Sontay Ltd

Sensing is what we do...

Whatever the building, whatever the HVAC system, Sontay provides the sensing solutions to create smarter, healthier and more energy-efficient environments.
 

For over 50 years, Sontay has been at the forefront of sensing technology, providing high-quality sensors and peripheral devices that deliver the essential data behind intelligent building control.
 

Our comprehensive portfolio supports HVAC and Building Energy Management Systems (BEMS), from traditional analogue sensing and digital communications such as BACnet and Modbus to advanced wireless connectivity through our SORA LoRaWAN range.
 

Introducing WELLSense – launching at Smart Buildings Show 2026.
 

This October, we are proud to unveil WELLSense, our latest innovation in indoor air quality sensing. Designed and manufactured in Britain following two years of research and development, WELLSense brings together multiple environmental measurements in one streamlined device, including CO₂, carbon monoxide, particulate matter, VOCs, temperature and humidity.
 

Developed with the growing importance of health, wellbeing and indoor environmental quality in mind, WELLSense supports the monitoring requirements of standards such as WELL and RESET, helping building professionals make informed decisions about the air we share.
 

At Sontay, innovation goes beyond technology. Our experienced team works alongside customers to provide practical expertise, technical support and reliable solutions for every application.
 

From energy efficiency to occupant wellbeing, we're helping shape the future of smarter, healthier buildings.
 

Visit Sontay at Smart Buildings Show 2026 to discover WELLSense and explore our complete range of sensing solutions.
 

Better Air. Better Buildings. Better Planet.