Smart speakers

Air quality sensing features maximize the value of smart speakers in smart homes

Humidity and temperature build the base

Our humidity and temperature sensors are designed to deliver maximal accuracy in the smallest size at a competitive price. Our comprehensive expertise in design-in and algorithms help manufacturers in the development of reliable and high-performance devices.

Differentiation with environmental sensors

In the competitive smart speaker market, differentiation is key. Our broad sensor portfolio addresses the pressing need to monitor indoor air quality. In particular CO2 monitoring is highly recommended, considering higher insulation standards in buildings and ventilation regulations.

No hassle, all in one SENxx modules

Show full commitment to air quality in your speaker with the easy to integrate SENxx modules. From particulate matter over VOC to CO2 and more are available in the same formfactor with integrated algorithms that guarantee a state-of-the-art measurement accuracy for your device.

CO2-Sensor STCC4

With its extremely compact form factor, the STCC4 unlocks new applications, previously limited by size and cost constraints. Utilizing the latest technological advancements in thermal conductivity sensing, it provides the accuracy needed for indoor air quality applications at a low current consumption.

Related sensors

Active 10


The 4th generation of best-in-class humidity sensing

Active 2


The future of MOX sensing



CO₂ accuracy of ±(50 ppm + 5% MV) @400-2000 ppm

  • Sensor
  • CO₂


Formaldehyde sensing made easy

Active 3


All-in-one air quality sensing



Sensing platform for simplified indoor air quality measurements

Product range diversity

Our product portfolio extends beyond temperature measurement to enhance smart speakers with a wider range of environmental parameters such as CO2, particulate matter, formaldehyde, and more. Incorporating these helps you differentiate your device and provide greater customer value.

Most innovative product

We continually advance our technology through a robust research and development program. Each development iteration aims to improve accuracy, lifespan, and power efficiency, while simultaneously reducing sensor size and costs.

25+ years of engineering experience

Trusted by leading smart speaker brands, we offer years of expertise in seamless sensor integration. Our team of skilled engineers offers comprehensive support throughout your product development process, ensuring optimal sensor performance and maximizing value for your customers.


Indoor air quality

In recent years, a new demand for clean air has developed among many people who value healthy living. When it comes to air quality, most of them rightly are worried about atmospheric pollution, but tend to forget about indoor air pollution.

Specialist article

The future of improving indoor air quality

When we think of air quality, we tend to think of air pollution in the regions surrounding our homes. We rely on measures such as the Air Quality Index to let us know when airborne pollutants in our towns or cities reach levels that may cause or exacerbate health issues.