Unfortunately, we are currently having issues with our app. We are working to resolve the matter!

Mill Sense Air

The air you breathe is very important to your health and well-being. With Mill Sense Air, you can measure the air quality in your home, to easily achieve a healthy indoor climate for you and your family.
It stands out from other indoor climate sensors by being wireless, having an integrated WiFi function, and being rechargeable—which also makes it an environmentally-friendly alternative. The minimalistic, classic Scandinavian design fits naturally into any modern home. The Mill Sense Air is small and pretty and looks just as good on your table as it does on your wall. Connected Mill Sense Air to your Mill WiFi heaters for more precise temperature control*. A sensor that is separate from the product provides more accurate values. Air quality varies considerably from one room to another. Available in 3-pack at a better price. Small and elegant design that fits naturally into any modern interior. Can be placed freestanding or hung on the wall with the wall bracket included. Easy mounting with an adhesive backside of the wall bracket means that you do not have to use screws and tools. Mill Sense Air is rechargeable and USB cable type C is included.

At a glance

WiFi + App control
Meaures toxins and chemicals
Precise temperature control
Measures humidity levels
Ensure fresh air



Too high levels of humidity can cause mold growth which is harmful for your health, as it can cause asthma and allergies. It is therefore crucial with good ventilation when taking a shower, drying of clothes and cooking. In winter, dry air is a common problem due to heating. This can also go hard on furniture and wooden floors, such as parquet. The floor may start to creak or, in the worst case, crack. Due to new construction techniques, the relative humidity often drops below the recommended values in new houses, partly due to good insulation. A humidifier / dehumidifier can be a solution to achieve a recommended humidity level in the home. The recommended level of humidity: 30-60%. Max Accuracy: Relative humidity sensor ±2.0% RH


Total Volatile Organic Compounds (TVOC) are airborne chemicals & toxins emitted from everyday items such as paint, furniture and cleaning products. They can be harmful at a high concentration, causing irritations in eyes, nose and throath. Depending on the level and length of exposure it can also cause more serious damage to liver and kidneys. Mill Sense Air measures the following VOC’s: Alcohols, Aldehydes, Ketones, Organic Acids, Amines, Aliphatic and Aromatic Hydrocarbons. Recommended TVOC level: < 220 ppb. An air purifier will be able to ensure that the TVOC level is within the recommended level.


A consistent temperature in all rooms are important for a healthy indoor climate. It is not recommended to turn the heat completely off in rooms you are not using, as in combination with humidity this can cause mould growing. Temperaure affects performance, comfort level and cold or flu symptoms. Connect Mill Sense Air to Mill WiFi heaters for more precise temperature control*. This way you the temperarure will automatically adjust to your daily routines. Recommended temperature: 18-25°C. Max Accuracy: Temperature sensor ±0.15°C


The eCO2 measurement is calculated from the VOC measurement. The calculation makes some assumptions about the percentage of VOCs that are due to CO2 . If there are substantial concentrations of other VOCs present, the eCO2 reading would be higher than the actual CO2 level. Moderate to high levels of carbon dioxide can cause headaches and fatigue, and higher concentrations can produce nausea, dizziness, and vomiting. Good ventilation and regular ventilation are important to maintain a recommended eCO2 level. Recommended eCO2 level: <1200 ppm.

Product images

Other features

Press the button on the Mill Sense Air to understand your air quality levels:

It is cold in the room, temperature is below 18°C.


Indoor air quality is good and the sensor values are within recommended level.


Indoor air quality is approaching poor/moderate levels. Take simple steps such as opening windows to bring fresh air inside.


One or more of the sensor values are above the recommended level. Actions should be taken to either increase ventilation, dehumidifying or humidifying, depending on what levels needs to be addressed.


  • Integrated WiFi

  • User-friendly Mill app

  • Wireless

  • Rechargeable

  • Color: White

  • Operating temperatures: 5-35 degrees Celsius

  • Rechageable: battery time approx. 6 months (USB cable type C included)

  • Product size (W x D x H cm): 7.0 x 3.0 x 7.0.

  • Model name: SENSEAIR


Interested in Mill Sense Air?