This page collects information about using electronic sensors for detecting hydrogen sulfide. 

For information on the DIY photo paper method, see:

https://publiclab.org/hydrogen-sulfide-photopaper

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### Arduino-based sensor prototype 

Our first prototype used a digital sensor for hydrogen sulfide connected to an #arduino. Advantages of this system is that data from the sensor could be logged over time and that tool is reusable and portable. However the [Figaro TGS 825 sensor](http://figarosensor.com/gaslist.html) itself is relatively expensive--approximately $60 for an individual sensor and $40 in bulk. 

[![h2s-sensor-arduino.jpg](https://i.publiclab.org/system/images/photos/000/004/691/medium/h2s-sensor-arduino.jpg)](https://i.publiclab.org/system/images/photos/000/004/691/original/h2s-sensor-arduino.jpg) 

_Arduino and Industrial H2S Sensor_

## Research notes

[notes:hydrogen-sulfide-sensor]

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## Questions

[questions:hydrogen-sulfide-sensor]


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## Activities

[activities:hydrogen-sulfide-sensor]