Metal Oxide Gas Sensors for IAQ Monitoring

Metal Oxide Gas Sensors for IAQ Monitoring

IDT’s ZMOD4410 metal oxide (MOx) gas sensors are designed to detect total volatile organic compounds (TVOCs) and monitor indoor air quality (IAQ). They consist of a signal conditioner that measures the MOx conductivity, a function of gas concentration, and controls the sensor temperature. The sense element of these siloxane-resistant sensors consists of a heater element on a Si-based MEMS structure and a MOx chemiresistor. They feature an adjustable ADC resolution for optimal speed versus resolution (16-bit maximum), I2C interface, a wide operational temperature range of -40°C to 65°C, and built-in non-volatile memory (NVM) to provide space for arbitrary user data and stores the configuration.