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Introducing the Q-series:

The Ultimate Radon & Air Quality Sensors

31.05.2024 – Articles

We are proud to present Lansen's Q-series! This is a collection of sensors that measures radon, along with multiple parameters such as CO2, temperature, humidity, and pressure. Thanks to it's frequent data collection of both radon and other air quality parameters, this is the perfect device to monitor and optimize your property for better air quality. Learn more about radon, the product and it's features down below.

What is radon?

Radon is a naturally occurring radioactive gas that can be found in high concentrations in indoor environments, for example in homes and workplaces. The gas is produced from the natural radioactive decay of uranium, and can therefore be found in all rocks and soils. Radon can also occur in certain building materials, such as concrete and brick. Geographically, the radon level varies. For example, high levels of radon can typically be found in Scandinavia and Austria, while countries such as Australia have much lower levels. However, it is important to remember that radon-levels still can be high in homes or offices built over sedimentary soils if the ventilation is poor.

Why should you measure radon?

Radon is one of the leading causes of lung cancer

Radon is estimated to contribute to 3% to 14% of all lung cancer cases in a country affected by radon. The exact percentage depends on factors such as the national average radon level and smoking prevalence within the population. In long time average radon concentration the risk of lung cancer increases by about 16% per 100 Bq/m3.

Radon levels in buildings varies from 10 Bq/m3 to 10 000 Bq/m3

In buildings such as homes, schools, and offices, radon levels can vary significantly, ranging from as low as 10 Bq/m3 to more than 10,000 Bq/m3. Due to the properties of radon, occupants of these buildings may unknowingly be exposed to very high radon levels.

Radon levels varies from hour to hour

Radon concentrations vary substantially between adjoining buildings, and also within a building from day to day, and from hour to hour. Because of these variations it is recommended to estimate the yearly mean concentration of radon indoors by measurements for at least 3 months.

There are many ways of reducing radon levels in buildings

Some common ways of reducing radon levels in existing buildings include:

  • Increasing under-floor ventilation.
  • Preventing the passage of radon from the basement into living spaces.
  • Sealing walls and floors.
  • Improving the ventilation of the building, especially in the context of energy convervation.

 

About the product

The Q-series from Lansen continuously measures important indoor parameters. This is the perfect device for commercial and public buildings, ensuring a smooth integration into any OMS system. With optional parameters such as CO2, temperature, humidity and pressure, this is a versatile product that ensures great air quality, always. The Q-series comes in three different variants:

See each variants product sheets by clicking the links above.

The Wireless M-Bus variants are available for delivery now. The mioty variants will be available for delivery end of Q3 2024 (prel.)

Radon sensor

Measurements

All sensor parameters are updated every 60 seconds except the radon level which is updated every 10 minutes. The fast response time of Radon values enables the device to be used in HVAC systems.

Features

  • Plug-and-play.
  • Measures the decay of radon particles.
  • C-, T-, or S-mode.
  • Send interval 60s - 1h. (Radon every 10 min)
  • Sleek and discrete design.
  • The data is protected using the AES128 encryption compliant with OMS standard.
  • Radon accuracy and precision at 10pCi/l (370 Bq/m3) is <±15%. This is based on average values calculated over 10 hours.
  • The radon values, 10-minute and hourly, are updated every ten minutes.

Highlights

  • Very cost-effective. 
  • Suitable for commercial, public buildings and apartments.
  • Can be used in HVAC systems.
  • Quick and accurate radon values - First radon value after only 15 minutes. 
  • Optional indication - (sound and light).

 

Lansen’s radon sensor in action: How to optimize a property’s ventilation

What is the difference between our device and other devices?

Below is a calculated example that clearly shows the difference between our device and other solutions that use long-term interpolation. When the ventilation is turned off (at 25:00h), our unit sees the radon increase immediately, while the other unit takes 5 hours (30:00h) to even react, making it difficult to control. Because our data is updated every ten minutes, you get a smoother and more accurate control of the ventilation, which is gentle on the ventilation system and good for electricity consumption.

When is our device the best fit?

Our device is best suited for controlling the ventilation, due to the frequent data collection. It can also be used to produce long-term average values that can be used as a basis for decision-making against radon, since you get all the data directly into your system. However, other solutions are also suitable for this, such as the example below. Which solution is the best for you simply depends on what you want to do with the data.

Lansen's Radon sensor graph

To learn more about the products and get a quotation, send a message to our sales team here!

Sources

Centers for disease control and prevention. (November 28 2022). Radiation from building materials. https://www.cdc.gov/nceh/radiation/building.html 

Swedish Radiation Safety Authority. (November 17 2023). Referensnivå och gränsvärden för Radon (Reference level and limit values for radon). https://www.stralsakerhetsmyndigheten.se/omraden/radon/referensniva-och-gransvarden-for-radon/ 

World Health Organization. (February 8 2021). National Radon concentration levels. https://www.who.int/data/gho/data/indicators/indicator-details/GHO/gho-phe-radon-database-national-radon-concentration-levels 

World Health Organization. (January 25 2023). Radon. https://www.who.int/news-room/fact-sheets/detail/radon-and-health