At embedded world 2026, on the DigiKey booth, Lucy Barnard speaks with Gina Greco, Director of Global Channel Sales at Sensirion, about Sensirion’s success stories from 2025 and a look at the roadmap for 2026.
Having shipped more than 20 new products in 2025, the Swiss sensor specialist is positioning itself at the intersection of environmental sensing, health technology, and AI-driven applications.
A standout 2025 product lineup
Among the most impactful launches of 2025 was the STC C4 – Sensirion’s miniature CO2 sensor. Greco describes it as having “opened a new market,” explaining that previously “the size and cost of CO2 sensors were not allowing applications in the consumer market.” The STC C4 changes that calculus entirely: small enough to plug directly into a smartphone via USB-C, it brings real-time carbon dioxide monitoring to everyday consumer devices for the first time.
Equally significant was the launch of the Sen 6X family — a combo module capable of measuring up to nine air quality parameters simultaneously. Greco calls it “a one-stop solution for indoor air quality.” Before the module existed, engineers designing comprehensive air quality systems had to integrate, wire, and code up to nine separate sensors. The Sen 6X collapses that complexity into a single device, dramatically reducing time to market and enabling more sophisticated, AI-driven applications.
One unexpected application enabled by the Sen 6X is vape detection in public spaces. Greco says: “In restrooms, you cannot use a camera to check if people are smoking in, but through indoor air quality, you can say, ‘Someone is smoking in there, and we should do something about it.’” This example illustrates how multi-parameter sensing can unlock use cases that were previously impractical.
Gas leakage: from refrigerants to hydrogen
2025 also marked a strong entry into the refrigerant leakage detection market with the A2L sensor, developed in partnership with DigiKey to provide customers with an easy-to-use evaluation kit for rapid field testing. The experience gained with A2L is now informing Sensirion’s expansion into propane leakage sensing — another area where flammable refrigerant alternatives are driving demand for reliable, long-life detection technology. Speaking on the standard required, Greco says: “It’s a balance — being there on time, but at the same time with very high-quality, proven technology that people can really work with.”
Hydrogen sensing is emerging as another strategic priority, particularly for electric vehicle battery safety. Sensirion has released an automotive-grade hydrogen leakage evaluation kit in early 2026. Early detection translates directly to faster protective action and, ultimately, safer vehicles. With EV adoption accelerating and regulations tightening, Greco sees the demand as both substantial and enduring.
Smart buildings and tightening regulation
On the building automation front, Sensirion is responding to increasingly strict regional regulations with a targeted CO2 sensor portfolio. In Europe, automated ventilation systems are heavily CO2-dependent; in the US, ASHRAE compliance requirements for smart buildings are growing more demanding year on year. To meet this need, the company is preparing the SCD43 — a new CO2 sensor described by Greco as “best-in-class in terms of performance” — designed to allow customers to immediately satisfy smart building compliance requirements straight out of the box.
Beyond compliance, Greco notes that CO2 concentrations reaching 1,000ppm — a threshold easy to reach in busy, poorly ventilated spaces — can cause 20% of people to begin feeling symptoms. “If you want to have productive teams, if you want to take good decisions, you need to have good indoor air quality,” she says. It is a proposition that resonates equally in offices, schools, hospitals, and operating theatres.
A wearable sensor for personalised health
Perhaps the most anticipated product in Sensirion’s near-term pipeline is the SBN41 — a gas exchange sensor designed to measure oxygen and CO2 breath by breath. Intended to attach to a mask, the sensor will provide real-time metabolic activity data at a size and cost point that makes it viable for consumer wearables.
“Every person is different, so you need personalised solutions,” Greco says. Set for release towards the end of 2026, the SBN41 is a significant step in bringing medical-grade physiological monitoring to the mass market.
Watch the full interview here:
