Indoor CO2 Monitor

The SRC-C CO2-monitor supervises indoor air quality by measuring the CO2 concentration. Adjust fresh air supply accordingly to maintain a healthy and safe working environment. Contains sensor with NDIR technology and therefore fulfills requirements set by FOPH Switzerland (Federal office of public health).

Why Indoor Air Quality is important?

Clean air is critical to our health. Air pollution is one of the world's leading risk factors for death, attributed to up to 9% of deaths globally. It is also one of the leading risk factors for disease burden. We breathe about 11,000 liters of air every day. That's nearly 8 liters every minute and more than 300 million liters over a lifetime. Depending on our work and habits we spend up to 90% indoors.

Indoor air pollution has been linked to a wide variety of adverse health effects, including headaches, respiratory problems, frequent colds and sore throats, chronic cough, skin rashes, eye irritation, lethargy, dizziness and memory lapses. Long-term effects may include an increased risk of cancer. It of course as well affects our ability to concentrate, study and our productivity.

How to measure air quality?

Air is invisible to our eyes. So, how do we know when an air exchange is needed? When there are people present, carbon dioxide is a good indication for air quality. The amount of carbon dioxide in a building is usually related to how much fresh air is being brought into that building.

Viral Risk Prevention

We do not directly measure nor detect viruses in the air. Instead, CO2 concentration provides essential information on safety and comfort of workspaces. The value also provides an indication on how to manage and reduce your risk, such as increasing or changing ventilation systems or setting occupancy limits on specific rooms.

2 Years Warranty

Volume Discount

2 Years Warranty

Volume Discount

SRC-C - Indoor CO2 Desktop Monitor

The SRC-C is an indoor CO2 monitoring desktop unit. Three LEDs in the colors green, orange and red indicate the CO2 concentration of the room air.


3 - LED logic

Three color LEDs are used to indicate CO2 concentration:
< 0700 ppm – Green
< 1000 ppm – Orange + Green
< 1300 ppm – Orange
< 1600 ppm – Orange + Red
< 2000 ppm – Red

The levels are programmable using a device called OPA-S.


ABC Calibration

The ABC background calibration constantly supervises the measured CO2 concentrations. The calibration function expects the CO2 values sink to 400 ppm when the room is not occupied. Over a period of several days the controller tries to reach this value step by step through adjustment of 30ppm per day max. In order to reach the given accuracy, it is required that the sensor is for at least 3 weeks in continued operation.


Accurate Measurement

The CO2 concentration is measured through non-dispersive infrared (NDIR) waveguide technology with ABC automatic background calibration algorithm. The applied measuring technology guarantees excellent reliability and long-term stability.

For more information please download our product manual

Where do we need it?

almost everywhere!

Indoor CO2 measurement and supervision for home, office, school, restaurants, hospitals, etc…)

About Us

Vector Controls GmbH is an emerging, dynamic, global company based in Switzerland (Wetzikon/ ZH), with subsidiaries in the USA and China. We develop, produce and distribute innovative, reliable and user-friendly control and sensor products for the heating, ventilation, air conditioning and refrigeration (HVAC) market worldwide. 

Vector Controls was found in 2001 by four experienced industry professionals and quickly developed into a success story.

More Information

You can find more details, technical specifications about all you need to know about the CO2 Desktop Monitor here.