TVOC sensor with I²C digital bus for indoor air monitoring
The Renesas ZMOD4410AI3V is a TVOC (total volatile organic compound) sensor in the ZMOD4410 family, designed for indoor air quality monitoring in HVAC, air purifier, and building automation systems. It outputs a direct TVOC reading over an I²C digital bus, eliminating the need for external ADC or signal conditioning. Rated for a 1.7 V supply rail and drawing 13 mA typical switching current, the sensor fits into low-power embedded designs where the host MCU runs at 1.8 V logic. The -40°C to 65°C operating temperature range covers residential and light commercial environments, though the upper limit is below automotive under-hood requirements. The water-resistant construction (noted in the product description) allows deployment in humid zones such as kitchens, bathrooms, or greenhouse monitoring without conformal coating on the sensor element itself.
Active lifecycle and compliance posture
No official successor or pin-compatible alternative is documented by Renesas for this order code.
Accuracy and interface fit for BOM integration
The 15 % accuracy figure (typical) is the TVOC reading uncertainty — this is acceptable for consumer-grade IAQ indication (e.g., air quality index on a display) but may not meet the tighter drift requirements of industrial safety monitoring or medical-grade air quality sensing. The I²C bus runs at standard 100/400 kHz rates; the sensor address and protocol are documented in the Renesas application note. Supply voltage is 1.7 V nominal — this is a single-rail part, so a 1.8 V LDO or direct connection to a 1.8 V MCU rail works without level shifting on the power side. The I²C bus may need a pull-up to the same 1.7 V rail or to the host logic voltage if the MCU runs at 3.3 V.