ZMOD4410

ZMOD4410 Gas Sensor Module for TVOC and Indoor Air Quality Datasheet Description The ZMOD4410 Gas Sensor Module is designed for easy implementation to detect total volatile organic compounds (TVOC), estimate CO2, and monitor indoor air quality (IAQ). The module works reliably in various conditions, including very humid and dusty applications with the possibility of water spray, condensation, or immersion. The small LGA assembly consists of a gas sense element and a CMOS signal conditioning IC. The sense element is a Si-based microhotplate with a robust and highly sensitive metal oxide (MOx) chemiresistor. The signal conditioner (ASIC) controls the sensor temperatures and measures the MOx conductivity, which is a function of the gas concentration. The measurement results are easily read via an I2C interface with the user’s microprocessor, which processes the data. The firmware configurable platform quickly enables different ZMOD4410 features based on machine learning algorithms and embedded artificial intelligence (AI) with Renesas pre-trained models and algorithms. This is used to determine and output TVOC concentration, IAQ rating according to UBA, and estimated carbon dioxide (eCO2) level. Alternate algorithms and firmware implementations can output an absolute TVOC concentration to meet Public Building Air Quality (PBAQ) standards; a relative IAQ rating based on total VOC and odor levels changes or discriminate between sulfur-based odors. With the ultralow operating curr...