CO2 sensor "STCC4"

Sensirion exhibited at the "Automotive Technology Exhibition 2026," held at Tokyo Big Sight from June 10 (Wednesday) to June 12 (Friday), 2026. At this exhibition, we showcased sensor solutions for automotive applications, in addition to environmental sensing and flow sensing. We also presented various measurement demonstrations and new products for the first time at the exhibition, allowing many visitors to see the performance and technological capabilities of our products. We would like to express our heartfelt gratitude to all the attendees. 【Main Demonstration Exhibits】 SCD5x New CO2 Sensor SGD4x Refrigerant Detection Sensor SEN6x Indoor Air Quality Combo Sensor Module SLF3x Liquid Flow Sensor Integrated Combo Module for HVAC (SAEN6) Refrigerant (Propane) Leak Detection Sensor Module (SACD4) Window Fog Detection Sensor Module (SAAF4)

High-quality sleep is essential for maintaining cognitive function and physical recovery. However, in recent years, it has become increasingly difficult to secure restorative sleep, and one of the factors behind this is the growing concern about indoor air quality (IAQ). Recent findings suggest that insufficient ventilation and rising indoor CO₂ levels may impact sleep quality, brain function, and the autonomic nervous system. CO₂ concentration is a representative indicator of indoor ventilation conditions, and monitoring with CO₂ sensors allows for quantitative assessment of invisible environmental factors. <Reasons for the focus on CO₂ monitoring> ■ Stable measurements using proven sensing technology ■ Compatibility with a wide range of applications, including HVAC, smart devices, and healthcare equipment ■ Support for compliance with major indoor environmental standards such as WELL and RESET <Examples of applications> ■ Air conditioning and ventilation systems, indoor air quality (IAQ) monitors ■ Smart home devices and healthcare-related devices CO₂ monitoring contributes to creating a more comfortable and healthy sleep environment by visualizing environmental data and leading to actions such as improving ventilation. For details on the features and specifications of CO₂ sensors, please refer to the catalog.

The smart thermostat provides a comfortable environment by monitoring and controlling indoor temperature, humidity, and CO₂ concentration, and optimizes energy consumption using geofencing (automatic control based on location) and advanced algorithms. It can also be integrated with smart home ecosystems such as heat pumps, HVAC systems, and heat exchange ventilation systems. ■ Recommended Sensors Humidity and Temperature Sensor SHT40: High precision of ±1.8% RH and ±0.2°C. Size: 1.5×1.5×0.5mm CO₂ Sensor STCC4: Current consumption of 850μA (at 1Hz operation). Size: 4×3×1.2mm ■ Sensirion's Solutions - Industry-leading compact humidity, temperature, and CO₂ sensors - High precision and high reliability - Sensor variations according to application and budget - Sensors compliant with WELL, RESET, CA24, USGBC, ASHRAE standards ■ Recommended Applications - Smart thermostat - Indoor air quality monitor - Smart speakers - Wearable devices - Air purifiers For product specifications or inquiries, please contact us or use the document download option.

Sensirion has started selling the "STCC4". The world's smallest CO₂ gas concentration sensor Overcoming size and cost constraints, it enables CO₂ measurement across a wide range of applications. ■ Thermal conductivity sensing technology ■ By collaborating with Sensirion's temperature and humidity sensors, it allows for: - High-precision correction of measurement values - Monitoring of indoor environmental parameters ■ SMD design and tape & reel packaging support mass production ■ Ideal for integration into indoor air quality monitors, smart thermostats, air conditioners, and more.