Renesas offers innovative, high-performance environmental sensors for indoor air quality (IAQ), outdoor air quality (OAQ), refrigeration air quality (RAQ), industrial leak detection and humidity detection. Renesas' gas sensors are capable of accurate detection of Volatile Organic Compounds (VOCs), nitrogen oxides (NOx), ozone (O3), hydrogen (H2), and other flammable gases, and leverage advanced sensing materials with more than 15 years of proven stability and reliability.

Renesas provides the following environmental sensor platforms to fit your needs: analog and digital gas sensors, thermopile CO2 detectors and humidity sensors. The digital ZMOD gas sensor platform is an integrated digital and calibrated gas sensor ideal for high volume consumer and industrial air quality applications, while the analog SGAS gas sensor family is best suited for industrial control and leak detection applications. The thermopile CO2 detectors support CO2 sensors requiring high precision and performance. The humidity sensors offer high accuracy, fast measurement response times and long-term stability enabling customers to improve overall system performance and feedback control.

Analog Gas Sensors

Analog Gas Sensors

Trace hydrogen, flammable gas sensors

Digital Gas Sensors

Digital Gas Sensors

Configurable indoor, outdoor, and refrigeration air quality sensors

Humidity Sensors

Humidity Sensors

Relative humidity sensors with high accuracy and fast measurement response times

Analog Gas Sensors

Thermopile CO2 Detectors

Detectors supporting CO2 sensors requiring high precision


Analog Gas Sensors

Trace hydrogen, industrial organic chemical, and flammable gas sensors

Digital Gas Sensors

Digital sensor modules for indoor, outdoor and refrigeration air quality

Humidity Sensors

Sensors that feature a ±1.5% RH accuracy and four-second response time

Thermopile Gas Sensor Detectors

Detectors that support NDIR-CO2 sensors requiring high precision and performance

Videos & Training

Thermopile Gas Detectors Supporting CO₂ Modules

Renesas Thermopile gas detectors support CO2 sensors requiring high precision and performance. The silicon-based single and dual-channel detectors in TO-5 packages are available with filtering that is optimized for CO2 gas and support applications requiring high performance and accuracy such as HVAC systems, industrial and medical products. The extended temperature range operates up to 125 °C.

News & Blog Posts

A Look at How Renesas Gas Sensors Report Internal Indoor Air Quality (IAQ) Standards Blog Post Sep 27, 2022
Indoor Air Quality (IAQ) Goes Mainstream Thanks to Standards and Common Definitions Blog Post May 20, 2022
Prototyping Smart-Home Products is Easier than Ever with the Quick-Connect IoT System Blog Post Mar 25, 2022
A Breath of Fresh Air: Battery Powered Air Quality Monitoring Blog Post Jan 6, 2022
Renesas Expands Medical and Industrial Environmental Sensing Portfolio with New Thermopile-Based Detectors for CO2 Sensors News
Healthy Air in Schools and Public Buildings Blog Post Sep 16, 2021
Renesas Unlocks Personalized Air Quality Experiences With Ultra-Low Power ZMOD4510 Outdoor Air Quality Sensor Platform News
Outdoor Air Quality: It’s Not Just About Urban Areas Blog Post Jun 18, 2021
Renesas Expands ZMOD4410 Indoor Air Quality Family With Industry’s First IP67 Waterproof Sensor for High-Humidity Environments News
Splish Splash – Your Air Quality Sensor Can Take a Bath Blog Post Dec 9, 2020
Leveraging Artificial Intelligence in Gas Sensing Blog Post Jun 9, 2020
Something in the Air Quality Blog Post Sep 10, 2019
IDT Launches Industry’s First Software Upgradeable Digital Gas Sensor Platform for Smart Refrigerators News
IDT Provides New Firmware for its Latest Indoor Air Quality Platform to Support Low-Power Applications News
Managing Air Quality with Remote Gas Sensors Blog Post Dec 12, 2018
IDT Releases New Firmware for Bathroom and Kitchen Applications on its Indoor Air Quality Platform News
A Sense of Clean Air Blog Post Aug 8, 2018
IDT Expands its Flagship Integrated VOC Gas Sensor Line With Solutions for Indoor Air Quality Applications News
Why Does MOx Make the Difference? Blog Post Nov 15, 2017

Tools & Resources