OAQ sensor with I²C digital bus
The ZMOD4510AI2R is an integrated outdoor air quality (OAQ) sensor from Renesas, outputting measurement data over an I²C digital interface. The ±2% accuracy spec means the sensor's reported gas concentration stays within 2% of the true value across the calibrated range — tight enough for HVAC demand-control ventilation or indoor air quality monitors where regulatory compliance depends on repeatable readings. Operating from a 1.7 V supply rail, the sensor draws 11 mA during measurement. This low-voltage, moderate-current profile suits battery-powered or energy-harvested nodes where the system's LDO or buck converter must hold the rail above 1.7 V at the sensor's peak draw. The -40°C to 65°C operating range covers outdoor enclosures and unconditioned indoor spaces — think rooftop air-handler units or parking-garage monitors that see winter lows and summer heat soak.
Renesas lists the ZMOD4510AI2R as Active.