# project — Open Hardware Directory

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**1 project listed.**

## 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](https://openhardware.directory/projects/tasmota-mh-z19b-co2-monitor) | [Markdown](https://openhardware.directory/projects/tasmota-mh-z19b-co2-monitor/md)