High-quality measuring devices for clean indoor air

HK Instruments is a Finnish company that helps its customers to keep the quality of indoor air and the functionality of buildings high, resulting in well-being and energy savings. We design highly accurate and easy-to-use measuring devices, mainly for HVAC applications in ventilation and building automation systems.


Having lived in the clean Finnish climate, we know what it is like to breathe in good-quality fresh air. This is why we have been leading the way, in Finland and abroad, for more than 35 years, allowing everyone to enjoy good-quality indoor air.


Our advanced measuring devices produce highly accurate real-time information about indoor air to the building management system. This leads to high functionality of the building, which supports the wellbeing of people while keeping energy costs down. Our products are known for their ease of use. Applications for our devices range from highly demanding laboratory conditions to regular residential buildings.





People spend nearly 90% of their time indoors. The quality of indoor air is not insignificant. Clean indoor air that maintains wellbeing is one of the preconditions for life. The correct kind of indoor air maintains health, energy levels and comfort. Good-quality indoor air saves costs in healthcare and building maintenance.


  • Family
  • Friendship
  • Basic Needs of People
  • We respect Family and Friendship.
  • Every person sharing our
    journey is welcomed to our HK Family.
  • We care about
    people’s wellbeing – including their right to breathe clean air.


To deliver the best user and customer experience in HVAC and building automation.



Our mission is to provide clean indoor air and energy savings by manufacturing user-friendly measuring devices for HVAC.

Our Polish partner TMD Sensors shares what it is like to work with us and what they think about our products: