For Home For Pro

Monitor CO2 level

Tired and can’t concentrate?

Ever feel tired and drowsy in a room? Can’t focus and head feels heavy? Your air quality might be to blame. Namely, the CO2 level.

What does Aranet4 measure?

High CO2 levels decrease productivity

According to Harvard research, high CO2 levels can decrease your productivity, cognitive abilities and general wellbeing. For example, if the CO2 concentration in the room exceeds 1000 parts per million, your cognitive function decreases by 15%. Worse yet, if CO2 levels reach 1400 ppm, your cognitive abilities drop by a staggering 50%.

Read the research

CO2 level as a proxy for ventilation quality

Monitoring CO2 in public spaces helps to encourage proper ventilation. CO2 is a gas produced when we exhale. So, the higher CO2 in the room, the more you’re breathing air that someone else has already exhaled. Therefore, monitoring CO2 levels provides warnings about the air quality deteriorating.

Homey integration

Read and display data about conditions from Aranet devices via Homey. Within, you can view graphs about environmental changes over time and create flows to take action whenever the situation requires.

Learn more

Aranet4 – your productivity assistant

High accuracy

The non-dispersive infrared sensor (NDIR) inside Aranet4 ensures high precision measurements

Easy to use

Aranet4 is easy for anyone to use – the colour coding warns you when the air quality deteriorates

Aranet Home app

Connect your device to the app to view, track, and analyze data from over the past 90 days

Wireless and portable

The device can last up to 10 years, depending on the user's selected measurement interval frequency

Choose between

Aranet4 HOME

Best for homes

The ideal choice for a living space to monitor air quality in one particular location at a time

  • Standalone device
  • Track air quality at home or take it with you wherever you go
  • Get notified when you need to improve air quality
  • Connect to our free Aranet Home app to view and analyze historical data
  • High quality, reliable and easy to use for anyone

Aranet4 PRO

Best for businesses

For multiple rooms and locations to constantly monitor the conditions on premises

  • Works best with Aranet PRO base station
  • Use multiple Aranet4 PRO devices in different locations and connect them to the base station and Aranet Cloud for centralized monitoring
  • Integrate Aranet4 PRO monitors in your existing ventilation systems and solutions
  • Access our professional tech support

What people say about Aranet4

“This is an exceptionally well-built device which, having been users of SAF microwave products for over ten years, comes as no surprise to us. The engineering quality is very good. Would recommend.”

— Zycomm,

“An indispensable tool. Highly recommended for monitoring schools, workplaces and home air quality.”

— Lucia Lara,

“Aranet4 HOME is so portable that it can be used on the move, can be a great way to slow down the spread of Coronavirus and airborne viruses that may be lurking infoors.”

— Joseph Dyson, author at

"The Aranet4 is a neat, little air quality monitor with high-grade CO2 sensor.”

— Mark McCall, Editor at

Aranet4 users worldwide

Don’t hesitate

High CO2 levels can negatively affect your well-being and productivity. Take care of yourself and your loved ones

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