CO2 Sensor "SACD Series"
Optimize the recirculation rate using real-time CO2 measurements to improve efficiency and indoor air quality!
The "SACD series" is a CO2 sensor that accurately and continuously measures CO2 concentration. The CO2 concentration measured inside the vehicle can also be used to utilize recirculation more efficiently, rather than relying on general estimates based on the number of passengers. Additionally, with configurable alarm levels, it enables personalized thresholds, proactive alerts, and timely responses to critical situations. 【Features】 ■ Robust photoacoustic measurement technology ■ Configurable alarm levels ■ Low power monitoring mode ■ Compact design that can be installed discreetly in the vehicle ■ LIN interface, always-on 12V compliant with bus wake-up support *For more details, please download the PDF or feel free to contact us.
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Exhibited at the 2026 Nagoya Automotive Technology Exhibition.
Sensirion exhibited at the "Automotive Technology Exhibition 2026 Nagoya," held at Aichi Sky Expo from June 17 (Wednesday) to June 19 (Friday), 2026. At this exhibition, we introduced sensor solutions for automotive applications. We also showcased 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 sincerely thank all the attendees. ■ Exhibits Measurement Demos: SWS4A: Direct water detection sensor for ADAS SPS6x, STC42A: Battery thermal runaway detection sensors SAEN6x: Integrated combo module for HVAC SACD4: Refrigerant (propane) leak detection sensor module SAAF4: Window fog detection sensor module
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We will be exhibiting at the 2026 Nagoya Automotive Technology Exhibition (June 17-19).
Sensirion AG will be exhibiting at the "Automotive Technology Exhibition 2026 Nagoya" held at Tokyo Big Sight from June 17 (Wednesday) to June 19 (Friday). At this exhibition, we will introduce our sensor solutions for automotive applications. We will also showcase measurement demonstrations and new products that will be unveiled for the first time at the exhibition, providing an opportunity for you to directly experience the performance and technological excellence of our products. We look forward to your visit. ■ Venue: Aichi Sky Expo (Aichi Prefectural International Exhibition Center) ■ Booth No.: 199 ■ Exhibits: SWS4A: Direct water detection sensor for ADAS measurement demo SPS6x, STC42A: Battery thermal runaway detection sensor measurement demo SAEN6x: Integrated combo module for HVAC measurement demo SACD4: Refrigerant (propane) leak detection sensor module measurement demo SAAF4: Window fog detection sensor module measurement demo Various physical samples All of our staff are sincerely looking forward to your visit.
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Exhibited at Smart Sensing 2026.
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)
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We will be exhibiting at Smart Sensing 2026 from June 10 to 12.
Sensirion AG will be exhibiting at the exhibition "Smart Sensing 2026" held at Tokyo Big Sight from June 10 (Wednesday) to June 12 (Friday). At this exhibition, in addition to environmental and flow sensing, we will also introduce refrigerant detection solutions and sensor solutions for automotive applications. We will showcase measurement demonstrations and new products that will be unveiled for the first time at the exhibition, providing an opportunity for you to directly confirm the performance and technological excellence of our products. We hope you will stop by. ■ Venue: Tokyo Big Sight ■ Booth No.: F - 07 (West Hall 3) ■ Exhibits: Refrigerant detection sensor measurement demo CO2 sensors (NDIR, photoacoustic, thermal conductivity) measurement demo Indoor air quality combo sensor module (temperature and humidity, PM, VOC, NOx, CO2, HCHO) measurement demo Liquid flow sensor measurement demo Anti-fog detection/automatic defrost sensor (SAAF series) measurement demo Various physical samples All of our staff are looking forward to welcoming you.
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Sensirion SACD Series: Improving Automotive Safety and Comfort - The Role of CO2 Sensors
The CO2 sensor is an important device that manages air quality inside vehicles and also detects refrigerant leaks. By maintaining appropriate CO2 levels in the cabin, it can reduce health risks for passengers and enable early detection of issues caused by refrigerant leaks. For these reasons, the introduction of CO2 sensors is becoming increasingly important for achieving a comfortable and safe in-vehicle environment. Sensirion's "SACD Series" continuously measures CO2 levels in the cabin to minimize risks associated with high CO2 concentrations. The measured CO2 concentration can be utilized not only for general estimates based on the number of passengers but also to facilitate more efficient air recirculation. This series features a compact design and adjustable alarm levels, allowing for the setting of individual thresholds to issue early warning signals. - Robust photoacoustic measurement technology - Configurable alarm levels - Low-power monitoring mode - Compact design that can be installed discreetly in the vehicle - LIN interface, bus wake-up compatible, always-on 12V compliant Sensirion automotive solutions
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Sensirion's mission is to provide sensors and sensor solutions with excellent design and reliability, becoming the number one partner for our customers. We aim to elevate the standards of sensor technology by leveraging technology intelligence. In doing so, we contribute to improving the sustainability, efficiency, health, safety, and quality of life for people and businesses. We pursue a common goal of shaping the future of the automotive industry, industrial sectors, building and HVAC technology, medical technology, and consumer electronics through innovation in collaboration with our partner companies and customers. Sensirion was founded in 1998 and currently has about 1,000 employees at its headquarters in Stäfa, Switzerland, and numerous subsidiaries around the world.












