The ZMOD4410 Gas Sensor Module is designed for detecting total volatile organic compounds (TVOC) and monitoring indoor air quality (IAQ). It is a 12-pin LGA assembly (3.0 x 3.0 x 0.7 mm) that consists of a gas sense element and a CMOS signal conditioning IC. The module’s sense element consists of a heater element on a Si-based MEMS structure and a metal oxide (MOx) chemiresistor. The signal conditioner controls the sensor temperature and measures the MOx conductivity, which is a function of the gas concentration. 

The measurement results can be read via an I2C interface with the user’s microprocessor, which processes the data to determine the TVOC concentration, IAQ rating and estimated carbon dioxide (eCO2) level. This flexibility makes the sensors in the ZMOD4410 platform capable of providing a variety of measurement options by varying the method of operation or changing the firmware used to interpret the resistance measurements. Downloadable firmware libraries and source code provided by IDT enables detection of TVOC and odors  and supports smart devices measuring IAQ that require low-power operation. The ZMOD4410 is ideal for applications such as thermostats, air purifiers, building controls, smart fans, HVAC equipment, and smart devices.


  • Measurement of total organic compounds (TVOC) concentrations and indoor air quality (IAQ)
  • Module algorithm estimates carbon dioxide level (eCO2)
  • Algorithm to set a control signal to trigger an external action based on IAQ and odor change
  • Multiplexed input channel for heater, resistance, and temperature measurements
  • I2C interface: up to 400kHz
  • Configurable alarm/interrupt output with static and adaptive levels
  • Adjustable ADC resolution for optimal speed versus resolution: 16-bit maximum
  • External reset pin (active-LOW)
  • Siloxane resistant

Product Options

Orderable Part ID Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
Active LGA 12 I Yes Reel
Active LGA 12 I Yes Tray

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ZMOD4410 Datasheet Datasheet PDF 783 KB
User Guides & Manuals
ZMOD4410 Programming Manual - Read Me Manual - Software PDF 395 KB
Application Notes & White Papers
ZMOD4410 Application Note - TVOC Sensing Application Note PDF 1005 KB
AN-1005 ZMOD4410 Application Note - Estimating CO2 Application Note PDF 742 KB
Overview of TVOC and Indoor Air Quality White Paper PDF 450 KB
PCN# : AI1910-01 Updated Datasheet MSL Rating from 1 to 3 Product Change Notice PDF 175 KB
ZMOD4410 - 2nd Gen - Air Quality & eCO2 Firmware - Recommended for New Designs Software ZIP 2.52 MB
ZMOD4410 - 1st Gen - Air Quality & eCO2 Firmware - Continuous and Low Power Software ZIP 2.76 MB
ZMOD4410 - Sulfur Odors Firmware Software ZIP 2.46 MB
ZMOD4410 - Odors, Firmware for Fan Control Software ZIP 2.44 MB
ZMOD4410 Gas Sensor for Indoor Air Quality Overview Overview PDF 774 KB
KSI Report - Algorithm Evaluation for eCO2-Tracking Report PDF 2.92 MB
Sensing Technologies and Sensor Solutions Overview 简体中文 Overview PDF 1.96 MB
KSI Survey Report on eCO2 Featuring ZMOD4410 Report PDF 420 KB
KSI Report - ZMOD4410 Gas Sensors Compliance with the UBA's IAQ Study Report PDF 2.19 MB
ZMOD4410 Altium Library Footprint and Schematic Symbol PCB Design Files ZIP 23 KB

Boards & Kits

Part Number Title Type Company
ZMOD4410-EVK TVOC and Indoor Air Quality Sensor Platform Evaluation Kit