ZMOD4410

Product Introduction

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 output 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 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 ultra-low operating current consumption implementation, the ZMOD4410 is an excellent choice for low-voltage and ultra-low power battery applications.

Features

• Sensor output based on AI machine learning algorithmic
• Absolute measurement of total organic compounds (TVOC) concentrations and indoor air quality (IAQ) to meet UBA air quality standard
• Estimated carbon dioxide level (eCO2)
• Absolute TVOC output to meet Public Building Air Quality (PBAQ) standards
• Relative IAQ based on TVOC and odor changes
• Algorithm to discriminate sulfur-based odors
• High sensitivity to Hydrogen (H2) based on resistance
• Heater driver and regulation loop for constant resistance, minimizing effect of environmental temperature on signal
• Built-in nonvolatile memory (NVM) for module-specific data (configuration and calibration)
• Ultra-low average power consumption down to 160µW
• Excellent for low-voltage and ultra-low power battery applications
• No external trimming components required
• External reset pin (active-LOW)
• Siloxane resistant
• JEDEC JESD47 qualified for 10 years lifetime
• Supply voltage: 1.7V to 3.6V
• Package: 12-LGA
• RoHS compliant
• Water and dustproof version available (IP67 certified)
• Available assembly sizes: 3.0 × 3.0 × 0.7 mm (standard version), 3.0 × 3.0 × 0.9 mm (for IP67 version)

Applications

• Indoor air monitoring to meet UBA and typical Public Building Air Quality (PBAQ) standards
• Monitor home, office, personal, and bathroom environments for healthy conditions and comfort
• Detect hazardous materials and unhealthy conditions (e.g., fumes from construction materials)
• Automation based on indoor ambient air quality (HVAC, air purifiers, thermostats, kitchen hoods, etc.)
• Third-party certification for compliance with accepted international IAQ standards and best available technology for eCO2

Specifications Table

To learn more, please download the PDF.