important.

30 PPM

Nausea, headache, fatigue

50 PPM

Physical stress gets louder

70 PPM

Standard alarms finally react

*PPM - parts per million, showing how much carbon monoxide is present in the air.

SENSZO detector in a home with grandparents and child

The first sign of trouble should not be an alarm.

SENSZO shows CO and gas readings on one clear screen, giving your household more time to notice a change and act.

THE NUMBERS ARE REAL

Here’s why EVERY household needs proper protection.

Carbon monoxide has no smell and no colour. The risk is believing everything is fine simply because there is no warning yet.

400+

Americans die each year from unintentional CO poisoning not linked to fires.

100K+

Americans visit an emergency department for CO poisoning each year.

14K+

CO poisoning leads to more than 14,000 hospitalizations each year.

Catch the problem early before it becomes a problem, protect your family from what you can't see.

U.S. CDC, Carbon Monoxide Poisoning Basics, reviewed January 2026.

Firefighter holding a SENSZO detector in a fire station

A firefighter's perspective

The green light was on. The family was still in danger.

I have walked into carbon monoxide calls where the alarm never sounded, the green light was still on, and the family had no idea anything was wrong. That is what made me take home protection seriously. SENSZO gives me a clear reading, not just a light that tells me to assume everything is fine.

UNDERSTAND YOUR SENSZO

Every number has a purpose.

One clear screen gives your household a better view of what SENSZO is monitoring in the room.
°FRoom temperatureShows the temperature in the room where SENSZO is plugged in.
COCO in PPMShows the amount of carbon monoxide detected in the air.
SENSZO display showing temperature, CO, gas and humidity
GASGas in %LELShows the combustible-gas reading, including natural gas and propane.
%RHIndoor humidityShows the amount of moisture in the air.

SENSZO is designed to provide visible environmental readings. Always follow your product instructions and local requirements.