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No internal battery
Powered directly from the vehicle socket, so there is no separate charging routine.
Built for vehicle cabins
See CO₂ inside your car — in real time.
EVO-CO2V plugs directly into a 12V/24V vehicle socket, samples CO₂ every 10 seconds and gives an audible alert above 1400 ppm.
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Price: $49.80
U.S. reference price. Price and availability may vary by market.
10 s
CO₂ sampling interval
1400 ppm
audible alert threshold
12V / 24V
vehicle power
No battery
direct plug-in power
What is the EvoDevice EVO-CO2V?
The EvoDevice EVO-CO2V is a direct plug-in vehicle CO₂ monitor for compatible 12V/24V accessory sockets. It uses NDIR sensing, samples cabin carbon dioxide every 10 seconds, displays vehicle supply voltage, and gives an audible device alert above 1400 ppm. The rotatable color display is designed for continuous in-vehicle viewing without an internal rechargeable battery.
EVO-CO2V measures carbon dioxide (CO₂) only. It does not detect carbon monoxide (CO) and does not replace a certified CO alarm.
Why EVO-CO2V
Designed around the way a car is actually used.
A fixed power point, fast sampling and a clear display make it practical for everyday vehicle use.
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10-second sampling
Frequent readings help you follow changing CO₂ conditions inside the cabin.
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Audible high-CO₂ alert
A beep sounds above 1400 ppm as a reminder to improve ventilation when safe.
Vehicle-ready mounting
Plug it in. Set the angle. Keep the reading in view.
The display head can be adjusted for different console layouts and accessory-socket positions.
- ✓ No loose charging cable across the dashboard.
- ✓ A consistent mounting point for everyday monitoring.
- ✓ Rotatable screen for easier viewing.
Clear information at a glance
CO₂ concentration and vehicle voltage on one color screen.
The display keeps the two readings visible together so you can check cabin CO₂ and the vehicle supply voltage quickly.
- ✓ Large CO₂ ppm value.
- ✓ Vehicle voltage display.
- ✓ Color status presentation for faster reading.
Start-up
Allow the NDIR sensor to stabilize after power-on.
After plugging in the meter, let the warm-up sequence complete before relying on the displayed cabin CO₂ value.
- 1 Plug into a compatible 12V/24V socket.
- 2 Let the sensor complete its warm-up.
- 3 Monitor the live cabin reading while driving.
NDIR CO₂ sensing
Measures carbon dioxide using infrared absorption.
NDIR sensing passes infrared light through a gas chamber. CO₂ absorbs specific infrared wavelengths, allowing the sensor to estimate concentration.
Important:
EVO-CO2V measures carbon dioxide (CO₂).
It does not measure carbon monoxide (CO)
and is not a replacement for a certified CO alarm.
Everyday vehicle use
Useful whenever people spend time in a closed cabin.
Keep cabin CO₂ visible during normal driving and longer trips.
Daily commuting
Watch how CO₂ changes during routine city and highway driving.
Road trips
Keep the reading visible during longer periods with windows closed.
Family vehicles
More occupants can change cabin air conditions faster.
12V / 24V vehicles
Designed for compatible vehicle accessory sockets.
REAL-WORLD CABIN TEST
More occupants can make cabin CO₂ rise faster.
In one controlled in-car test series, EVO-CO2V recorded the approximate time for cabin CO₂ to reach the device's 1400 ppm alert level as occupant count increased.
Observed time to 1400 ppm
This test illustrates why a dedicated in-car CO₂ display can be useful when windows are closed and cabin ventilation is limited.
These are measured results from one test setup, not universal predictions. Actual timing varies with vehicle volume, starting CO₂, outside-air intake, recirculation, leakage, occupant activity and other conditions.
1 occupant~960 s · 16:00
2 occupants~433 s · 7:13
3 occupants~246 s · 4:06
4 occupants~168 s · 2:48
5 occupants~140 s · 2:20
Purpose: show the relationship between passenger count and cabin CO₂ buildup under the specific test conditions. The 1400 ppm value is the EVO-CO2V device alert level, not a universal safety threshold.
VEHICLE AIR QUALITY GUIDE
Want to understand what changes cabin CO₂?
Learn how recirculation, fresh-air ventilation, passenger count, air conditioning, cabin filters and air purifiers interact inside a vehicle — and what a CO₂ monitor can and cannot tell you.
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Vehicle Air Quality & CO₂ Monitoring Guide
EvoDevice's vehicle air quality guide explains cabin CO₂, recirculation vs. fresh-air mode, filtration, sensor placement, CO₂ trends and the important difference between CO₂ and carbon monoxide.
Read the Vehicle Air Quality Guide →REAL-WORLD VEHICLE TESTS
See EVO-CO2V in actual cabin CO₂ tests.
Explore measurements recorded in real vehicles under different passenger, ventilation, HVAC and parked-cabin conditions.
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Five People + Recirculation
Cabin CO₂ rose from about 558 ppm to above 2,000 ppm in a little over two minutes in our five-person recirculation test.
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Recirculation vs Fresh Air
See how cabin CO₂ changed when the vehicle switched from recirculation to outside-air ventilation in a real driving test.
AUTO
Does AUTO Switch to Fresh Air?
In our recorded test, cabin CO₂ reached about 3,813 ppm while the climate-control display still showed recirculation.
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Cooling First, Then Fresh Air
After initial hot-cabin ventilation and A/C recirculation, EVO-CO2V displayed 1,034 ppm before we switched to fresh-air mode.
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How Fast Does CO₂ Fall After Everyone Leaves?
CO₂ fell from 3,344 ppm to 2,860 ppm after 12 minutes and remained above 2,800 ppm later in this parked, empty-cabin observation.
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Can an Air Purifier Reduce Cabin CO₂?
During our real test, cabin CO₂ still rose from about 735 ppm to about 1,407 ppm while the purifier was running.
FAQ
Before you plug it in.
Does EVO-CO2V measure carbon monoxide (CO)?
No. EVO-CO2V measures carbon dioxide (CO₂). It is not a carbon monoxide detector.
Does it contain a rechargeable battery?
No. It is powered directly from a compatible 12V/24V vehicle socket.
How often does it sample CO₂?
The device samples CO₂ every 10 seconds.
When does the audible alert sound?
The high-CO₂ beep alert is triggered above 1400 ppm.
Can I adjust the viewing angle?
Yes. The display head can be rotated to suit different vehicle console positions.
Does EVO-CO2V show vehicle voltage?
Yes. The screen shows vehicle supply voltage together with the current cabin CO₂ reading.
Make cabin CO₂ visible.
Plug in EVO-CO2V, let the sensor stabilize and keep the current value in view.
Price: $49.80
U.S. reference price. Price and availability may vary by market.
View Purchase Options →
Vehicle Air-Quality Definitions
CO₂ and CO are different gases
EVO-CO2V measures carbon dioxide using NDIR sensing. It does not detect carbon monoxide and is not a replacement for a certified CO alarm. Review CO₂, CO, NDIR, ventilation and recirculation terminology in the glossary.
CO₂ · CO · NDIR · Ventilation · Recirculation
Open Measurement Glossary →
Vehicle Air Quality Product Selection
Is EVO-CO2V the measurement tool you need?
EVO-CO2V is designed for vehicle cabin carbon-dioxide monitoring. Use the EvoDevice Product Selection Guide to see how its CO2 monitoring role differs from the plant, light, UV, solar and surge-protection product families.
Compare: Vehicle CO₂ · Plant · Light & UV · Power
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