The ZMOD4410 Gas Sensor Module is a 12-pin LGA assembly designed for detecting total volatile organic compounds (TVOC) and monitoring indoor air quality (IAQ). It integrates a gas sense element with a CMOS signal conditioning IC to measure MOx conductivity, which correlates to gas concentration. The module offers an I2C interface for data retrieval, enabling microprocessors to determine TVOC concentration, IAQ rating, and estimated carbon dioxide (eCO2) levels. It also features an algorithm to generate a control signal for triggering actions based on odor levels. With low operating current consumption, it is ideal for battery-powered applications. Built-in nonvolatile memory stores configuration and user data.
| Feature | Specification |
|---|---|
| Measurement Capabilities | Total Volatile Organic Compounds (TVOC) concentrations, Indoor Air Quality (IAQ), Estimated Carbon Dioxide (eCO2) level |
| Interface | I2C (up to 400kHz) |
| Power Supply | 1.7V to 3.6V |
| Power Consumption | Very low average power consumption down to 1mW (Low-Power Operation Mode) |
| Heater Control | Heater driver and regulation loop for constant heater voltage or constant heater resistance |
| Temperature Sensor | Internal auto-compensated, not stress sensitive |
| Output | Configurable alarm/interrupt output with static and adaptive levels |
| ADC Resolution | Adjustable, up to 16-bit maximum |
| Memory | Built-in nonvolatile memory (NVM) for configuration and user data |
| Reset | External reset pin (active-LOW) |
| Environmental Resistance | Siloxane resistant |
| Operation Modes | Standard IAQ and eCO2, Low Power IAQ and eCO2, Odor |
| Typical Applications | Indoor air monitoring, home/office/personal environment monitoring, hazardous material detection, HVAC automation, air purifiers, thermostats |