“Most people only think about carbon monoxide after a callout. At home, I want a clear way to check the air in the rooms my family uses every day. That is why I keep SENSZO plugged in.”
THE SILENT KILLER IN ORDINARY HOMES
Carbon monoxide is silent and scentless.
See live CO and gas readings on one screen, instead of relying on a status light alone.
- Live CO and gas readings
- Plug in and check at a glance
- No app or setup needed
- Firefighter recommended
- 100-Night Guarantee
- Free express shipping
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.
Headache, fatigue, nausea
Physical stress increases
Most alarms finally react
PPM means parts per million, showing how much carbon monoxide is present in the air.

The first sign of trouble should not be an alarm.
SENSZO puts CO and gas readings on one clear screen, giving your household more time to notice a change and act before a late alarm becomes the first sign that something is wrong.
THE DIFFERENCE YOU CAN SEE
A green light is useful. A clear display tells you more.
A standard alarm has an important job. SENSZO adds a simple screen so you can check the readings it is designed to monitor at a glance.
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
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
Measured, not assumed
Live CO readings help you spot a change in your air early, instead of waiting for an alarm to be your first sign.
More than just CO
CO isn't the only thing that can change in a home, SENSZO also monitors combustible gas, temperature, and humidity, giving you a fuller picture of the room's you spend time in.
More time to react
SENSZO alerts at 10 PPM and shows the live level, so a standard 70 PPM alarm doesn't have to be your first warning.
CAN YOU TRUST THE DETECTOR YOU ALREADY HAVE?
You have a detector. But will it work when it matters?
40% of tested home CO detectors failed to alarm at the highest hazardous levels
The average home check costs $500+. SENSZO gives you clear readings every day.
FAQs
Yes, SENSZO is designed to monitor carbon monoxide and combustible gas & propane in one device. It also shows temperature and humidity on the same screen.
Three to four monitors is ideal for full-home coverage. Place one near the bedrooms, one in the main living area, one near your furnace or water heater, and one on any additional floor. That covers the places you sleep, spend time, and run fuel-burning appliances.
For carbon monoxide, height is less important because CO mixes evenly with the air. Simply plug SENSZO into a suitable wall outlet. For combustible-gas monitoring, choose an outlet in the area you want to monitor and keep the screen easy to check.
The sensor is designed for up to five years of normal use. SENSZO also comes with a 100-Night Trial, so you can make sure it is right for your home.
The live display shows the current CO and combustible-gas readings on screen, along with temperature and humidity, so you can see it is actively monitoring the room.
No. Plug SENSZO into a suitable wall outlet and allow it to complete its initial calibration. No Wi-Fi, app, or battery replacement needed.
Yes. We select the plug type based on the delivery country, so your SENSZO arrives with the correct plug for local wall outlets.
