# Tasmota MH-Z19B CO2 Monitor

> Build a WiFi CO2 monitor using MH-Z19B NDIR sensor with ESP8266/ESP32 and Tasmota. Measures 0-5000ppm CO2 concentration for indoor air quality and ventilation automation via MQTT.

## Details

- **Difficulty:** beginner
- **Project Type:** tutorial
- **Board Types:** ESP8266, ESP32
- **Devices:** wemos-d1-mini-esp8266
- **Firmware:** Tasmota
- **Use Cases:** co2-monitoring, indoor-air-quality, ventilation-automation, health-monitoring, home-automation
- **Links:** Blog Url: https://tasmota.github.io/docs/MH-Z19B/, Github Url: https://github.com/arendst/Tasmota

## Tags

`tasmota`, `co2`, `mh-z19b`, `air-quality`, `ndir`, `esp8266`, `esp32`, `mqtt`, `home-assistant`, `ventilation`, `indoor-air-quality`

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