Gas sensor with I²C digital interface
The ZMOD4510AI4V is a gas sensor from Renesas Electronics, classified under air quality sensors, with a digital I²C output for direct connection to a host microcontroller or system-on-chip. Operating from a 1.7 V supply rail, it draws 11 mA typical during measurement, suiting battery-powered or low-power air quality monitors in indoor or outdoor enclosures.
Accuracy and output interface
Accuracy is specified at 15%, which is typical for a metal-oxide (MOx) gas sensor targeting total volatile organic compound (TVOC) or equivalent CO₂ (eCO₂) estimation — the figure reflects the sensor-to-sensor variation after factory calibration, not the raw sensing element drift. The I²C interface operates at standard or fast-mode speeds, allowing the host to read gas concentration data on a shared bus without an additional ADC or analog front-end.